Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.scitotenv.2018.02.114 |
Global patterns of extreme drought-induced loss in land primary production: Identifying ecological extremes from rain-use efficiency | |
Du, Ling1; Mikle, Nathaniel1,2; Zou, Zhenhua1; Huang, Yuanyuan1,3; Shi, Zheng1; Jiang, Lifen1; McCarthy, Heather R.1; Liang, Junyi1,4,5; Luo, Yiqi1,6,7 | |
通讯作者 | Luo, Yiqi |
来源期刊 | SCIENCE OF THE TOTAL ENVIRONMENT |
ISSN | 0048-9697 |
EISSN | 1879-1026 |
出版年 | 2018 |
卷号 | 628-629页码:611-620 |
英文摘要 | Quantifying the ecological patterns of loss of ecosystem function in extreme drought is important to understand the carbon exchange between the land and atmosphere. Rain-use efficiency [RUE; gross primary production (GPP)/precipitation] acts as a typical indicator of ecosystem function. In this study, a novel method based on maximum rain-use efficiency (RUEmax) was developed to detect losses of ecosystem function globally. Three global GPP datasets from the MODIS remote sensing data (MOD17), ground upscaling FLUXNET observations (MPIBGC), and process-based model simulations (BESS), and a global gridded precipitation product (CRU) were used to develop annual global RUE datasets for 2001-2011. Large, well-known extreme drought events were detected, e.g. 2003 drought in Europe, 2002 and 2011 drought in the US., and 2010 drought in Russia Our results show that extreme drought-induced loss of ecosystem function could impact 0.9% +/- 0.1% of earth’s vegetated land per year and was mainly distributed in semi-arid regions. The reduced carbon uptake caused by functional loss (0.14 +/- 0.03 PgC/yr) could explain >70% of the interannual variation in GPP in drought-affected areas (p <= 0.001). Our results highlight the impact of ecosystem function loss in semi-arid regions with increasing precipitation variability and dry land expansion expected in the future. (C) 2018 Elsevier B.V. All rights reserved. |
英文关键词 | Extreme drought Ecosystem function Rain-use efficiency GPP Semi-arid regions Interannual variation |
类型 | Article |
语种 | 英语 |
国家 | USA ; France ; Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000432462000064 |
WOS关键词 | NET PRIMARY PRODUCTION ; CLIMATE EXTREMES ; TREE MORTALITY ; REDUCTION ; RESILIENCE ; ECOSYSTEM ; CONVERGENCE ; VARIABILITY ; PERSPECTIVE ; RESISTANCE |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | 清华大学 ; United States Geological Survey |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/213006 |
作者单位 | 1.Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA; 2.US Geol Survey, Northern Rocky Mt Sci Ctr, West Glacier, MT 59936 USA; 3.UVSQ, CNRS, CEA, Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, France; 4.Oak Ridge Natl Lab, Environm Sci Div, Oak Ridge, TN 37830 USA; 5.Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN 37830 USA; 6.Tsinghua Univ, Dept Earth Syst Sci, Beijing 100084, Peoples R China; 7.No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA |
推荐引用方式 GB/T 7714 | Du, Ling,Mikle, Nathaniel,Zou, Zhenhua,et al. Global patterns of extreme drought-induced loss in land primary production: Identifying ecological extremes from rain-use efficiency[J]. 清华大学, United States Geological Survey,2018,628-629:611-620. |
APA | Du, Ling.,Mikle, Nathaniel.,Zou, Zhenhua.,Huang, Yuanyuan.,Shi, Zheng.,...&Luo, Yiqi.(2018).Global patterns of extreme drought-induced loss in land primary production: Identifying ecological extremes from rain-use efficiency.SCIENCE OF THE TOTAL ENVIRONMENT,628-629,611-620. |
MLA | Du, Ling,et al."Global patterns of extreme drought-induced loss in land primary production: Identifying ecological extremes from rain-use efficiency".SCIENCE OF THE TOTAL ENVIRONMENT 628-629(2018):611-620. |
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