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hm^(2)、1.02万hm^(2),牛心朴子的分布面积为3.95万hm2、4.63万hm^(2),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 3.95×104hm^(2),4.63×104hm^(2)and 0.13×104hm^(2),1.02×104hm^(2) 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.
作者
郭丽珠
马青成
胡毕斯哈勒图
巴雅尔
何玮
GUO Li-zhu;MA Qing-cheng;Hubisi Haletu;BA Ya-er;HE Wei(Key Laboratory of Resource Biology and Biotechnology in Western China,Ministry of Education,Key Laboratory of Biotechnology in Shaanxi Province,College of Life Science,Northwest University,Xi'an 710069,China;Jilantai Animal Health Supervision Station,Jilantai 750333,China;Luanjingtan Animal Health Supervision Station,Luanjingtan 750312,China;Chaogetuhure Animal Health Supervision Station,Chaogetuhure 750313,China)
出处
《中国草地学报》
CSCD
北大核心
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
关键词
牛心朴子
变异黄芪
分布情况
物种多样性
Cynanchum komarovii
Astragalus variabilis
Distribution
Species diversity
