文献类型： 外文期刊
作者： Wan, Bingbing 1 ; Hu, Zhengkun 1 ; Liu, Ting 1 ; Yang, Qian 1 ; Li, Daming 3 ; Zhang, Chongzhe 1 ; Chen, Xiaoyun 1 ; Hu, Feng 1 ; Kardol, Paul 4 ; Griffiths, Bryan S. 5 ; Liu, Manqiang 1 ;
作者机构： 1.Nanjing Agr Univ, Coll Resources & Environm Sci, Soil Ecol Lab, Nanjing 210095, Peoples R China
2.Jiangsu Collaborat Innovat Ctr Solid Organ Waste, Key Lab Biol Interact & Crop Hlth, Nanjing 210095, Peoples R China
3.Jiangxi Inst Red Soil, Nanchang 331717, Jiangxi, Peoples R China
4.Swedish Univ Agr Sci, Dept Forest Ecol & Management, S-90183 Umea, Sweden
5.SRUC, Dept Agr Hort & Engn Sci, Edinburgh, Midlothian, Scotland
关键词： Soil management; Soil fauna; Soil biodiversity; Soil food web; Energy flux; Subtropical region
期刊名称：SOIL BIOLOGY & BIOCHEMISTRY （ 影响因子：8.546； 五年影响因子：9.956 ）
ISSN： 0038-0717
年卷期： 2022 年 170 卷
页码：
收录情况： SCI
摘要： Energy dynamics within ecological communities are important in delivering ecosystem services. However, it remains elusive how the energy fluxes within soil food webs respond to agricultural fertilization regimes. Here, we studied the effects of long-term organic amendments and mineral fertilizers on the energetic structure of soil nematodes from a food-web perspective. We replicated our experiment in a rice paddy and in an upland maize cropping system. Results showed that the abundance of most trophic groups was higher in organically amended soils compared with mineral fertilizer treatments in both systems. Organic amendments, but not mineral fertilizers, increased the energy flux of total nematodes and most trophic groups compared with the no-fertilizer treatment. Furthermore, organic amendments increased the relative allocation of energy flux to microbivores but decreased the relative allocation to herbivores, supporting a higher flow uniformity than mineral fertilizers. We further found that organic amendments favored a higher total energy flux by supporting a greater nematode diversity, while sustained a higher flow uniformity by altering nematode community composition. Taken together, the result provides the evidence that a complex and species-rich community could transfer more energy to support ecosystem services. A broader perspective on linkages of biodiversity and energy dynamics spanning multitrophic groups is crucial for sustainable management, particularly in the light of non-random species loss under future environmental change.
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