期刊
GLOBAL CHANGE BIOLOGY
卷 28, 期 1, 页码 140-153出版社
WILEY
DOI: 10.1111/gcb.15917
关键词
agricultural systems; BEF relationships; multifunctionality; multitrophic network; soil biodiversity; soil phylotypes
资金
- National Science Foundation for Excellent Young Scholars of China [42122050]
- National Science Foundation [41830755, 42077222, 41807030]
- National Key Research and Development Program [2016YFD0200306]
Different types of organisms have varying impacts on the relationship between soil biodiversity and ecosystem functions, with soil network complexity playing a key role in enhancing this connection.
Belowground biodiversity supports multiple ecosystem functions and services that humans rely on. However, there is a dearth of studies exploring the determinants of the biodiversity-ecosystem function (BEF) relationships, particularly in intensely managed agricultural ecosystems. Here, we reported significant and positive relationships between soil biodiversity of multiple organism groups and multiple ecosystem functions in 228 agricultural fields, relating to crop yield, nutrient provisioning, element cycling, and pathogen control. The relationships were influenced by the types of organisms that soil phylotypes with larger sizes or at higher trophic levels, for example, invertebrates or protist predators, appeared to exhibit weaker or no BEF relationships when compared to those with smaller sizes or at lower trophic levels, for example, archaea, bacteria, fungi, and protist phototrophs. Particularly, we highlighted the role of soil network complexity, reflected by co-occurrence patterns among multitrophic-level organisms, in enhancing the link between soil biodiversity and ecosystem functions. Our results represent a significant advance in forecasting the impacts of belowground multitrophic organisms on ecosystem functions in agricultural systems, and suggest that soil multitrophic network complexity should be considered a key factor in enhancing ecosystem productivity and sustainability under land-use intensification.
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