Table of Content

25 July 2020, Volume 59 Issue 14

Previous Issue    Next Issue

Reviews

Research and development of walnut diaphragma juglandis based on literature

ZHANG Feng, LYU Hong-lin, YANG Jing-juan, CHEN Chao-yin, NING De-lu, MA Ya-ge, ZHAO Sheng-lan

2020, 59(14):  5-11.  doi:10.14088/j.cnki.issn0439-8114.2020.14.001

Asbtract ( 623 )   PDF (2434KB) ( 467 )  

References | Related Articles | Metrics

Based on the China Knowledge Network, Web of science, China Patent Announcement, and World Intellectual Property Office PATENTSCOPE database,the literature of walnut diaphragma juglandis were studied, and its the current research status was analyzed. The results showed thatdiaphragma juglandis was first recorded in 1841, and the journal literature first appeared in 1983. At present, there were 103 Chinese literature and 6 English literature. There were 237 Chinese patent applications, 16 authorized patents and 22 English patents. The patent literature first appeared in 2001, mainly involving composition （30 pieces）, tonifying Yang （28 pieces）, tonifying Qi （26 pieces）, and tonifying Yin （21 pieces）. It was known to contain mainly flavonoids （6.26%）, polysaccharides （5.4%）, total saponins （4.19%）, alkaloids （3.81%）, phenolic acids （3.39%）, volatile oils and other functional gredients. It had anti-tumor, anti-oxidation, anti-inflammatory, lowering blood sugar and other effects. The development of diaphragma juglandisbag beverage brewing process, health functional wine, instant tea and other aspectsneed further study.

Effects of cultivation and management measures on soil organic carbon and nitrogen accumulation and crop yield in rice-wheat rotation system

JIN Zhao-qiang, NIE Li-xiao

2020, 59(14):  12-17.  doi:10.14088/j.cnki.issn0439-8114.2020.14.002

Asbtract ( 478 )   PDF (1615KB) ( 257 )  

References | Related Articles | Metrics

Cultivation management measures will affect the accumulation of organic carbon and nitrogen nutrients in the soil of rice-wheat rotation system, and then affect the yield of rice and wheat. The latest research results in this field were reviewed, and the soil tillage, rice and wheat planting and water and nitrogen management methods which affected soil organic carbon and nitrogen accumulation and rice and wheat yield in rice-wheat rotation system were analyzed in detail,and the relevant suggestions for maintaining the soil fertility and increasing the yield of rice and wheat in rice-wheat rotation system were put forward, in order to provide certain theoretical guidance for rice and wheat production in our country.

Resource & Environment

Analysis of biomass carbonization and conversion to fields as a technical approach to soil improvement and circular agriculture

WANG Li-yuan, LI Xiao-long, REN Tian-bao, XU Chen-sheng, LIU Ju-hua, ZHANG Yong-jiang, CHEN Nan, WAN Ying-fa, LIU Guo-shun

2020, 59(14):  18-23.  doi:10.14088/j.cnki.issn0439-8114.2020.14.003

Asbtract ( 494 )   PDF (1816KB) ( 503 )  

References | Related Articles | Metrics

Circular agriculture and green low carbon is an important way of promoting the construction of ecological civilization. Agriculture to biomass returning carbonized has good development potential in soil improvement. The application of biomass charcoal in soil has an impact on the function of agricultural soil ecosystem by improving soil physical and chemical properties, improving soil fertility and remediation of soil pollution. Based on the physicochemical properties of biomass charcoal and the basic approach of carbonization returning to the field to improve the soil, the research status of biomass charcoal used in soil improvement was systematically analyzed, and the outstanding advantages of biomass charcoal in improving tobacco planting soil was identified. The utilization model of biomass carbonization technology was proposed, and the potential of biomass carbon in tobacco planting soil conservation and nutrition management was discussed.

Dynamic characteristics and trend prediction of ecological carrying capacity in Dongting Lake area

TAN Jie, HAO Qi, TAN Xue-lan, WU Yi-ze, ZHOU Wei-jun

2020, 59(14):  24-29.  doi:10.14088/j.cnki.issn0439-8114.2020.14.004

Asbtract ( 469 )   PDF (1652KB) ( 142 )  

References | Related Articles | Metrics

The state space method was used to evaluate the evolution of ecological carrying capacity in Dongting Lake area in 2005, 2010 and 2015. The ecological carrying capacity of Dongting Lake area in 2020 and 2025 was simulated and predicted by grey prediction model. The results showed that the ecological carrying capacity of Dongting Lake area exhibited an upward trend from 2005 to 2015. In addition to the carrying capacity of resources and environment, the ecological resilience and social and economic coordination were in a state of overload. From 2020 to 2025, the ecological carrying capacity of Dongting Lake area was expected to continue to increase and remain in the loadable state. Stability and coordination degree of the complex natural, economic and social dynamic system in the area will rise to some extent. The ecological resilience and the coordination of social economy were the main restricting factors for the improvement of ecological carrying capacity. In the future, Dongting Lake area should further transform the economic development mode and strive to improve the ability of ecological system self-regulation and self-maintenance.

Study on cultivated land pattern and landscape fragmentation in Qianjiang city

XU Li-yang, MARHABA·YUSUFU

2020, 59(14):  30-36.  doi:10.14088/j.cnki.issn0439-8114.2020.14.005

Asbtract ( 496 )   PDF (3954KB) ( 340 )  

References | Related Articles | Metrics

Based on the land cover data of GlobeLand 30 in 2000 and 2010, taking Qianjiang in Hubei province as the research area,the soil spatial and temporal variation characteristics of cultivated land in Qianjiang is analyzed. And the arable land patch area and the fragmentation index of 19 towns in the city are calculated. The cultivated land area and the fragmentation coupling mode of 9 kinds of cultivated land change are established. The changes in cultivated land, cultivated land fragmentation country towns and the characteristics of both associated with formation of the farmland change are analyzed. The results show that the total cultivated land area of Qianjiang remained stable from 2000 to 2010, but the variation range of the cultivated land area of each town and town within Qianjiang was significant, and the cultivated land fragmentation was intensified. The cultivated land change pattern of “the reduction of cultivated land area with the increase of fragmentation” is dominant in Qianjiang, and it is located in the northeast region where urbanization is developing rapidly. The townships with the pattern of “increase in cultivated land area with reduced fragmentation” are mainly distributed in the southwestern regions where agriculture is relatively developed. The urban construction land gradually occupied the cultivated land in Qianjiang, resulting in a sharp decrease in the area of cultivated land at the edge of the city, and the internal fragmentation trend of the cultivated land is serious.

