草业学报Issue(2)：87-94,8.DOI:10.11686/cyxb2014404
玛曲高寒草甸高原鼠兔种群数量对植被调控措施的响应
Response of plateau pika burrow density to vegetation management in an alpine mead-ow,Maqu County,Gansu
摘要
Abstract
We analyzed the selection of habitat by plateau pika in degraded alpine meadow in Maqu County through different grassland improvement measures including enclosure,reseeding,fertilization (organic)and cleavage to help reveal aspects of the ecology of plateau pika and to provide theoretical basis for ecologically based management of plateau pika.From May to July 2010,12 different grassland improvement measures were implemented.The density of active pika burrows was estimated using a stolen hole (mousehole)technique,and the selection of habitat by pika assessed.Compared with the control,the density of active pika burrows un-der different treatment measures was significantly reduced (P <0.05).All of the grassland improvement meas-ures,especially reseeding,decreased the density of active burrows.The relationship between active burrow density and community structure was analysed using correlation analysis and stepwise regression analysis;the density of active burrows was significantly,negatively correlated with grass layer height (P <0.05).This sug-gests that grass height is an important factor influencing the density of pika.Using multiple management con-trol factors including reseeding and fertilizer application promoted grass productivity,increasing grass layer height,decreasing active burrow densities (P <0.05).In alpine meadow areas of Maqu,different grassland improvement measures can effectively reduce the density of pika burrows,particularly those which increase the proportion of the grasses in the meadow.关键词
高寒草甸/草地退化/植被调控/高原鼠兔/生境适合度Key words
alpine meadows/grassland degradation/regulated measures of vegetation/plateau pika/habitat fit-ness引用本文复制引用
张永超,袁晓波,牛得草,吴淑娟,张典业,宗文杰,傅华..玛曲高寒草甸高原鼠兔种群数量对植被调控措施的响应[J].草业学报,2016,(2):87-94,8.基金项目
公益性行业（农业）科研专项经费（201203041），“长江学者和创新团队发展计划（IRT13019）”，国家科技支撑项目（2012BAD13B05）和国家自然科学基金（31201837，31172258）资助。 （）
