Analysis on stability of plant community under different measures of desertification control in Yanchi County,Ningxia
LEI Xiao-Jie-；Li-Rui-；Zhang-Ke-Bin
College of Soil and Water Conservation,Beijing Forestry University, Key Laboratory of Soil & Water Conservation and Desertification Combating,Ministry of Education,100083,Beijing,China
Abstract：Taking α-diversity index(including Shannon-Wiener index,Simpson index,Jsw,and Js which are community evenness indces) and β-diversity index(measured by similarity coefficients),biomass change coefficient as targets this article analyze the stability of plant community under different measures of desertification control in Yanchi County,Ningxia from two criteria about Space and time.The result indicated: Analyzing based on α-diversity and stability,the plant diversity index and community evenness index of the measure by converting cropland to forests are highest,the change of the indces of the measure about artificial fencing during years is slightest;analyzing from β-diversity and stability,the plant community similarity coefficients of the measure with artificial fencing are highest and the change during years is slightest,so,the plant community is stablest and the stability by converting cropland to forests is inferior to it.Analyzing based on function target,the biomass of years with artificial fencing is biggest,and the change of the biomass by converting cropland to forests is slightest.
卢晓杰；李瑞；张克斌. 宁夏盐池县不同荒漠化治理措施植物群落稳定性分析[J]. 中国水土保持科学, 2008, 6(2): 100-106.
LEI Xiao-Jie-；Li-Rui-；Zhang-Ke-Bin. Analysis on stability of plant community under different measures of desertification control in Yanchi County,Ningxia. SSWCC, 2008, 6(2): 100-106.
2008, Vol. 6 