Study on cleaning and quality control technology of agricultural micro-meteorological observation data

ZHOU Qiang

2020, 59(14):  37-40.  doi:10.14088/j.cnki.issn0439-8114.2020.14.006

Asbtract ( 466 )   PDF (2037KB) ( 328 )  

References | Related Articles | Metrics

In order to improve the quality of agrometeorological observation data, the cleaning standard and quality control method of agrometeorological data are established based on the unique meteorological observation equipment and environmental attributes of farmland. For the case of abnormal data attributes and repeated records, the method of cleaning the blank value of Bohn data cleaning model and the method of cleaning the noise data are selected. Through the historical data statistics of observation elements in the space of agricultural micro meteorological observation station, the clean data index is obtained and applied to the dynamic threshold generation method of data quality, and the quality control model of agricultural micro meteorological data is established. The data evaluation indexes after cleaning and quality control showed that the accuracy and repeatability of the data are significantly improved after data cleaning and quality control model. The data cleaning quality control method is helpful to obtain the monitoring information of agrometeorological disaster accurately and provide effective decision support for agricultural disaster prevention and reduction.

Research and application demonstration of key technology of lightning disaster prevention in rural areas of Hunan province

LIU Feng-jiao, WAN Xie-cheng, YANG Jia-yan, HE Qiu-yan, LIU Yan-qing

2020, 59(14):  41-44.  doi:10.14088/j.cnki.issn0439-8114.2020.14.007

Asbtract ( 481 )   PDF (1732KB) ( 305 )  

References | Related Articles | Metrics

To improve the level of rural lightning disaster prevention science and technology as the goal, the lightning disasters were analysed in Hunan province. Key technical indexes and comprehensive technical methods for rural lightning disaster prevention had been established. National mandatory standards had been developed and issued. And the application and demonstration of comprehensive lightning disaster prevention technology had been successfully carried out. The following innovative results were obtained： ①The national standard for the lower limit of lightning strike frequency of rural residential lightning protection buildings and the corresponding key points of design and construction technology were determined; ②The symmetrical unequal spacing quadrupole method was proposed as the preferred method to measure the soil resistivity and a patent was applied, which can better reflect the actual stratification of natural soil and was more stable and more accurate; ③The distribution map of soil resistivity in Changsha region was drawn, and the analysis software was developed. It was found that the soil resistivity value was significantly positively correlated with precipitation; ④Integrated lightning protection facilities construction technologies, such as simulation trees, emergency shelters and single rural residential lightning protection facilities were used to create a regional protection system for thunderstorm path interception, and a new all-round and three-dimensional regional lightning protection and disaster reduction model in rural Hunan province was established.

Analysis of the periodic change and trend of agro-climatic resources in Bei'an city based on Morlet wavelet

XU Ming-yuan, WANG Hai-ning, XU Wen-long

2020, 59(14):  45-51.  doi:10.14088/j.cnki.issn0439-8114.2020.14.008

Asbtract ( 508 )   PDF (3983KB) ( 264 )  

References | Related Articles | Metrics

Based on the 1959—2019 meteorological data of the national basic meteorological stations, farm meteorological stations and regional meteorological stations in Bei'an city, Heilongjiang province, using Matlab to make wavelet analysis chart for cycle analysis, using one-dimensional linear fitting and quadratic polynomial fitting for linear trend analysis, the agricultural climate resources affecting crop growth in Bei'an city for nearly 61 years were analyzed. The results showed that the temperature fluctuation in the growing season of crops in Bei'an city had shown an overall rising trend in recent 61 years, while the accumulated temperature had shown a significant upward trend, rising slowly at the rate of 70 （℃·d） every 10 years, which had been at a higher level since 2000,and the accumulated temperature increase made the heat resources showing an overall increasing trend. The precipitation showed no significant decreasing trend. The wavelet analysis showed periodic changes in monthly and total precipitation of the growing season, and the sunshine hours showed periodic changes, and the linear trend slightly decreased. The change trend of the first frost day was delayed year by year, and the change trend of the final frost day was advanced year by year. The number of frost-free days showed periodic changes, and the overall trend showed an increasing trend.

Connection between precipitation of low latitude plateau in dry season and Indian Burma trough

DENG Jian-bo, LIU Kui, TANG Xiao-nan, ZHOU Bi

2020, 59(14):  52-55.  doi:10.14088/j.cnki.issn0439-8114.2020.14.009

Asbtract ( 509 )   PDF (4152KB) ( 380 )  

References | Related Articles | Metrics

Based on monthly atmospheric circulation reanalysis data from Global Modeling and Assimilation Office（GMAO）and Goddard Earth Sciences Data and Information Sciences Center（GES DISC） and precipitation of 148 weather stations in low latitude plateau region from 1979—2012, the relationship between the India Burma trough and the precipitation of low latitude plateau in dry season was investigated by using correlation and synthesis method. The results showed that the India Burma trough was an important factor affecting the precipitation of low latitude plateau in dry season. Water vapor was transported to the low latitude plateau region by southerly wind in front of the India Burma trough. Strong vertical ascending motion in front of the trough promoted the CISK physic process and caused rainfall when met the cold and dry northerlies in the southeast of the Tibet Plateau. The positive feedback mechanism of atmospheric barocline development and radial circulation which would hamper the dispersion process of atmospheric barocline were established when the trough grows strong. As a result, the configuration of the meteorological filed can be affected, which further influenced the precipitation of this region in dry season.

Spatial and temporal distribution characteristics of drought and its relationship with land types in Hengshao basin

ZHOU Li, ZHOU Hui, LI Qiao-yuan, ZHU Xin-wei, JIANG Shuai, YIN Yi-wen

2020, 59(14):  56-62.  doi:10.14088/j.cnki.issn0439-8114.2020.14.010

Asbtract ( 446 )   PDF (5807KB) ( 305 )  

References | Related Articles | Metrics

Based on the conventional meteorological data of 97 meteorological stations in Hunan province from 1975 to 2015, the precipitation and drought characteristics in Hunan province were analyzed. On this basis, combined with the topography of Hengshao basin, the spatial and temporal distribution characteristics of drought in Hengshao basin from 2005 to 2015 were analyzed, and the relationship between drought and land use in this period was mainly studied. The results showed that the annual precipitation in Hunan province was different. The spatial and temporal distribution was uneven. The precipitation in most areas was mainly concentrated in April to June, accounting for 42% of the total precipitation in the whole year. The annual precipitation varied greatly in regional distribution. The precipitation in the west, south and east mountainous areas was more than that in the middle hills and the northern Dongting lake plain. The drought days in summer and autumn account for 60%~80% of the total number of drought days in Hunan province, especially in Hengshao basin in central Hunan province, where the frequency of drought was the highest, reaching more than 70%, and the spatial and temporal distribution of drought varies greatly among counties and cities in the region. Because of the influence of topographic subsidence airflow, the process rainfall in Hengshao basin was often less than that in other areas, and the probability of drought was higher than that in other areas. For most regions, the percentage of cultivated land, forest garden land and grassland was negatively correlated with composite meteorological drought index （CI）, while the percentage of urban and rural, industrial and mining, residential land is positively correlated with CI.

