盐池县四儿滩湿地及其周边植物多样性研究

采用α-多样性指数即Shannon-Wiener指数、Simpson指数、群落均匀度指、和丰富度指数对盐池县四儿滩湿地周边的植被与盐池县天然草场、人工封育区和撂荒地的植被进行比较研究,得出湿地周边的植被多样性指数和丰富度指数都大于天然草场,大于撂荒地,人工封育区植被多样性指数最小.均匀度指数撂荒地最大,其次分别是天然草场和湿地,人工封育地均匀度指数最小.

Study on Vegetation Diversity of Siertan Wetland and Its Surroundings in Yanchi County

The methods of α-diversity index(including Shannon-Wiener index,Simpson index,community evenness index,abundance index) were used to compare the different vegetation(Siertan wetland and its surroundings,nature grassland,closing region and the leaving and uncultivated land) in Yanchi county.The result shows that the biodiversity index of Siertan wetland and its surroundings is bigger than nature grassland’s and the leaving and uncultivated land’s,the least one is the closing region.The leaving and uncultivated land has the biggest community evenness index,next is nature grassland,Siertan wetland and its surroundings,and the least one also is the closing region.