阿拉善左旗荒漠草原牛心朴子和变异黄芪的分布调查  

A Survey of Distribution of Cynanchum komarovii and Astragalu svariabilis in Alxa Left Banner

作　　者：郭丽珠[1] 马青成 胡毕斯哈勒图 巴雅尔 何玮[1] 

机构地区：[1]西部资源与现代生物技术省部共建教育部重点实验室/陕西省生物技术重点实验室/西北大学生命科学学院,陕西西安710069 [2]内蒙古阿拉善左旗吉兰泰动物卫生监督站,内蒙古750333 [3]内蒙古阿拉善盟孪井滩生态移民示范区动物卫生防疫监督所,内蒙古750312 [4]内蒙古阿拉善左旗超格图呼热动物卫生监督站,内蒙古750313

出　　处：《中国草地学报》2016年第1期105-110,共6页Chinese Journal of Grassland

基　　金：公益性行业(农业)科研专项"草原主要毒草发生规律与防控技术研究"(201203062);国家自然科学基金(31402133);陕西省教育厅重点实验室科研计划项目(14JS099);陕西省教育厅科学研究专项(14JK1725)资助

摘　　要：2013年和2014年6月,就牛心朴子和变异黄芪在内蒙古阿拉善左旗荒漠草原的分布情况进行实地样方调查,在调查区域共布设了10个样地200个小样方,两年的调查结果表明,变异黄芪在阿左旗荒漠草原的分布面积为0.13万hm2、1.02万hm2,牛心朴子的分布面积为3.95万hm2、4.63万hm2,此结果与之前的调查结果相比有所减少,其原因可能是调查区域气候变化、退牧还草政策的落实以及小范围虫害的发生。分析不同相对多度的牛心朴子和变异黄芪对其群落物种多样性的影响可知,牛心朴子和变异黄芪并没有显著影响群落的物种多样性。The distribution of Cynanchum komarovii and Astragalu svariabilis in Alxa Left Banner was investigated in June,2013 and 2014with quadrat sampling method.There were 10 sample plots in the investigation area,and 200 small quadrats were set totally.In a two-year survey,the results showed that the distribution areas of C.komarovii and A.variabilis were 3.95×104hm2,4.63×104hm2and 0.13×104hm2,1.02×104hm2 respectively,which showed a marked decrease with previous results.This might occur because climate change during the years,and implementation of the＂Returning Grazing-Growing＂policy in local area,and the occurrence of pests on a small scale as well.Through a further analysis,It was showed that the relative abundance of the two poisonous plants hardly influenced the species diversity in the community.

关 键 词：牛心朴子 变异黄芪 分布情况 物种多样性 

分 类 号：S812.5[农业科学—草业科学]