Analysis of rural residential area patterns in oasis in extremely arid areas：A case study of Pishan county oasis

XU Cai-fang, CAO Yue-e, XU Zhong-lin

2020, 59(14):  63-68.  doi:10.14088/j.cnki.issn0439-8114.2020.14.011

Asbtract ( 415 )   PDF (2756KB) ( 283 )  

References | Related Articles | Metrics

Based on the 2016 Land Change Survey Database to extract the spatial distribution information of residential areas, combined with qualitative and quantitative analysis methods, GIS spatial analysis, landscape pattern index and other methods, with the “polarization effect” and “hydrophilic effect” as an opportunity,the spatial heterogeneity of rural settlements distribution in Pishan county oasis in extremely arid areas is analyzed. The research shows that the residential areas in the study area are concentrated in the hinterland of the township center. With the increase of the radiation radius, the scale of the residential area gradually decreases, and the spatial agglomeration is more obvious. The HH agglomeration phenomenon appears in the hinterland of the cluster-type township center. With the increase of the radiation radius, the clustering of HL and LH outliers is gradually presented, and the distribution of linear residential sites is mostly random. The closer the layout of the residential areas closer to the administrative center is, the more regular, centralized, and the more spatially connected, the more obvious the “polarization effect”. With the increase of radiation radius of river water source, the residential areas in the study area are gradually concentrated and complicated, and the spatial connection degree of residential areas is gradually increasing; The dispersion of linear residential area is gradually decreasing, and the area disparity is gradually increasing; The degree of dispersion of shaped residential area gradually increases, and the area disparity increases gradually.

Preparation of fungus based on garden waste and its application

PENG Chun-yan, GAO Yu-hui, WU Hua-nan, ZHENG Wei-guo, LIU Tian-xiang, LI Jun-juan, YU Dong, ZHENG Wen-fang

2020, 59(14):  69-75.  doi:10.14088/j.cnki.issn0439-8114.2020.14.012

Asbtract ( 377 )   PDF (3196KB) ( 317 )  

References | Related Articles | Metrics

Based on the concept of “using waste to control pollution”, a fungus with high pollution resistance prepared from garden waste was applied to polluted river water to realize the linkage treatment of solid waste and waste water. Garden waste content, substrate thickness and initial moisture content were taken as influencing factors. The effect of the content, substrate thickness and initial water content of garden waste on the preparation of spores was investigated, and the preparation process was optimized by response surface method. The results showed that the most influential factor on the yield of spore was substrate thickness, followed by garden waste content and initial moisture content. The optimum conditions were garden waste content 46%, substrate thickness 3 cm and initial moisture content 57%. Under such conditions, the actual results were close to the predicted values of regression equation. Then the prepared spores were activated and added to polluted river water at an inoculum of 0.50‰. After 54 hours of aeration, the removal rates of COD, NH₃-N and TP reached 84.97%, 97.07% and 51.64%, respectively. Continuous experiments demonstrated that this integrated system could effectively remove pollutants such as COD, NH₃-N and TP in polluted river water with high stability.

Plant Protection

Study on the genus Harnischia, Kieffer from Zhejiang province

YANG Kai-nan, LIN Li-yan, YIN Yi-qing, CHEN Xiao-yu, QI Xin

2020, 59(14):  76-79.  doi:10.14088/j.cnki.issn0439-8114.2020.14.013

Asbtract ( 430 )   PDF (1939KB) ( 545 )  

References | Related Articles | Metrics

Four species of the genus Harnischia Kieffer including Harnischia curtilamellata （Malloch, 1915）, Harnischia japonica （Hashimoto, 1984）, Harnischia tenuitubercula （Chaudhuri & Chattopadhyay, 1990）, Harnischia turgidula （Wang & Zheng, 1993） from Zhejiang province were described in detail. The main feature map and the species retrieve the table were attached. All the above four species were new species recorded in Zhejiang province, while Harnischia tenuitubercula （Chaudhuri & Chattopadhyay） was the first record for China.

Effect and safety of nicosulfuron·mesotrione·atrazine and S-metolachlor in controlling spring corn weeds

LONG Shui-liang, WU Xiao-feng, LEI Gan-nong, KONG Xuan-qing, JIN Chen-zhong, LI Cheng-ye, OU Xiao-ming, TANG Juan

2020, 59(14):  80-84.  doi:10.14088/j.cnki.issn0439-8114.2020.14.014

Asbtract ( 982 )   PDF (1627KB) ( 722 )  

References | Related Articles | Metrics

Using the closed weeding method before single seedling and the single weeding method after seedling in spring maize fields as control, the effects of the closed weeding method before seedling combined with the application method after seedling on Alternanthera Philoxeroides （Mart. Griseb.）, Chenopodium album L. and Artemisia lavandulaefolia DC in the maize fields of Yongzhou city, Hunan province were investigated. The results showed that the pre-emergence spraying S-metolachlor 1 200~1 800 g/hm², combined with post-emergence spraying 28% of nicosulfuron·mesotrione·atrazine 2 100~3 000 g/hm² , the three kinds of weeds in seedling after applying pesticide, herbicide, the control effect and fresh weight of 55 d were over 90%, the overall higher than that of individual treatment and long-term effectiveness and safety.

Explore the feasibility of breeding Arma chinensis with Tenebrio molitor as food

XIE Xiao-fei, HUANG Yong, XIA Peng-liang, REN Xiao-hong, WANG Rui

2020, 59(14):  85-87.  doi:10.14088/j.cnki.issn0439-8114.2020.14.015

Asbtract ( 442 )   PDF (1787KB) ( 268 )  

References | Related Articles | Metrics

In order to explore the feasibility of breeding Arma chinensis with Tenebrio molitor as food, Arma chinensis’s developmental duration, mortality, adult weight and egg production by feeding on Tenebrio molitor pupae, Mythimna separata pupae and Mythimna separata nymph in the laboratory were measured and compared. The results showed that Arma chinensis feeding on Tenebrio molitor pupae could normally complete generation development, and there was no significant difference in body weight of adult Arma chinensis feeding on three kinds of food. Arma chinensis feeding on Tenebrio molitor： The nymph duration was 27.97 d, which was significantly lower than 25.30 d in the pupa group and 31.27 d in the larva group of Mythimna separata; The mortality rate of nymph was 26.67%, which was significantly lower than 33.33% and 83.33% of pupae and larvae feeding on Mythimna separata; The average spawning amount of single females in the generation was 266.67, which was significantly different from 413.00 in the pupa group of Mythimna separata and not significantly different from 292.3 in the larvae group of Mythimna separata.

