Effect of organic compost on the community condition of Tibetan alpine grassland

doi:10.14088/j.cnki.issn0439-8114.2022.22.004

HUBEI AGRICULTURAL SCIENCES ›› 2022, Vol. 61 ›› Issue (22): 25-28.doi: 10.14088/j.cnki.issn0439-8114.2022.22.004

• Resource & Environment • Previous Articles Next Articles

Effect of organic compost on the community condition of Tibetan alpine grassland

ZHOU Shu-ming¹, YU Hao-ran², WEI Tian-jiao³, MIAOYan-jun², LI Ping⁴, GUAN Fa-chun³, CUI Yan-ru³, ZHAO Zhi-min⁵, DU Bo-yang²

1. Tibet Power Construction Exploration Institute Engineering Co., Ltd,Lasa 850000,China;
2. Tibet Agriculture and Animal Husbandry University, Linzhi 860000,Tibet,China;
3. Jilin Academy of Agricultural Sciences, Changchun 130033,China;
4. Tibet Zangjia Ecological Science & Technology Development Co., Ltd, Linzhi 860000,Tibet,China;
5. Ningxia Normal University, Guyuan 756000,Ningxia,China

Received:2021-09-24 Online:2022-11-25 Published:2023-01-11

Abstract

Abstract: In order to explore the effects of organic compost application on grass biomass and species diversity during the restoration of degraded grasslands, an experiment was conducted on alpine degraded grasslands in the Nagqu region of the Qinghai-Tibet Plateau with different organic fertilizer application treatments. The experiment was conducted with three treatments of 10 t/hm²（SF1）, 12.5 t/hm² （SF2） and 15.0 t/hm² （SF3） and no fertilizer control. The results showed that all three fertilization treatments were able to increase the total plant density and species number of the community. Compared with the control, SF2 treatment significantly increased Shannon-Wiener diversity index, and Margalef species richness （P<0.05）, and SF3 treatment significantly increased Simpson diversity index （P<0.05）. In addition, the above-ground biomass of community plants under SF1, SF2 and SF3 fertilization treatments was 1.59, 1.79 and 2.30 times that of the control, respectively, all significantly higher than that of the control （P<0.05）. In conclusion, organic compost improved the grass community structure and diversity, and enhanced the net primary productivity of grass, which could be an effective way to restore Tibetan alpine grasslands.

Key words: organic compost, degraded grassland, plant diversity, grassland restoration, alpine grassland, Tibetan

CLC Number:

S812

ZHOU Shu-ming, YU Hao-ran, WEI Tian-jiao, MIAOYan-jun, LI Ping, GUAN Fa-chun, CUI Yan-ru, ZHAO Zhi-min, DU Bo-yang. Effect of organic compost on the community condition of Tibetan alpine grassland[J]. HUBEI AGRICULTURAL SCIENCES, 2022, 61(22): 25-28.

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Effect of organic compost on the community condition of Tibetan alpine grassland

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