淮北平原农田氮磷流失模拟降雨试验研究

doi:10.14088/j.cnki.issn0439-8114.2022.03.009

湖北农业科学 ›› 2022, Vol. 61 ›› Issue (3): 42-46.doi: 10.14088/j.cnki.issn0439-8114.2022.03.009

淮北平原农田氮磷流失模拟降雨试验研究

张淳^1,2, 张郝婕³, 王蕾¹

1.安徽省环境科学研究院安徽省污水处理技术研究重点实验室,合肥 230022;
2.合肥学院生物食品与环境学院,合肥 230601;
3.安徽大学资源与环境工程学院,合肥 230601

收稿日期:2020-10-30 出版日期:2022-02-10 发布日期:2022-03-11
通讯作者: 王蕾（1987-）,女,安徽濉溪人,（电子信箱）33803740@qq.com。
作者简介:张淳（1996-）,男,安徽安庆人,硕士研究生,主要从事水环境污染治理研究,（电话）18326621240（电子信箱）1002827303@qq.com
基金资助:
安徽省省级环保科研项目课题（2015-9）

Experimental study on simulated rainfall of N and P loss from farmland in Huaibei Plain

ZHANG Chun^1,2, ZHANG Hao-jie³, WANG Lei¹

1. Anhui Key Laboratory of Wastewater Treatment Technology, Anhui Academy of Environmental Sciences, Hefei 230022,China;
2. School of Biology,Food and Environment,Hefei University,Hefei 230601,China;
3. College of Resources and Environmental Engineering, Anhui University,Hefei 230601,China

Received:2020-10-30 Online:2022-02-10 Published:2022-03-11

摘要/Abstract

摘要： 以淮北平原农田为研究对象,考察2种类型土壤（砂姜黑土和黄潮土）通过人工降雨试验模拟下渗水量、壤中流TN、TP与土壤类型和土壤深度的相关性,结合野外采样调查分析测定区域水体的氮磷含量指标,分析区域农田氮磷养分流失特征,估算迁移比率。结果表明,壤中流TN、TP含量与土壤类型、土壤深度以及降雨持续时间存在一定的差异性;黄潮土中养分流失表现为P素比N素更易迁移流失,砂姜黑土则表现为N素更易迁移;野外实地采样调查数据表明淮北平原农田氮磷流失基本途径为旱地/农田→小沟→大沟/塘,其中大沟水体中TN、TP含量分别为小沟中含量的80.01%和83.23%,可作为区域主要干流河道农田面源入河系数选取参考。

关键词: 淮北平原, 降雨模拟, 农田面源, 氮磷流失

Abstract: Huaibei Plain farmland was taken as the research object to investigate the correlation between infiltration water, soil flow TN, TP and soil type and soil depth of two types of soil （Shajiang black soil and Yellow tide soil） through artificial rainfall simulation test. Combined with field sampling survey, the nitrogen and phosphorus content index of regional water body was determined, and the characteristics of nitrogen and phosphorus nutrient loss in regional farmland were analyzed, and the transfer ratio was estimated. The results showed that the contents of TN and TP in soil flow were different with soil type, soil depth and rainfall duration; Nutrient loss in Yellow tide soil aquic soil was easier to migrate and lose than N, while that in Shajiang black soil was easier to migrate; Field sampling data showed that the basic way of nitrogen and phosphorus loss in Huaibei Plain was as follows： dry land/farmland→small ditch→big ditch/pond. The contents of TN and TP in big ditch water body were 80.01% and 83.23% of those in small ditch, respectively, which could be used as a reference for selecting the inflow coefficient of farmland non-point source in the main rivers of the region.

Key words: Huaibei Plain, rainfall simulation, farmland non-point source, nitrogen and phosphorus loss

中图分类号:

S146⁺.2

张淳, 张郝婕, 王蕾. 淮北平原农田氮磷流失模拟降雨试验研究[J]. 湖北农业科学, 2022, 61(3): 42-46.

ZHANG Chun, ZHANG Hao-jie, WANG Lei. Experimental study on simulated rainfall of N and P loss from farmland in Huaibei Plain[J]. HUBEI AGRICULTURAL SCIENCES, 2022, 61(3): 42-46.

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淮北平原农田氮磷流失模拟降雨试验研究

Experimental study on simulated rainfall of N and P loss from farmland in Huaibei Plain

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