Rising vegetation activity dominates growing water use ef ficiency in the Asian permafrost region from 1900 to 2100

doi:10.1016/j.scitotenv.2020.139587

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Rising vegetation activity dominates growing water use ef ficiency in the Asian permafrost region from 1900 to 2100
	Yuan, Fenghui 3,4; Liu, Jianzhao ; Zuo, Yunjiang 1; Guo, Ziyu ; Wang, Nannan 1,4,5; Song, Changchun ; Wang, Zongming ; Sun, Li ; Guo, Yuedong ; Song, Yanyu
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2020
卷号	736
关键词	Climate change CMIP6 Earth system model Siberia WUE
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2020.139587
文献子类	Article
英文摘要	Permafrost play an important role in regulating global climate system. We analyzed the gross primary productivity (GPP), net primary productivity (NPP), and evapotranspiration (ET) derived from MODIS and three earth system models participated in the Coupled Model Inter-comparison Project Phase 6 (CMIP6) in the Asian permafrost region. The water use efficiency (WUE) was further computed. The simulated GPP, NPP, and ET show slightly increasing trends during historical period (19002014) and strong increasing trends in projection period (20152100), and projected impacts of climate change on all variables are greater under high-emission scenarios than low-emission scenarios. Further analysis revealed higher increases in GPP and NPP than that of ET, indicating that vegetation carbon sequestration governs the growing WUE under historical and projected periods in this region. The GPP, NPP and ET showed higher changing rates in western, central and southeast areas of this region, and WUE (WUEGPP, and WUENPP) shows the similar spatial pattern. Compared to MODIS-derived GPP, NPP, and ET during 20002014, Earth system models yield the best estimates for NPP, while slight underestimations for GPP and ET, and thus slight overestimations for WUEGPP and WUENPP. This study highlights the predominant role of vegetation activity in regulating regional WUE in Asian permafrost region under future climate change. Vegetation domination of the growing water use efficiency implies that the permafrost region may continue acting efficiently in sequestrating atmospheric carbon in terms of water consumption throughout the 21st century.
学科主题	Environmental Sciences
电子版国际标准刊号	1879-1026
出版地	AMSTERDAM
WOS关键词	NET PRIMARY PRODUCTION ; GLOBAL TERRESTRIAL EVAPOTRANSPIRATION ; GROSS PRIMARY PRODUCTIVITY ; RECENT CLIMATE-CHANGE ; USE EFFICIENCY ; METHANE PRODUCTION ; CARBON-CYCLE ; NITROGEN LIMITATION ; NORTHERN ALASKA ; CO2 ENRICHMENT
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000542086100002
资助机构	National Key RD Program [2016YFA0602303] ; Top Notch program ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41730643, 31971728] ; San Diego State University and Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/21707]
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Peoples R China 4.Chinese Acad Sci, Inst Appl Ecol, Key Lab Forest Ecol & Management, Shenyang 110016, Peoples R China 5.San Diego State Univ, Biol Dept, San Diego, CA 92182 USA
推荐引用方式 GB/T 7714	Yuan, Fenghui,Liu, Jianzhao,Zuo, Yunjiang,et al. Rising vegetation activity dominates growing water use ef ficiency in the Asian permafrost region from 1900 to 2100[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,736.
APA	Yuan, Fenghui.,Liu, Jianzhao.,Zuo, Yunjiang.,Guo, Ziyu.,Wang, Nannan.,...&Xu, Xiaofeng.(2020).Rising vegetation activity dominates growing water use ef ficiency in the Asian permafrost region from 1900 to 2100.SCIENCE OF THE TOTAL ENVIRONMENT,736.
MLA	Yuan, Fenghui,et al."Rising vegetation activity dominates growing water use ef ficiency in the Asian permafrost region from 1900 to 2100".SCIENCE OF THE TOTAL ENVIRONMENT 736(2020).