应用生态学报2011，Vol.22Issue(7)：1717-1724,8.
扎龙季节性湿草甸土壤养分和土壤微生物特性
Spatial distribution patterns of soil nutrients and microbes in seasonal wet meadow in Zhalong wetland
摘要
Abstract
This paper studied the spatial distribution patterns of soil nutrients and biological characteristics and related major affecting factors in seasonal wet meadow in Zhalong wetland.In the meadow, the soil nutrients. microbial communities, and microbial biomass carbon and nitrogen showed an obvious vertical distribution , but the soil enzyme activities had a complicated spatial distribution due to the effects of multi factors.Stepwise linear regression analysis showed that soil microbial biomass carbon and nitrogen had significant positive correlations with soil β-glucosidase,urease, and phosphatase activities ( P＜0.05 ) , soil organic carbon had significant correlations with soil actinomycetes and soil catalase activity ( P＜0.05 ) , soil available K, total N , alkali-hydrolyzable N, and C/N ratio were significantly correlated with soil bacteria ( P＜0.05 ) , actinomycetes ( P＜0.05 ) , β-glucosidase activity ( P＜0.05 ) , and microbial biomass nitrogen ( P ＜0.05 ) , respectively, whereas soil total P and pH had no significant correlations with soil microbial activity (P＞0.05) .Two models, one for soil nutrients evaluation and another for soil microbiological prediction, were constructed by principal component analysis.关键词
湿地/土壤酶活性/土壤微生物生物量/土壤微生物/土壤养分/主成分分析Key words
wetland/ soil enzyme activity/ soil microbial biomass/ soil microorganism/ soil nutrient/ principal component analysis.分类
农业科技引用本文复制引用
马玲,丁新华,顾伟,马伟..扎龙季节性湿草甸土壤养分和土壤微生物特性[J].应用生态学报,2011,22(7):1717-1724,8.基金项目
国家自然科学基金项目(30870394)资助. （30870394）
