不同放牧强度对荒漠草原蝗虫群落的影响  

Effects of grazing on grasshopper communities in desert stepp

作　　者：董玮[1,2] 张璞进[1,2] 常虹[1,2] 晔薷罕[1,2] 张晶晶 

机构地区：[1]内蒙古农牧业科学院,呼和浩特010031 [2]中科院内蒙古草业研究中心,呼和浩特010031 [3]满洲里市农业技术推广站,满洲里021400

出　　处：《环境昆虫学报》2013年第5期572-577,共6页Journal of Environmental Entomology

基　　金：国家自然科学基金项目(31201545);国家牧草产业技术体系(CARS-35)

摘　　要：采用无底样框法对四子王旗荒漠草原不同放牧强度下的蝗虫群落进行了取样调查,比较了不同放牧强度下荒漠草原蝗虫群落的丰富度、多样性和均匀度指数及群落中蝗虫种类和数量随季节的动态变化,并对蝗虫种群分布与植物群落特征进行了相关性分析。结果表明,在不同放牧强度下蝗虫的群落结构及时间动态均存在一定差异,说明放牧活动对蝗虫群落结构有明显影响,其中,轻度放牧和重度放牧样地中蝗虫种群总数显著高于其他样地。不同种类的蝗虫群落与放牧强度之间关系表现复杂。We surveyed grasshopper communities on the different grazing pastures in desert steppe by using no-bottom sampling basket. The diversity, richness, uniformity and dynamic changes of grasshopper species were analysed. Moreover, the correlation of grasshopper distribution and plant communities characters was analysed. The study showed grasshopper communities character and dynamic change differed on the different grazing patures which indicated that grazing influenced the grasshopper communities. The grasshopper density was higher than othes grazed area on lightly and heavily grazed pastures. The distributon of different grasshopper species were distinctly different on the different grazing pastures.

关 键 词：荒漠草原 放牧强度 蝗虫群落 多样性 季节动态 

分 类 号：Q968.1[生物学—昆虫学] S433.2[农业科学—农业昆虫与害虫防治]