定边荒漠草原蝗虫群落多样性研究  

Study on diversity of locust community in desert steppe in Dingbian County

作　　者：贾立军 

机构地区：[1]榆林农业学校,陕西榆林719000

出　　处：《草原与草坪》2013年第3期78-82,共5页Grassland and Turf

摘　　要：为查明定边县荒漠草原蝗虫区系及物种多样性,采用α和β多样性方法进行研究。结果表明,该区域蝗虫区系由7科、17属、19种组成,单种属和寡种属多是各蝗虫群落组成的共同特点;各蝗虫群落种的丰富度、均匀度及多样性指数变化趋势相同,自大至小排序为:农田蝗虫群落>平沙地荒漠草原蝗虫群落>半流动半固定沙丘荒漠草原蝗虫群落,3个蝗虫群落的生境差异性比较大。The fauna and species diversity of locust in desert steppe and the results showed that the locust fauna in the region was consisted in of Dingbian County were investigated 19 species,15 genera and 7 families, monotypic genus and oligotypic genus were the most common characteristics; the variation trend of species rich ness,evenness,and diversity index in each locus community were same, and the order from high to low was farmland 〉 sandy desert steppe 〉semi-fixed sand dunes. The habitat differences of 3 locus communities was relatively large.

关 键 词：定边 荒漠草原 蝗虫群落 多样性 

分 类 号：S812.6[农业科学—草业科学]