Vertebrate herbivore-induced changes in plants and soils: linkages to ecosystem functioning in a semi-arid steppe

doi:10.1111/1365-2435.12027

	Vertebrate herbivore-induced changes in plants and soils: linkages to ecosystem functioning in a semi-arid steppe
	Chen, Dima ; Zheng, Shuxia ; Shan, Yumei ; Taube, Friedhelm 1; Bai, Yongfei
	2013
发表期刊	FUNCTIONAL ECOLOGY
ISSN	0269-8463
卷号	27 期号:1 页码:273-281
摘要	Large grazing herbivores have been reported to determine the structure and function of grassland ecosystems. However, the ecological linkages between structure and functioning components have yet been thoroughly explored. Here, we test the hypothesis of the impact of grazing on soil nematode community (e.g. structure and composition) and linkages to ecosystem functioning (e.g. soil N mineralization and ANPP) via changes in pathways of plant community, soil nutrients and soil environment using a field experiment maintained for 5years with seven levels of grazing intensity in the Inner Mongolian grassland. A structural equation model (SEM) with nematode abundances as response variables showed that plant-feeding and fungal-feeding nematodes were driven by changes in the plant community, and bacterial-feeding nematodes were affected by soil abiotic nutrients and environment, while omnivorous+carnivorous nematodes were altered by soil environment and bacterial-feeding nematodes. This indicates that the top-down control by grazing leads to bottom-up control in the soil food web. We found that grazing affected the ecosystem functioning via different pathways. Grazing effects soil N mineralization by changing plant community, soil nutrients, soil environment and nematodes community structure, while it affects ANPP by altering soil N mineralization and soil environment. Our findings could provide a better understanding of the responses of plants and soils to grazing and the linkages between structure and functioning of above-ground and below-ground in the semi-arid steppe.
关键词	grazing intensity N mineralization plant community soil fauna trophic groups
学科领域	Ecology
DOI	10.1111/1365-2435.12027
收录类别	SCI
语种	英语
WOS关键词	INNER-MONGOLIA ; NITROGEN MINERALIZATION ; NEMATODE COMMUNITIES ; DIVERSITY ; BIODIVERSITY ; MANAGEMENT ; FERTILITY ; FORESTS ; PH
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000314166500029
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1365-2435
资助机构	State Key Basic Research Development Program of China ; Natural Science Foundation of China(National Natural Science Foundation of China (NSFC))
作者邮箱	Chen, Dima/H-4060-2013
引用统计	被引频次：72[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/28060
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Kiel, Inst Crop Sci & Plant Breeding Grass & Forage Sci, D-24118 Kiel, Germany
推荐引用方式 GB/T 7714	Chen, Dima,Zheng, Shuxia,Shan, Yumei,et al. Vertebrate herbivore-induced changes in plants and soils: linkages to ecosystem functioning in a semi-arid steppe[J]. FUNCTIONAL ECOLOGY,2013,27(1):273-281.
APA	Chen, Dima,Zheng, Shuxia,Shan, Yumei,Taube, Friedhelm,&Bai, Yongfei.(2013).Vertebrate herbivore-induced changes in plants and soils: linkages to ecosystem functioning in a semi-arid steppe.FUNCTIONAL ECOLOGY,27(1),273-281.
MLA	Chen, Dima,et al."Vertebrate herbivore-induced changes in plants and soils: linkages to ecosystem functioning in a semi-arid steppe".FUNCTIONAL ECOLOGY 27.1(2013):273-281.

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