NDLI: Legume-soil interactions: legume addition enhances the complexity of the soil food web

Content Provider	Springer Nature Link
Author	Zhao, Jie Wang, Xiaoling Wang, Xiaoli Fu, Shenglei
Copyright Year	2014
Abstract	Legumes play significant roles in improving soil fertility and are commonly used to improve net primary productivity (NPP). However, the relationship between legumes and soil food web conditions in forest ecosystems is poorly known. The objective of this work was to address this problem.A shrub legume species, Cassia alata, was planted to the understory layers of mixed-canopy tree plantations in southern China. The effects of legume addition on soil physico-chemical properties and soil nematode community were measured.Legume addition significantly increased soil total nitrogen and tended to increase soil water content and organic carbon at two soil depths both during wet and dry seasons. Legume addition increased the maturity indices and structure index of soil nematodes, which indicated that the presence of legumes enhanced the structure of soil food web. Redundancy analysis revealed that soil physico-chemical properties can explain up to 19.2 % of total variance of soil nematode community represented by functional guilds.Overall, there are significant interactions between legume and soil properties (both physico-chemical and biological properties); and the presence of legumes increases the soil nitrogen and organic contents and remarkably enhances the structure and complexity of the soil food web (i.e., more trophic links and multi-trophic interactions occured). Our findings could provide a better understanding of plant-soil interactions, particularly, the legume-soil interactions.
Starting Page	273
Ending Page	286
Page Count	14
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	385
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer International Publishing
Publisher Date	2014-08-15
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Legume presence Cassia alata Soil nematode Soil physico-chemical properties Ecosystem complexity Ecosystem management Plant Sciences Soil Science & Conservation Plant Physiology Ecology
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

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