北京大学学报（自然科学版）2017，Vol.53Issue(1)：142-150,9.DOI:10.13209/j.0479-8023.2017.017
我国北方温带草地土壤微生物群落组成及其环境影响因素
Soil Microbial Community Composition and Environmental Controls in Northern Temperate Steppe of China
摘要
Abstract
This study chose meadow steppe, typical steppe, desert steppe, three types of steppes, a total of 13 sampling sites in northern temperate steppe of China, and determined phospholipid fatty acids (PLFAs) composition of soil microbes. Nonmetric multidimensional scaling method was used to analyze the soil microbial community composition. The results showed that microbial community structure significantly differed among three types of steppes. Then, the soil microbial community composition data with 10 kinds of environmental factors were combined to conduct redundancy analysis. 79.87% of the variation of soil microbial community composition was explained. Soil moisture content, soil total carbon, soil total nitrogen could affect the soil microbial community composition of meadow steppe. Soil microbial community composition of typical steppe was closely related to light carbon and nitrogen component of soil. Mean average temperature and soil pH value significantly influenced the soil microbial community composition of desert steppe.关键词
温带草原/土壤微生物群落/磷脂脂肪酸分析Key words
temperate steppe/soil microbial community/phospholipid fatty acid analysis分类
生物科学引用本文复制引用
方圆,王娓,姚晓东,彭晓茜..我国北方温带草地土壤微生物群落组成及其环境影响因素[J].北京大学学报（自然科学版）,2017,53(1):142-150,9.基金项目
科技部重大研究计划(2016YFC0500701,2013CB956303)和国家自然科学基金(31670325,31270363)资助 （2016YFC0500701,2013CB956303）
