气候变化领域集成服务门户(CCPortal): Negative impacts of plant diversity loss on carbon sequestration exacerbate over time in grasslands

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DOI	10.1088/1748-9326/abaf88
	Negative impacts of plant diversity loss on carbon sequestration exacerbate over time in grasslands
	Wang C.; Tang Y.; Li X.; Zhang W.; Zhao C.; Li C.
发表日期	2020
ISSN	17489318
卷号	15 期号:10
英文摘要	Positive relationships between plant species diversity and carbon attributes have been observed in grasslands, but synthesis studies of how plant diversity affects the carbon balance of grasslands and how the response ratio changes over time both remain limited. By conducting a global meta-analysis with 811 paired observations of plant mixtures and monocultures from 83 studies in natural and manipulated grasslands, we investigated the impacts of plant diversity on six carbon attributes, its interaction with experimental duration, and the changes in carbon balance under different plant diversity loss scenarios in the future. We found that the aboveground biomass (AGB), belowground biomass (BGB), total biomass (TB), soil organic carbon (SOC), soil respiration (Rs), and heterotrophic respiration (Rh) significantly increased in the plant mixtures, and the response ratio for all carbon attributes increased logarithmically with species richness. We also found that the response ratio for all carbon attributes except Rs increased linearly with experimental duration. The increase in response ratio of AGB, BGB, TB, and SOC with species richness was more pronounced with the long-term experimental duration. Importantly, our results showed that the declines in carbon sequestration will be exacerbated by different plant diversity loss scenarios in the future. Our meta-analysis revealed that plant diversity loss has ubiquitous negative impacts on multiple carbon attributes in grasslands, underlined the interactive effects of plant diversity loss and experimental duration on carbon attributes, and suggested that the reduction of carbon storage in grasslands following biodiversity loss will be greater in the future. © 2020 The Author(s). Published by IOP Publishing Ltd
英文关键词	Carbon attributes; Complementary effects; Experimental duration; Grasslands; Plant diversity
语种	英语
scopus关键词	Biodiversity; Biomass; Forestry; Mixtures; Aboveground biomass; Belowground biomass; Biodiversity loss; Carbon sequestration; Heterotrophic respiration; Interactive effect; Plant species diversity; Soil organic carbon; Organic carbon; biodiversity; biomass; carbon balance; carbon sequestration; grassland; meta-analysis; plant; soil nutrient; soil respiration; species diversity; species richness
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153664
作者单位	Beijing Research and Development Center for Grasses and Environment, Beijing Academy of Agriculture and Forestry Sciences (BAAFS), No. 9 Shuguang Garden Middle Road, Haidian District, Beijing, 100097, China; School of Life Sciences, Capital Normal University, Beijing, 100048, China
推荐引用方式 GB/T 7714	Wang C.,Tang Y.,Li X.,et al. Negative impacts of plant diversity loss on carbon sequestration exacerbate over time in grasslands[J],2020,15(10).
APA	Wang C.,Tang Y.,Li X.,Zhang W.,Zhao C.,&Li C..(2020).Negative impacts of plant diversity loss on carbon sequestration exacerbate over time in grasslands.Environmental Research Letters,15(10).
MLA	Wang C.,et al."Negative impacts of plant diversity loss on carbon sequestration exacerbate over time in grasslands".Environmental Research Letters 15.10(2020).