Sheep grazing and local community diversity interact to control litter decomposition of dominant species in grassland ecosystem
Sheep grazing and local community diversity interact to control litter decomposition of dominant species in grassland ecosystem
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羊放牧和当地群落多样性相互作用,控制草原生态系统中优势物种的凋落物分解
DOI:
10.1016/j.soilbio.2017.09.003
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发表时间:
2017-12
影响因子:
9.7
通讯作者:
Wang Deli
中科院分区:
文献类型:
--
作者:
Song Xuxin;Wang Ling;Zhao Xuan;Liu Chen;Chang Qing;Wang Ying;Xu Tongtong;Wang Deli
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.
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影响因子:
3.4
作者:
Ling Wang;Deli Wang;Yu-Hong Bai;Guitong Jiang;Jushan Liu;Yue Huang;Yexing Li
通讯作者:
Ling Wang;Deli Wang;Yu-Hong Bai;Guitong Jiang;Jushan Liu;Yue Huang;Yexing Li
影响因子:
4.8
作者:
M. Sankaran;D. Augustine
通讯作者:
M. Sankaran;D. Augustine
影响因子:
5.2
作者:
M. Scherer‐Lorenzen
通讯作者:
M. Scherer‐Lorenzen
影响因子:
3.8
作者:
Feng, Chao;Ding, Shiwen;Peng, Fugang
通讯作者:
Peng, Fugang
影响因子:
4.9
作者:
Haynes, Alan G.;Schuetz, Martin;Risch, Anita C.
通讯作者:
Risch, Anita C.