期刊
EUROPEAN JOURNAL OF SOIL SCIENCE
卷 62, 期 1, 页码 105-116出版社
WILEY
DOI: 10.1111/j.1365-2389.2010.01314.x
关键词
-
类别
资金
- US National Science Foundation [DEB 0344834, OPP 0229836]
- Natural Environment Research Council [ceh010010] Funding Source: researchfish
- Emerging Frontiers
- Direct For Biological Sciences [752017] Funding Source: National Science Foundation
- Office of Polar Programs (OPP)
- Directorate For Geosciences [1041742] Funding Source: National Science Foundation
Biodiversity and carbon (C) cycling have been the focus of much research in recent decades, partly because both change as a result of anthropogenic activities that are likely to continue. Soils are extremely species-rich and store approximately 80% of global terrestrial C. Soil organisms play a key role in C dynamics and a loss of species through global changes could influence global C dynamics. Here, we synthesize findings from published studies that have manipulated soil species richness and measured the response in terms of ecosystem functions related to C cycling (such as decomposition, respiration and the abundance or biomass of decomposer biota) to evaluate the impact of biodiversity loss on C dynamics. We grouped studies where one or more biotic groups had been manipulated to include a richness of < 10 species or > 10 species in order to reflect 'low' and 'high' extents of diversity manipulations. There was a positive relationship between species richness and C cycling in 77-100% of low-diversity experiments, even when the richness of just one biotic group was manipulated, whereas positive relationships occurred less frequently in studies with greater richness (35-64%). Moreover, when positive relationships were observed, these often indicated functional redundancy at low extents of diversity or that community composition had a stronger influence on C cycling than did species richness. Initial reductions in soil species richness resulting from global changes are unlikely to alter C dynamics significantly unless particularly influential species are lost. However, changes in community composition, and the loss of species with an ability to facilitate specialized soil processes related to C cycling, as a result of global changes, may have larger impacts on C dynamics.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据