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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (14): 277-281.

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

不同放牧方式对中蒙荒漠草原植被和土壤特性的影响

萨娜斯琴 易津 包秀霞   

  • 收稿日期:2010-01-26 修回日期:2010-03-09 出版日期:2010-07-20 发布日期:2010-07-20
  • 基金资助:
    中蒙国际合作保护草原基金项目

Effect on desert-steppe vegetation and soil characteristics of Different grazing methods on the Sino-Mongolian

  • Received:2010-01-26 Revised:2010-03-09 Online:2010-07-20 Published:2010-07-20

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摘要： 本文对不同放牧方式下荒漠草原植被群落特征与表层土壤理化特性进行比较研究，结果表明：不同放牧方式下建群种和多年生杂草类植被群落高度、盖度、重要值比较结果为：游牧区>定居放牧区。一年生杂草类植物高度、盖度比较结果为：定居放牧区>游牧区；游牧区表层土壤砂土含量、pH值显著低于定居放牧区（P<0.05），中壤土含量显著高于定居放牧区（P<0.05）；游牧区的土壤全氮、速效钾均有极显著高于定居放牧区（P<0.01），游牧区全氮含量高于定居区近3倍。表层土壤全钾比较结果为：定居放牧区>游牧区。

关键词: 皖江地区, 皖江地区, 湿地, 生态服务价值, 评估

Abstract: In this paper, vegetation community structure and surface soil physical and chemical characteristics of desert-steppe under different grazing systems was studied. The results show that the height, cover, importance value of constructive species and perennial weed-type vegetation communities under different grazing systems were nomadic grazing > settled grazing. The Height, Cover of annual weed plants were settled grazing > nomadic grazing; Sand content in topsoil and pH under nomadic grazing was significantly lower than the ones under settled grazing(P<0.05),but that was opposite in the loam content（P<0.05）; Soil total N and available K under nomadic grazing was significantly higher and the total N about 3 times than the ones under settled grazing(P<0.01) . Surface soil total K was settled grazing > nomadic grazing.