Sensibility of Echinochloa grass to quinclorac in the rice planting areas in Sichuan province

ZHU Jian-yi, ZHENG Shi-jun, PU Po, ZHAO Hao-yu, LIU Sheng-nan, YANG Xiao-rong, XIANG Yun-jia, ZHOU Xiao-gang

2020, 59(14):  88-90.  doi:10.14088/j.cnki.issn0439-8114.2020.14.016

Asbtract ( 424 )   PDF (1639KB) ( 287 )  

References | Related Articles | Metrics

In order to understand the resistance of barnyard Echinochloa grass to quinclorac in rice fields of Sichuan province. Whole plant bioassay was conducted to determine the sensibility of twenty barnyard grass populations to quinclorac and to quantify their resistance level. The results showed that ten populations were still in a sensitive or sensitive decline stage. Nine populations produced different degrees of resistance to quinclorac, of which six populations were low resistant and three populations were medium resistant. Nearly 50% of the tested barnyard grass populations were resistant to quinclorac, most of which were low resistant or medium resistant. The resistance level was generally low.

Evaluation of application effect of solar insecticidal lamp in rice field experiment

LIU Hong-ju, ZHANG Zheng-hong, CHEN Ai-fang, PU Zhi-ping, SUN Lei, YANG Zhi-yuan

2020, 59(14):  91-93.  doi:10.14088/j.cnki.issn0439-8114.2020.14.017

Asbtract ( 429 )   PDF (1600KB) ( 295 )  

References | Related Articles | Metrics

In order to objectively evaluate the trapping and killing effect of the automatic insect-killing frequency vibration type solar insecticidal lamp on the main pests of rice, a comparative field experiment is carried out between the Bion automatic insect-killing frequency vibration type solar insecticidal lamp and the common frequency vibration type solar insecticidal lamp. The results showed that the control effect of Bion's automatic insect-clearing frequency-vibration insecticidal lamp on main rice pests is better than that of ordinary frequency-vibration solar insecticidal lamp.

Horticulture & Local Products

Effects of 5-aminolevulinic acid on yield and quality of cream cabbage

MA Jing-shu, ZHANG Qian-ru, SONG Jiao, ZHANG Mei

2020, 59(14):  94-96.  doi:10.14088/j.cnki.issn0439-8114.2020.14.018

Asbtract ( 452 )   PDF (1725KB) ( 164 )  

References | Related Articles | Metrics

The effects of foliar application of 5-aminolevulinic acid at different concentrations on yield, chlorophyll, vitamin C, protein and soluble sugar content of cream cabbage were studied. The results showed that compared with the control group, spraying 5-aminolevulinic acid solution at different concentrations on the leaves had significant effects on the quality indexes of cream cabbage. The chlorophyll content and vitamin C content reached the highest when spraying 5-aminolevulinic acid solution at 1.70 g/L on the leaves, and the protein content and soluble sugar content reached the highest when spraying 5-aminolevulinic acid solution at 0.85 g/L on the leaves. The effect of spraying different concentrations of 5-aminolevulinic acid on the yield of cream cream was not obvious.

Study on cadmium accumulation characteristics of different eggplant materials

LI Zhi-rong, LU Rong-hai, PAN Shao-kun, YANG Liu, LIN Li-jin, LI Hong-yan, XIANG Juan, WU Yong-mei

2020, 59(14):  97-100.  doi:10.14088/j.cnki.issn0439-8114.2020.14.019

Asbtract ( 432 )   PDF (1617KB) ( 235 )  

References | Related Articles | Metrics

Twelve eggplant （Solanum melongena L.） materials were planted in cadmium-contaminated soil by pot experiment to study the biomass and cadmium （Cd） accumulation characteristics at the seedling and flowering stages. The results showed that there were obvious differences between eggplant materials on biomass and Cd content. The biomass in root, stem, leaf and shoot of the material XN-Z1-2 were all higher, while that of the material “43-1” was relatively lower;the Cd content of different organs of material XN-Z1-2 was lower but that of the material “43-1” was all the highest when eggplant was at the seedling stage. Overall, the biomass of each organ of the material “96-2” was higher and that of the material “43-1” was the lowest; the Cd content was the highest in various organs of the material “43-1” and generally lower in the material ZF-Z1-2 if eggplant was in the flowering stage. In conclusion, “43-1” was a kind of eggplant material with high Cd accumulation; the material XN-Z1-2 and ZF-Z1-2, all possessed higher biomass and lower Cd accumulation, were eggplant materials with low Cd accumulation which could grow normally in Cd-contaminated soil.

Flowering stage and biological characteristics of different peony cultivars introduced in Wuhan city

HAN Yan-ni, LIU Yan-ling

2020, 59(14):  101-107.  doi:10.14088/j.cnki.issn0439-8114.2020.14.020

Asbtract ( 504 )   PDF (1987KB) ( 307 )  

References | Related Articles | Metrics

In order to understand the growth and flowering status of different peony varieties （Paeonia suffruticosa Andr.） combinations in Wuhan area, the flowering period and biological characteristics of five introduced peony varieties （Zhongyuan, Jiangnan, Japan, the United States and Francepeony cultivar group） in Wuhan were observed and studied from 2017 to 2019. Results showed that the flowering period of different peony cultivarswas mainly concentrated in April in Wuhan area,and the peak flowering was early and middle of April. There were also some differences in the flowering period of different peony cultivars in the introduced land. In addition, both planting foreign peony cultivars and domestic peony cultivars in the same garden could extend the flowering period by 10~15 days, and at the same time enriched the color of peonygarden. Compared with the place of origin, the peony color basically maintained the original color, but the flower shape was degraded. There were 44 % of foreign peony cultivarswhose flower shape showed degradation to different extents.

Effects of foliar spraying of different regulators on quality of tobacco leaves

DONG Kun-le, MAO Jia-wei, KONG De-hui, ZHANG Xiang, ZHAO Hao-bin, HE Lei, LI Liang, SI Xian-zong, SUO Yan-yan

2020, 59(14):  108-111.  doi:10.14088/j.cnki.issn0439-8114.2020.14.021

Asbtract ( 489 )   PDF (1700KB) ( 391 )  

References | Related Articles | Metrics

In order to improve tobacco quality, the comparative test was conducted in Luoning county and Biyang county of Henan province to study the effects of foliar spraying of different regulators （chitosan oligosaccharide, xylo-oligosaccharide, potassium dihydrogen phosphate, potassium nitrate, fulvic acid potassium salt） on quality of tobacco leaves. The results showed that, compared with CK, except treatment T6（fulvic acid potassium salt） in Luoning county, foliar spraying of different regulators promoted leaf development and increased leaf area. Compared with CK in both testing points, foliar spraying of different regulators increased the yield but the differences were not significant. The output value of Luoning county and Biyang county increased by 2.4%~20.2% and 6.6%~20.6%,respectively. The average price and high grade leaf proportion of treatment T4（potassium dihydrogen phosphate） were highest in the two testing points. Compared with CK, the potassium content of middle leaves with regulator application were increased and the potassium content of treatment T4 were highest in the two testing points. The nicotine and chlorine content of regulator application treatments decreased while the potassium content increased. The potassium content of cured leaves with treatment T3（xylo-oligosaccharides） were highest in the two testing points and the potassium content were 1.99% and 2.15%, respectively. Foliar spraying of different regulators could increase leaf area, yield, output value and quality of tobacco leaves. Among different treatments, treatment T3 and treatment T4 were better.

