松嫩平原盐碱化草原土壤理化特性及微生物结构分析  

Physico-Chemical Characteristics and Microbial Composition of Saline-Alkaline Soils in Songnen Plain

作　　者：冯玉杰[1] 张巍[1] 陈桥[1] 马程慧[2] 

机构地区：[1]哈尔滨工业大学环境科学与工程系,哈尔滨150090 [2]东北林业大学植物生理与生态系,哈尔滨150090

出　　处：《土壤》2007年第2期301-305,共5页Soils

摘　　要：以松嫩平原不同程度的典型盐碱化草地及对照土壤为研究对象,考察了土壤的电导率、离子组成、碳素特征及微生物构成等,分析了盐碱地的理化特点及变化规律,并对该地区的盐碱化土壤的分类进行了深入探讨。结果表明,3个区域土壤的理化特征和微生物构成各有其特点,土壤的盐碱化过程伴随着土壤结构和微生物群落的变化;松嫩平原草地是个脆弱的生态系统,必须加强对它的保护和管理。Grasslands typical but different in salinity-alkalinity in the Songnen Plain were selected to study conductivity, ion composition, carbon characteristics and microbial composition of the soils. Results showed that soils in the three different regions varied significantly in physico-chemical characteristics and microbial composition, and that soil structure and microbial communities also varied with the process of salinization of the saline-alkaline soils. It can be concluded that grasslands of the Songnen Plain is a fragile kind of ecosystem that calls for intensive protection and management.

关 键 词：盐碱地 松嫩平原 理化性质 微生物 

分 类 号：S153[农业科学—土壤学]