首页 | 本学科首页   官方微博 | 高级检索  
   检索      

土壤微生物学特性对土壤健康的指示作用
引用本文:周丽霞,丁明懋.土壤微生物学特性对土壤健康的指示作用[J].生物多样性,2007,15(2):162-171.
作者姓名:周丽霞  丁明懋
作者单位:中国科学院华南植物园,广州,510650
基金项目:国家自然科学基金;中国科学院方向性项目;中国科学院"百人计划"
摘    要:土壤健康是陆地生态系统可持续发展的基础。作者通过概述土壤微生物学特性(土壤微生物群落结构、土壤微生物生物量、土壤酶活性)与土壤质量的关系,阐明了土壤微生物对土壤健康的生物指示功能。研究表明:土壤中细菌、真菌和放线菌的组成及其所占比率在一定程度上反映了土壤的肥力水平:在土壤性质和肥水条件较好的土壤中,细菌所占比率较高。土壤微生物生物量与土壤有机质含量密切相关,而且土壤微生物生物量碳与土壤有机碳的比值(C_(mic):C_(org))和土壤微生物代谢熵(qCO_2)的变化在一定程度上反映了土壤有机碳的利用效率。一般情况下,土壤酶活性高的土壤中,土壤微生物生物量碳、氮含量也高。因此,土壤微生物学特性可以反映土壤质量的变化,并可用作评价土壤健康的生物指标。

关 键 词:土壤微生物群落结构  微生物生物量  土壤健康  生物指示
收稿时间:2006-11-23
修稿时间:2007-01-10

Soil microbial characteristics as bioindicators of soil health
Lixia Zhou,Mingmao Ding.Soil microbial characteristics as bioindicators of soil health[J].Biodiversity Science,2007,15(2):162-171.
Authors:Lixia Zhou  Mingmao Ding
Institution:South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650
Abstract:Soil health is important for the sustainable development of terrestrial ecosystem. In this review, we summarizes the relationship between soil quality and soil microbial characteristics such as soil microbial community structure, soil microbial biomass and soil enzymatic activity in order to illustrate the function of soil microbial characteristics as bio-indicators of soil health. Many studies have showed that the soil nutrient is correlated with the quantity or the composition of bacteria, fungi and actinomycetes in soils. In general, higher ratio of soil bacteria indicates better soil quality and higher soil nutrient content. Soil microbial biomass is closely correlated with soil organic carbon, and the ratios of soil microbial biomass carbon to soil organic carbon(Cmic : Corg) and microbial metabolic quotient (qCO2) reflect the use efficiency of soil organic C. The activity of soil enzymes are positively correlated with soil microbial biomass carbon and nitrogen. Therefore, soil microbial characteristics reflect the changes of soil quality and thus can be used as bio-indicators of soil health.
Keywords:soil microbial community structure  soil microbial biomass  soil health  bio-indicator  
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《生物多样性》浏览原始摘要信息
点击此处可从《生物多样性》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号