摘要
在对山西省临汾市小飞蓬群落进行样地调查和土壤取样分析的基础上,运用物种多样性指数对小飞蓬群落特征进行测定,并通过相关分析,对各指数与土壤因子的关系进行了研究.结果表明:(1)研究区内共发现植物43种,隶属19科36属,其中以菊科植物最多,占总数的41.86%;除小飞蓬外,葎草的分布频率最高,达56.67%.(2)研究区内土壤有机质、全磷在不同样地间的差异大部分达到显著水平.土壤养分具有比较明显的空间分布中度不均的特点.(3)研究区Simpson指数、Shannon-Wiener指数均与土壤有机质含量呈显著负相关,生物多样性指数与速效磷的关系不显著.
Based on sample-plot survey and soil sampling analysis for community characteristics of Conyza Canadensis in Linfen,the community characteristics of Conyza Canadensis were determined using index of species diversity. And then by correlation analysis,the relationship between the biodiversity indices and soil factors was studied. The results showed that（ 1） there were 43 kinds of plants belonging to 19 families and 32 genera in the study area,among them,Compositae plants were the most,accounting for 41. 86 % of the total. In addition to Conyza Canadensis,the distribution frequency of Humulus japonicas is highest,up to56. 67 %.（ 2） Most of the differences between sample-plots in soil organic matter content and total phosphorus content was significant,the soil nutrients are characterized by apparent moderate nonuniform spatial distribution. The spatial distribution characteristic of soil nutrient was uneven moderately.（ 3） There was a negative correlation between the Simpson index and Shannon-Wiener index and soil organic matter content,and no significant relationship between the biodiversity index and available phosphorus.
作者
侯涛
庞春花
刘丽雯
HOU Tao PANG Chun-hua LIU Li-wen(College of Life Scietwe ,Shanxi Normal University,Linfen 041000 ,Shanxi, China)
出处
《山西师范大学学报（自然科学版）》
2017年第1期84-88,共5页
Journal of Shanxi Normal University(Natural Science Edition)
基金
山西省软科学研究项目(2012041015-01)
山西师范大学科技开发与应用基金项目(YK1402)
关键词
小飞蓬
群落特征
土壤因子
Conyza Canadensis
community characteristics
soil factors
