Positive relationship between herbaceous layer diversity and the performance of soil biota in a temperate forest
Soil Biology and Biochemistry(2011)
摘要
The current decline in biodiversity is particularly pronounced in the herbaceous layer of forest ecosystems. We explored the relationship between a naturally occurring plant diversity gradient in the understory vegetation of a deciduous forest and several above-and belowground ecosystem processes. We show that particularly soil microbial parameters and microarthropod densities are positively correlated with plant species richness. These results confirm recent findings in grassland ecosystems and highlight the intimate interconnectance between the diversity and functioning of above-and belowground compartments. We conclude that irrespective of a potential causal relationship between plant species richness and belowground processes, it is essential to consider the performance of soil biota in order to understand the relationship between herbaceous layer composition and ecosystem function.
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关键词
Above-and belowground interactions,Biodiversity loss,Ecosystem functioning,Litter decomposition,Soil microarthropods,Soil microorganisms,Understory vegetation
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