Investigation on the quality of irrigation water in southern Anhui and the influence of metal elements in irrigation water on burned sugar aroma style of tobacco leaves

DONG Xiang-zhou, CHEN Ya-kui, XU Can-ran, ZHU Qi-fa, HUANG Wei-wei

2020, 59(14):  112-116.  doi:10.14088/j.cnki.issn0439-8114.2020.14.022

Asbtract ( 464 )   PDF (1605KB) ( 253 )  

References | Related Articles | Metrics

53 representative areas for tobacco planting in southern Anhui province were selected and the quality of irrigation water, especially the content of metal elements, was investigated. It was found that the content of micro （medium） elements in irrigation water was too low to have a significant effect on the formation of burned sugar aroma style of tobacco leaves. The contents of Mg, Ca and Zn were 0.7~8.0 mg/L, <40 mg/L and 0.002~0.029 mg/L, respectively. The heavy metal content of irrigation water and other basic control items all met corresponding national standards. Furthermore, the experiments on tobacco planting under controlled irrigation using paddy soil in a greenhouse proved that Zn was a negative correlation factor for forming the burned sugar aroma style of tobacco and the threshold value was ≥10 mg/L in irrigation water. Meanwhile, Mg was a positive correlation factor and the content of Mg to promote the burned sugar aroma style should be maintained at 40~90 mg/L. Ca and Mg had synergistic effects, but which was mainly appropriate for acid paddy soils.

Reflections on the high quality development of Xiangyang high fragrant tea industry

LUO Jing-dong, TANG Qian-yong, CHENG Yi-fang, YANG Xiao-juan, YANG Wei, FENG Peng

2020, 59(14):  117-120.  doi:10.14088/j.cnki.issn0439-8114.2020.14.023

Asbtract ( 416 )   PDF (1651KB) ( 773 )  

References | Related Articles | Metrics

The tea production in Xiangyang area has a long history, the tea culture is profound,and the brand influence is constantly enhanced. The advantages, development and problems of the high fragrant tea industry in Xiangyang city were reviewed and the solution countermeasures were proposed pertinently. There were also some unfavorable factors that restricted the development of the high fragrant tea industry such as the low degree of clone breeding, low management level and low processing technology, and the service system was not perfect. It was recommended to find a breakthrough, optimize the structural layout, strengthen talent construction and financial support, concentrate regional brand building, and promote the high-quality and healthy development of the tea industry.

Study on seed breeding and seed growth law of leaf vegetable of Toona sinensis

LI Yue-feng, ZHANG Hong-wei, DONG Hui-hui, ZHANG Ying-zi

2020, 59(14):  121-124.  doi:10.14088/j.cnki.issn0439-8114.2020.14.024

Asbtract ( 470 )   PDF (1697KB) ( 240 )  

References | Related Articles | Metrics

Based on analysis of annual seedling growth experiment of Toona sinensis leaf forest, the Logistic growth curve equation was used to analyze growth law at seedling stage. According to the growth rate of seedling height and ground diameter, the growth of Toona sinensis was divided into four different growth stages, emergence stage, early growth stage, peak growth stage and late growth stage. The results showed that the growth pattern of Toona sinensis leaf at seedling stage was“slow-fast-slow”. The growth was centered on the peak stage. The growth of seedling height accounted for 70.48% of the total growth and the ground diameter accounted for 78.05%.

Animal Science

Fatty acid composition and feeding habit of fish in the Pearl river from Guangzhou to Humen

ZHANG Ting, XIANG Gang, LONG Sheng-xing

2020, 59(14):  125-132.  doi:10.14088/j.cnki.issn0439-8114.2020.14.025

Asbtract ( 465 )   PDF (4260KB) ( 335 )  

References | Related Articles | Metrics

Fish are important consumers in aquatic ecosystem. Different of fish species were collected form the Pearl river, and the fatty acid content of fish were determined in order to understand characteristic of feeding habits. The results showed that Tilapia zillii, Cirrhinus molitorella, Hypostomus plecostomus, Cyprinus carpio, Hypophthalmichthys molitrix, Squliobarbus curriculus, Carassius auratus, Parabramis pekinensis, Odontamblyopus rubicundus, Chaeturichthys stigmatias, Coilia grayi and Lateolabrax maculatus are main common species in the river. The main fatty acids in fish including saturated fatty acids C14∶0、C15∶0、C16∶0、C17∶0、C18∶0, monounsaturated fatty acids C16∶1ω7、C18∶1ω9、C20∶1ω11, polyunsaturated fatty acids C18∶2ω6、C16∶3ω3、C20∶2ω6、C20∶4ω6、C20∶5ω3和C22∶6ω3. Saturated fatty acids concentration in fish changed from 1 001.49 to 97 634.47 μg/g, with average 33 044.02 μg/g, monounsaturated fatty acids concentration in fish changed from 1 161.09~170 924.8 μg/g, with average 33 044.02 μg/g, and polysaturated fatty acids concentration in fish changed from 859.99~98 269.52 μg/g, with average 23 846.78 μg/g. Fatty acid biomarkers showed that Clarias fuscus, Erythroculter pseudobrevicauda, Clarias lazera, Channa maculate, Channa asiatica, Collichthys lucidus, Lateolabrax maculatus, Cynoglossus joyneri, Squliobarbus curriculus, Carassius auratus, Aristichthys nobilis, Coilia grayi, Mugil cephalus, Anguilla japonica, Hypophthalmichthys molitrix, Misgurnus anguillicaudatus, Tilapia zilliimainly feed on attachments, benthic organisms, zooplankton and phytoplankton, and their carnivorous characteristics increase with body weight increasing.

Annual observation on growth and life habit of adult Andrias davidianus in Qiannan region

CHEN Lin, XIONG Hong-lin, YU Zhi-wen, WEN Di, HUANG Xiao-na

2020, 59(14):  133-136.  doi:10.14088/j.cnki.issn0439-8114.2020.14.026

Asbtract ( 575 )   PDF (1973KB) ( 316 )  

References | Related Articles | Metrics

The feeding experiment on AdultsAndrias davidianusin Qiannan region lasted for 14 months and the results were as follows： Growth of body length and one of body mass were both different procedures and the obvious reverse relation existed in the both procedures. Positive relation existed between growth of body length and water temperature. The relation between growth of body mass and water temperature was complex and this kind of growth was confined by high and low temperature. Andrias davidianus liked dark and quiet conditions and had a wide diet. The more it defecated, the more it ate. The faeces looked like masslike or sandlike. Andrias davidianus had the habit of molting and the relation was positive between molting frequency and growth of body mass. The hibernation of Andrias davidianus was seldom observed indoors in Qiannan region and the increasing rate of weight could be effectively promoted by feeding enough bait in the peak growth period. The economic benefits of artificial breedingcould be significantly increased by feeding live carps fed by compound feedwith Pomacea canaliculata.

