DOI: 10.1111/gcb.14533
Scopus记录号: 2-s2.0-85058390856
论文题名: Effects of livestock grazing on grassland carbon storage and release override impacts associated with global climate change
作者: Zhou G. ; Luo Q. ; Chen Y. ; He M. ; Zhou L. ; Frank D. ; He Y. ; Fu Y. ; Zhang B. ; Zhou X.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2019
卷: 25, 期: 3 起始页码: 1119
结束页码: 1132
语种: 英语
英文关键词: C-climate feedback
; drought
; elevated CO 2
; increased precipitation
; N fertilization
; soil respiration
; warming
英文摘要: Predicting future carbon (C) dynamics in grassland ecosystems requires knowledge of how grazing and global climate change (e.g., warming, elevated CO 2 , increased precipitation, drought, and N fertilization) interact to influence C storage and release. Here, we synthesized data from 223 grassland studies to quantify the individual and interactive effects of herbivores and climate change on ecosystem C pools and soil respiration (Rs). Our results showed that grazing overrode global climate change factors in regulating grassland C storage and release (i.e., Rs). Specifically, grazing significantly decreased aboveground plant C pool (APCP), belowground plant C pool (BPCP), soil C pool (SCP), and Rs by 19.1%, 6.4%, 3.1%, and 4.6%, respectively, while overall effects of all global climate change factors increased APCP, BPCP, and Rs by 6.5%, 15.3%, and 3.4% but had no significant effect on SCP. However, the combined effects of grazing with global climate change factors also significantly decreased APCP, SCP, and Rs by 4.0%, 4.7%, and 2.7%, respectively but had no effect on BPCP. Most of the interactions between grazing and global climate change factors on APCP, BPCP, SCP, and Rs were additive instead of synergistic or antagonistic. Our findings highlight the dominant effects of grazing on C storage and Rs when compared with the suite of global climate change factors. Therefore, incorporating the dominant effect of herbivore grazing into Earth System Models is necessary to accurately predict climate–grassland feedbacks in the Anthropocene. © 2018 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117495
Appears in Collections: 气候变化与战略
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Recommended Citation:
Zhou G.,Luo Q.,Chen Y.,et al. Effects of livestock grazing on grassland carbon storage and release override impacts associated with global climate change[J]. Global Change Biology,2019-01-01,25(3)