摘要
为了深入了解和探讨西藏沙化土地治理区的植物群落的结构类型、组织水平和稳定程度,根据西藏雅鲁藏布江河谷沙地山南市全国防沙治沙综合示范区20个样地的调查资料,分析了西藏山南市全国防沙治沙综合示范区植物群落物种多样性特征。结果表明:西藏山南市全国防沙治沙综合示范区的植物有34种,藏沙蒿(Artemisia wellbyi)、花棒(Hedysarum scoparium)、桑(Morus alba)、沙打旺(Astragalus adsurgens)和沙蒿(Artemisia desertorum)占优势地位。综合示范区固沙植被平均盖度为31.6%±13.1%;平均生长高度为41.2±19.9 cm;平均生长密度为4.6±4.7株·m^(-2)。植物群落物种多样性H指数平均为0.99±0.54;物种多样性D指数平均为2.55±1.37;物种均匀度平均为1.76±0.75。
In order to understand and discuss the structure,organization level and stability about plant communities plant community structure of desertification land control in Tibet,the species diversity is analyzed in Shannan National Comprehensive Demonstration Area for Desertification Control and Prevention in Tibet based on the investigation of 20 sampling plots.The results show that there are 34 species of plants about the Shannan National Comprehensive Demonstration Area of Desertification Control and Prevention in Tibet,among which the dominant species are Artemisia wellbyi,Hedysarum scoparium,Morus alba,Astragalus adsurgens and Artemisia desertorum.In the comprehensive demonstration area,the average coverage,height and density of sand-fixing plants were 31.6%±13.1%,41.2±19.9 cm and 4.6±4.7 plants·m^(-2),respectively;the average of Shannon-Winner species diversity indices was 0.99±0.54,the average of Simpson species diversity index was 2.55±1.37,and the average evenness of species was 1.76±0.75.
作者
常学向
陈怀顺
李志刚
张红萍
Xuexiang Chang;Huaishun Chen;Zhigang Li;Hongping Zhang(Linze Inland River Basin Research Station,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China;Key Laboratory of Ecohydrology of Inland River Basin,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China;Department of Ecology and Agriculture,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China;Department of Desert and Desertification,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China;Farmer Education and Training Work Station of Gansu Province,Lanzhou 730030,China)
出处
《中国沙漠》
CSCD
北大核心
2021年第6期187-194,共8页
Journal of Desert Research
基金
西藏山南市全国防沙治沙综合示范区技术推广试验项目。
关键词
生长状况
物种多样性
植物群落
防沙治沙综合示范区
growth status
species diversity
plants community
desertification control and prevention comprehensive demonstration area
