岩溶地区不同植物群落土壤主要微生物分布及其特征  

Characteristics and Distribution of Soil Microorganisms in Different Plant Communities of Karst Area

作　　者：蔡雨新[1] 孟广涛[1] 石箭华 尹艾萍[1] 张正海[1] 何慕涵 

机构地区：[1]云南省林业科学院,昆明650204 [2]云南林水环保工程咨询有限公司,昆明650093

出　　处：《中国农学通报》2013年第25期61-64,共4页Chinese Agricultural Science Bulletin

基　　金：国家林业公益性行业科研专项"滇中高原水土保持林稳定高效经营技术试验与示范"(200804019)

摘　　要：为了给岩溶地区土壤中主要微生物是否有利于植物群落的恢复提供一定的理论基础和科学依据,通过比较分析岩溶地区不同植物群落类型土壤中主要微生物分布及其特征,了解土壤中主要微生物的数目及其呼吸强度特征。采用野外调查和室内分析相结合的方法,对滇中岩溶地区华山松次生林、华山松疏林、灌木丛和荒草地4类典型植物群落土壤中的主要微生物含量及特征进行研究。结果表明,随着群落恢复进程的累积,其土壤中养分物质随之增多,其内所含的微生物数目增多,而且三大类微生物群在土壤中数量占其总数的比例各有异同。此外,由于微生物的呼吸对整个土壤呼吸的影响最为强烈,通过其呼吸作用先对碳酸盐岩溶蚀速率造成影响,进而影响岩溶地区土壤中各植物群落类型的恢复进程。Based on the comparison of distribution and characteristics of the soil microbial in different plant communities of Karst area, the author studied the number of the soil microbial and feature of respiration intensity, in order to provide a theoretical foundation and scientific basis about the soil microbial whether it helps plant community in Karst area. By the field investigation and laboratory analysis methods, the author researched the characteristics and distribution of the soil microbial of Pinus armandii secondary forest, Pinus armandii woodland, bush wood and abandoned land in central Yunnan. The results showed that： along with the accumulation of community restoration, the content of nutrients and microorganisms＇ number in soils was increasing. And it was different to proportion of the total number about 3 main types of microorganisms. Besides microbial respiration was the strongest influence on the whole soil respiration, it affected the carbonate Karst erosion rate, and affected the restoration process of plant communities in Karst areas.

关 键 词：微生物 土壤 植物群落 岩溶地区 

分 类 号：S714.2[农业科学—林学]