Effects of photoperiods on activity rhythm of Pteromys volans

TIAN Xin-min, SHA Si-tong, YANG Meng-ping, LIAN Ming-dong, SHI Lan-ying

2020, 59(14):  137-140.  doi:10.14088/j.cnki.issn0439-8114.2020.14.027

Asbtract ( 481 )   PDF (1830KB) ( 522 )  

References | Related Articles | Metrics

The study was about the effects of photoperiods changes on the activity of the flying squirrel in autumn and winter. We studied by using infrared camera video recording and statistical behavior under constant temperature captivity in the laboratory. The result showed that the rhythm of the activity outside the nest of the flying squirrel showed seasonal difference, the rhythm of the activity was affected by the change of photoperiods, and it showed the endogenous rhythm characteristics of the species adapting to the field environment. In autumn and winter, the total activities, feeding and other activities outside the nest of the flying squirrel were trimodal, and affected by the photoperiod, the start and end of winter activity of the flying squirrel were delayed by about 1 h. Among them, the total activities outside the nest and feeding activities in winter were significantly lower than those in autumn. Through analysis, it was concluded that in the cold season （winter）, the flying squirrel still maintains the endogenous characteristics of reducing single activity time and increasing activity frequency in the field, thus reducing energy consumption.

Storage & Processing

Study on development and stability of walnut and peanut compound milk beverage

HAN Xiao-jiang, GUO Yao-dong, WANG Tao

2020, 59(14):  141-144.  doi:10.14088/j.cnki.issn0439-8114.2020.14.028

Asbtract ( 543 )   PDF (1770KB) ( 381 )  

References | Related Articles | Metrics

Using walnut, peanut and skim milk powder as raw materials to research and develop compound beverages, we firstly used the sensory score as the evaluation index by single factor test on the amount of walnut juice added, peanut milk addition, milk addition and sucrose addition. On this basis, three levels of orthogonal optimization and variance analysis were selected. The results showed that the addition of walnut juice was 15%, the amount of peanut milk added was 25%, the amount of milk added was 30%, and the amount of sucrose was 6%. The beverage tastes best and the flavor was good. Under the optimal conditions, sodium alginate, gum arabic and CMC were selected as stabilizers to investigate the stability of the composite beverage. The single factor test and response surface optimization showed that the amount of sodium alginate was 0.024% and the amount of gum arabic was 0.015%, CMC was 0.028%, the precipitation rate reduced to 0.415%.

Study on extraction technology of total flavonoids from Chinese medicine Excoecaria cochinchinensis Lour.

HAN Qian, WEI Jiang-cun, CHEN Yong, LU Jing-rong, LI Jin-zhou, CHEN Zi-jun

2020, 59(14):  145-148.  doi:10.14088/j.cnki.issn0439-8114.2020.14.029

Asbtract ( 481 )   PDF (1778KB) ( 604 )  

References | Related Articles | Metrics

The total flavonoids of Excoecaria cochinchinensis Lour. were extracted by reflux extraction method. The effects of extraction method, extraction solvent volume fraction, extraction volume and extraction time on the total flavonoid extraction rate of the medicinal materials were investigated by single factor experiment. The orthogonal test was used to optimize the extraction conditions. The best extraction process for a total flavonoid of Excoecaria cochinchinensis Lour. was screened out. The result showed that the optimal extraction process of a total flavonoid of Excoecaria cochinchinensis Lour. was 70% methanol, the ratio of material to liquid was 1∶40（g∶mL）, and the reflux extraction time was 1.0 h. This method can effectively determine the content of total flavonoids in Excoecaria cochinchinensis Lour. The repeatability was good, the method was stable and feasible.

Comparison of the sunscreen effect of 18 edible and medicinal plants

WEN Yan, WANG Xing, GAO Pan-qi, XU Jian-rong, CHEN Hong-ying

2020, 59(14):  149-152.  doi:10.14088/j.cnki.issn0439-8114.2020.14.030

Asbtract ( 590 )   PDF (1621KB) ( 643 )  

References | Related Articles | Metrics

In order to screen the natural raw materials of sunscreen, 18 natural medicine plants were selected for sun protection analysis. The antioxidant capacity, ultraviolet light absorption capacity and tyrosinase inhibition activities of the materials were compared. The results showed that Rosae rugosae flos, Eugenia caryophyllata Thunb., Ilex latifolia Thunb. and green tea had strong scavenging activity of free radical. The IC₅₀ of their extracting solution were 35.00, 65.00, 60.00 and 42.00 μg/mL, respectively. When the concentration of ethanol extracting solution was 0.2 mg/mL, Pueraria lobatae radix., Rosae rugosae flos, Coptis chinensis Franch., Ilex latifolia Thunb. and Eugenia caryophyllata Thunb. had a larger absorption value in the ultraviolet medium wave region, and the absorption value decreased successively. The absorption value of Coptis chinensis Franch., Ilex latifolia Thunb., Curcuma Longa Rhizoma., Rosae rugosae flos, Reynoutria japonica Houtt., Sophora japonica L. and Eugenia caryophyllata Thunb in the ultraviolet long wave region were relatively large, and the absorption was decreased successively. The average inhibition rate of Polygoni cuspidati rhizoma, Reynoutria japonica Houtt., Rhodiolae crenulatae radix, green tea, Zanthoxyli pericarpimum, the seed of Vitis vinifera L., Rosae rugosae flos, Sophora japonica L. and Ilex latifolia Thunb. on tyrosinase activity decreased in turn.

Detection Analysis

Nutrient composition analysis of five kinds of wild edible ferns in Yunnan

YANG Xi, YUE Jian-wei, SU Cui, MENG Zhen-cheng, CHEN Hong-jie

2020, 59(14):  153-155.  doi:10.14088/j.cnki.issn0439-8114.2020.14.031

Asbtract ( 537 )   PDF (1644KB) ( 580 )  

References | Related Articles | Metrics

The components of 5 species of wild edible ferns in southeast Yunnan were analyzed： Callipteris esculenta, Pteridium aquilinum, Allantodia dilatata, Pteridium revolutum and Tectaria decurrens. The results showed that the contents of protein, soluble sugar, crude fiber and crude fat were 20.04%~32.72%, 1.24%~12.63%, 11.26%~24.68% and 0.54%~1.05% respectively. The content of potassium was 3 163~4 610 mg/100 g, the content of magnesium was 316~377 mg/100 g, the content of calcium was 125~350 mg/100 g, the content of iron was 5.589~8.309 mg/100 g, and the content of manganese was 3.578~10.420 mg/100 g. The content of protein, crude fiber, potassium, magnesium and manganese was much higher than that of green leafy vegetables, while the content of calcium and iron was lower than that of cabbage and spinach in the control group. In addition, five kinds of determination samples contained citric acid, succinic acid, fumaric acid and other organic acids, among which Pteridium aquilinum, Pteridium revolutum and Tectaria decurrens also contained a small amount of tartaric acid, which provided scientific basis and basic data for the development and utilization of wild ferns in the future.

