Arid
DOI10.1016/j.soilbio.2017.09.003
Sheep grazing and local community diversity interact to control litter decomposition of dominant species in grassland ecosystem
Song, Xuxin1,2; Wang, Ling1,2; Zhao, Xuan1,2; Liu, Chen3; Chang, Qing1,2; Wang, Ying1,2; Xu, Tongtong1,2; Wang, Deli4
通讯作者Wang, Ling
来源期刊SOIL BIOLOGY & BIOCHEMISTRY
ISSN0038-0717
出版年2017
卷号115页码:364-370
英文摘要

Large herbivore grazing, a major land use in grasslands, can constitute a feedback loop with local plant diversity to affect litter decomposition. Here we examined the interactive effects of sheep grazing and local plant community diversity on decomposition of litter of the dominant plant species (Leymus chinensis) in the meadow steppe of China. We found a faster litter decomposition rate in the local species rich communities compared to the local species-poor communities in the absence of sheep grazing. However, in the presence of sheep grazing, the decomposition rate was significantly reduced in the local species-rich communities while increased in the local species-poor communities. Therefore, sheep grazing and local community diversity constituted a negative feedback loop to modify litter decomposition in this grassland ecosystem. The findings of this study indicate one outcome of herbivore grazing could be to homogenize grassland nutrient cycling in space by balancing litter decomposition rate among local communities, which therefore could increase the homogenization of metacommunity structure. Furthermore, reduced local community diversity may slow ecosystem process rates. Our study indicates that sheep grazing, or equivalent, offsets this negative effect of local plant diversity loss on litter decomposition. (C) 2017 Elsevier Ltd. All rights reserved.


英文关键词Herbivore grazing Litter decomposition Metacommunity Microbial biomass Plant diversity
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000414880000039
WOS关键词SOIL MICROBIAL BIOMASS ; PLANT DIVERSITY ; LARGE HERBIVORES ; SONORAN DESERT ; LEAF-LITTER ; DEFOLIATION ; RESPONSES ; CARBON ; PHOTODEGRADATION ; EXUDATION
WOS类目Soil Science
WOS研究方向Agriculture
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/202470
作者单位1.Northeast Normal Univ, Inst Grassland Sci, Changchun 130024, Jilin, Peoples R China;
2.Minist Educ, Key Lab Vegetat Ecol, Changchun 130024, Jilin, Peoples R China;
3.Northwest Polytech Univ, Ctr Ecol & Environm Sci, Xian 710072, Shaanxi, Peoples R China;
4.Northeast Normal Univ, Key Lab Ecol Restorat & Ecosyst Management, Sch Environm, Changchun 130117, Jilin, Peoples R China
推荐引用方式
GB/T 7714
Song, Xuxin,Wang, Ling,Zhao, Xuan,et al. Sheep grazing and local community diversity interact to control litter decomposition of dominant species in grassland ecosystem[J],2017,115:364-370.
APA Song, Xuxin.,Wang, Ling.,Zhao, Xuan.,Liu, Chen.,Chang, Qing.,...&Wang, Deli.(2017).Sheep grazing and local community diversity interact to control litter decomposition of dominant species in grassland ecosystem.SOIL BIOLOGY & BIOCHEMISTRY,115,364-370.
MLA Song, Xuxin,et al."Sheep grazing and local community diversity interact to control litter decomposition of dominant species in grassland ecosystem".SOIL BIOLOGY & BIOCHEMISTRY 115(2017):364-370.
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