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Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (31): 71-76.doi: 10.11924/j.issn.1000-6850.casb2020-0146

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Effects of the Microhabitat Formed by Introduced Hippophae rhamnoides on Plant Community and Soil in Desert Land of Northwest Sichuan Province

Du Yulong1(), Tu Weiguo1(), Vladimirov Dmitrii2   

  1. 1Sichuan Provincial Academy of Natural Resource Sciences, Sichuan 610015
    2Voronezh State University, Voronezh 394000, Russia
  • Received:2020-06-03 Revised:2020-07-22 Online:2020-11-05 Published:2020-11-20
  • Contact: Tu Weiguo E-mail:5723205@qq.com;wgtu028@163.com

Abstract:

Microhabitat is wildly used to restore deserted ecosystem, but little research has been done on microhabitat restoring alpine-cold desert land. The study set a research in the desert land of northwest Sichuan, Hippophae rhamnoides was introduced from Russia to build single plant and mass plants microhabitat to restore alpine desert. Vegetation types, biodiversity, soil bulk density, water content, pH, organic carbon, total nitrogen, total phosphate, micro biomass carbon, nitrogen and phosphate were studied after three years of formed microhabitats to analyze the effect of microhabitats on vegetation community and soil ecosystem. The results showed that microhabitats increased covers of brush and herb community, mass plants microhabitat enriched biodiversity of the herb community significantly and the amounts of ecological plants, and microhabitat did not change the dominate species of herb community. Microhabitat did not influence soil bulk density, pH and soil water content. Mass plants microhabitat increased soil organic to 5.55 g/kg, total nitrogen to 0.35 g/kg and total phosphate to 0.69 g/kg, and increased soil microbial biomass. However, the soil of alpine desert land was still barren and needed a long time to be restored. Thus, mass plants microhabitat formed by H. rhamnoides has a better function of restoring than single plant microhabitat, and could be used to restore alpine-cold desert land.

Key words: alpine-cold desert land, biodiversity, cover of vegetation community, soil nutrient, microbial biomass

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