Extraction separation and determination of kaempferol in Camellia euphlebia Merr.ex Sealy

CHEN Qiu-hong, LIU Peng, WEI Ying-liang, LIU Bu-ming, HUANG Yan, MO Jian-guang

2020, 59(14):  156-158.  doi:10.14088/j.cnki.issn0439-8114.2020.14.032

Asbtract ( 436 )   PDF (1611KB) ( 329 )  

References | Related Articles | Metrics

Solvent extraction method was used to extract and separate the ethyl acetate part of dried leaves of Camellia euphlebia Merr.ex Sealy, and determine its content. The results showed that the compound kaempferol was first isolated from the ethyl acetate part of Camellia euphlebia Merr.ex Sealy; the content determination method of kaempferol in Camellia euphlebia Merr.ex Sealy was established by HPLC. The kaempferol ranged from 0.10 to 0.40 μg/mL. The internal linear relationship was good, the average recovery rate was 99.84% （RSD=1.59%）, and the measured content of kaempferol was 0.318 2~0.364 0 mg/g.

Analysis of volatile components in folium isatidis and radix isatidis by HS-SPME-GC-MS

TIAN Yu, JIANG Han-mei, HAN Man, CAI Meng-ying

2020, 59(14):  159-161.  doi:10.14088/j.cnki.issn0439-8114.2020.14.033

Asbtract ( 467 )   PDF (1682KB) ( 221 )  

References | Related Articles | Metrics

The volatile components of folium isatidis and radix isatidis were analyzed and compared by headspace solid phase microextraction （HS-SPME） combined with GC-MS. The relative percentage of each component was calculated by area normalization method. Results showed that 38 peaks were isolated from folium isatidis and 31 components were identified, accounting for 81.58% of the volatile components. 35 peaks were isolated from radix isatidis and 28 components were identified, accounting for 80.00% of the volatile components. There are 16 kinds of volatile components in the two, which account for 48.16% and 48.40% of the total volatile components of folium isatidis and radix isatidis, respectively. There were some differences in the volatile components and content of folium isatidis and radix isatidis, and they have some of the same pharmacological effects.

Information Engineering

Design on automatic poultry house monitoring system based on service discovery

YU Qun, ZHANG Feng-hang, WANG Xiu-li, ZHOU Zhu-nan

2020, 59(14):  162-165.  doi:10.14088/j.cnki.issn0439-8114.2020.14.034

Asbtract ( 420 )   PDF (2161KB) ( 545 )  

References | Related Articles | Metrics

In order to improve the monitoring problem caused by the poor network environment of the poultry house, a scalable, highly available, automatically adjusted poultry house monitoring and adjustment system was designed and developed based on the analysis of the poultry house monitoring data. The standard interface design of historical monitoring data solved the problem that the traditional wireless real-time monitoring service in the production environment was poorly usable, the monitoring station was difficult to expand, and the regulation was too dependent on labor. The test results confirmed that the system design was feasible and realizes the purpose of automation,high quality and intensive farming.

Design of a chestnut autonomic harvesting and husking machine

LIU De-yao, YOU Ying, ZHANG Yu-ting, LIU Shu-guang, TANG Li-juan, YIN Bao-quan

2020, 59(14):  166-169.  doi:10.14088/j.cnki.issn0439-8114.2020.14.035

Asbtract ( 481 )   PDF (1872KB) ( 758 )  

References | Related Articles | Metrics

In order to solve the underlying problems of intensive manual labour, low working efficiency and backward traditional machinery in harvesting and husking process of chestnut production, a chestnut autonomic harvesting and husking machine with Raspberry Pi 3 Model B+ as control core, Arduino as development platform and battery and electric motor as power was designed. The designed chestnut autonomic harvesting and husking machine can realize autonomic track walking in the chestnut orchard by the control system; the harvest of chestnut can be realized by the rotation of bristle brush with high harvesting accuracy; chestnut husk is removed by the extrusion of PTFE hoses driven by the rotation of twin rollers. The whole machine has simple structure and strong practicability, which can provide suggestions for further improving the production efficiency of chestnut.

Research on the biaxial solar energy automatic tracking device based on orthogonalmetering

ZHAO Hui, YANG Zheng-rui, CHEN Zhi-yi

2020, 59(14):  170-172.  doi:10.14088/j.cnki.issn0439-8114.2020.14.036

Asbtract ( 422 )   PDF (2847KB) ( 161 )  

References | Related Articles | Metrics

Based on the research of the biaxial tracking system, the driving mechanism of the biaxial tracking system wasdesigned, and the dynamic characteristics of the driving mechanism of the altitude-angleand azimuth-angle wereanalyzed. The metering module composed of four photoelectric sensors weredesigned, which was the orthogonalmetering module. The control system wascomposed of the single chip microcomputer.The results showed that the orthogonalmetering module and the motors to realize the real-time tracking of the sunlight.

Economy & Management

Study on the relationship between trade opening, technological progress and agricultural economic growth

MA Qian-li

2020, 59(14):  173-178.  doi:10.14088/j.cnki.issn0439-8114.2020.14.037

Asbtract ( 441 )   PDF (2514KB) ( 335 )  

References | Related Articles | Metrics

Based on the sample data from 2000 to 2018 and MS-VAR model, this study analyzed the relationship between trade opening, technological progress and agricultural economic growth. The results showed that, there are two obvious regional systems in the relationship between trade opening, technological progress and agricultural economic growth. At present, the expansion of trade opening can play a great role in promoting agricultural economic growth. The government should make effective use of the development stage of mutual promotion of trade opening, technological progress and agricultural economic growth, so as to ensure the rapid and sustained growth of agricultural economy. Through the transformation probability matrix of regional system, we can find that the relationship between trade opening, technological progress and agricultural economic growth is relatively stable. Therefore, the government should focus on formulating long-term policies to promote agricultural economic growth. From the analysis of impulse response, it can be seen that in the process of transformation from regional system 1 to regional system 2, the impact response of trade opening and technological progress on agricultural economic growth increases gradually. In the current stage, we should focus on the promotion of trade opening and technological progress to promote agricultural economic growth.

