Enzyme activities as a component of soil biodiversity: A review

被引:554
作者
Caldwell, BA [1 ]
机构
[1] Oregon State Univ, Dept Forest Sci, Corvallis, OR 97331 USA
关键词
diversity; soil enzymes; nutrient cycles; microbial communities;
D O I
10.1016/j.pedobi.2005.06.003
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Soil enzyme activities are the direct expression of the soil community to metabolic requirements and available nutrients. While the diversity of soil organisms is important, the capacity of soil microbial communities to maintain functional diversity of those critical soil processes through disturbance, stress or succession could ultimately be more important to ecosystem productivity and stability than taxonomic diversity. This review examines selected papers containing soil enzyme data that could be used to distinguish enzyme sources and substrate specificity, at scales within and between major nutrient cycles. Developing approaches to assess soil enzyme functional diversity will increase our understanding of the linkages between resource availability, microbial community structure and function, and ecosystem processes. (c) 2005 Elsevier GmbH. All rights reserved.
引用
收藏
页码:637 / 644
页数:8
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