Ecological feasibility analysis of the land development projects

HUANG Hong-sheng, ZHANG Hong-tao, ZHONG Hai-yan

2020, 59(14):  179-183.  doi:10.14088/j.cnki.issn0439-8114.2020.14.038

Asbtract ( 419 )   PDF (1623KB) ( 183 )  

References | Related Articles | Metrics

As the main way to supplement cultivated land, land development has important practical significance for realizing cultivated land requisition-compensation balance. In order to prevent ecological degradation during the implementation of the land development projects, it is necessary to carry out the ecological feasibility analysis. In this study, the comprehensive evaluation index system of ecological benefits of the land development projects was established, and the evaluation index weight was determined by the analytic hierarchy process （AHP） method, the comprehensive index of ecological benefits before and after the land development projects was calculated according to the comprehensive evaluation model so as to analyze the ecological feasibility. Taking the land development projects in Fengxin county of Jiangxi province as an example, after the quantification and standardization of 11 evaluation indexes, the comprehensive index of ecological benefits before the implementation of the land development projects is 100, and after is 73.91. The results showed that, the ecological degradation during the implementation process of the land development projects, and put forward corresponding governance measures to provide basis for the implementation of the land development projects decision-making.

Research on big data high-speed railway tourism effect based on coupling model：Take Baoji city as an example

HU Ke-ke, WAN Hong-lian, MAO Nan, CUI Shu-han, CHEN Xiao-xin

2020, 59(14):  184-188.  doi:10.14088/j.cnki.issn0439-8114.2020.14.039

Asbtract ( 526 )   PDF (1818KB) ( 373 )  

References | Related Articles | Metrics

Taking Baoji city in Shaanxi province as the research area, the coupling model of data processing was established by means of range standardization and entropy method, to explore the coupling coordination relationship between the development level of big data and high-speed railway tourism, and analyze the impact of big data and high-speed railway on tourist destinations development. The results showed that in the context of the development of big data from 2013 to 2017, the high-speed railway tourism in Baoji city was on the rise. However, due to the influence of per capita disposable income, high-speed railway lines and big data platform, the comprehensive development present nonlinear changes, and from 2015 to 2016 the coupling degree of the two was on the edge of imbalance, and the coordination degree was moderate.

Study on the relationship between the land use type changes and urbanization level：Take Nanjing city as an example

WANG Lan

2020, 59(14):  189-193.  doi:10.14088/j.cnki.issn0439-8114.2020.14.040

Asbtract ( 379 )   PDF (1877KB) ( 279 )  

References | Related Articles | Metrics

There was a close relationship between the land use type changes and urbanization level. Relevant data of the land use type changes and urbanization level in Nanjing city from 2005 to 2015 were selected, and correlation analysis and regression analysis were used to discuss the relationship between the land use type changes and urbanization level. The results showed that,as the level of urbanization increases, the types of land use also changes. Among them, the area of agricultural land and unused land continues to decrease as the level of urbanization increases, while the area of construction land continues to increase as the level of urbanization increases. The level of urbanization affects the land use type changes. In the process of steady and rapid urbanization, it is necessary to rationally develop and use land, and maintain correct land use planning, in order to provide a theoretical basis for urban rational development and land use.

Rural Revitalization

Research on the problems of family support for the empty nest elderly in rural areas from the perspective of intergenerational relationship：Take H province as an example

CHEN Ji-hua, LU Xin

2020, 59(14):  194-197.  doi:10.14088/j.cnki.issn0439-8114.2020.14.041

Asbtract ( 450 )   PDF (1586KB) ( 531 )  

References | Related Articles | Metrics

Based on the perspective of intergenerational relationship and the 2016 data of Chinese family tracking survey （CFPS）, this study analyzes the current situation and existing problems of the family support for the empty nest elderly in rural areas of H province, summarizes the reasons affecting the intergenerational support for the elderly in rural areas, analyzes and proposes suggestions for improvement.

Study on organizational ecosystem of characteristic towns from the perspective of organizational ecology：Take Longtoushan prickly ash characteristic town as an example

ZHANG Lu

2020, 59(14):  198-202.  doi:10.14088/j.cnki.issn0439-8114.2020.14.042

Asbtract ( 417 )   PDF (1724KB) ( 504 )  

References | Related Articles | Metrics

As the new comprehensive development space platform integrating characteristic industry,social life and cultural construction,characteristic towns realize the maximum industrial development,upgrading and transformation in the well-defined region with new ideas,new mechanisms and new carriers. Therefore, based on the theoretical perspective of organizational ecology to explore the internal composition of the organizational ecosystem of characteristic towns, take Longtoushan prickly ash characteristic town in Hunnan province as the practice case, analysis its internal organizational ecosystem from the inside to the outside of the hierarchical organization, cluster association, combination of reality, and from industry, function and system of the three dimensions to explore the development path and strategy.

Research on the development of rural research tourism products in Huzhou city based on RMP analysis

ZHU Zhi

2020, 59(14):  203-207.  doi:10.14088/j.cnki.issn0439-8114.2020.14.043

Asbtract ( 636 )   PDF (1643KB) ( 843 )  

References | Related Articles | Metrics

The rural tourism resources in Huzhou city were sorted out and classified. Based on the RMP analysis mode of tourism product development theory, the development status of rural research tourism products in Huzhou city was analyzed. According to the characteristics of rural tourism resources in Huzhou city, the development ideas of rural research tourism products were put forward.

The practice, content and experience of 70 years poverty alleviation and development in China

SUN Zhong-gen, CAO Zhi-dong

2020, 59(14):  208-211.  doi:10.14088/j.cnki.issn0439-8114.2020.14.044

Asbtract ( 434 )   PDF (1950KB) ( 299 )  

References | Related Articles | Metrics

Since the founding of the People’s Republic of China 70 years ago, the government has carried out poverty alleviation and development practice in various fields, including industrial poverty alleviation, special poverty alleviation, urban and rural integration, and social security coverage. By sorting out the practice and content of China’s poverty alleviation and development, it is concluded that we should adhere to the concept of “people-oriented”, play a leading role in the system, and constantly summarize and improve the mode. We should adhere to the concept of poverty alleviation through development, consolidate the achievements of poverty alleviation and development, and pay attention to the promotion of poverty alleviation and development experience.

Research on the construction mode of beautiful countryside in Shangluo city under the background of rural revitalization strategy

LIU Long-long, GAO Zhan-hai

2020, 59(14):  212-216.  doi:10.14088/j.cnki.issn0439-8114.2020.14.045

Asbtract ( 481 )   PDF (1591KB) ( 767 )  

References | Related Articles | Metrics

During the 13th Five Year Plan period, Shangluo city of Shaanxi province, based on the advantages of ecology, resources, location, culture, and the brand advantage of “Shangluo is the most beautiful countryside in Qinling”, this study proposed to build the beautiful countryside in Qinling and vigorously develop rural tourism. Based on the analysis of the current situation and model types of beautiful countryside construction in Shangluo city, point out the problems existing in the construction of beautiful countryside in Shangluo city, and put forward three modes of agricultural production, cultural inheritance and leisure tourism, and the key points of construction and development of the three modes.