气候变化领域集成服务门户(CCPortal): Non-climatic component provoked substantial spatiotemporal changes of carbon and water use efficiency on the Mongolian Plateau

CCPortal

DOI	10.1088/1748-9326/ab9692
	Non-climatic component provoked substantial spatiotemporal changes of carbon and water use efficiency on the Mongolian Plateau
	Dong G.; Zhao F.; Chen J.; Zhang Y.; Qu L.; Jiang S.; Ochirbat B.; Chen J.; Xin X.; Shao C.
发表日期	2020
ISSN	17489318
卷号	15 期号:9
英文摘要	Understanding the joint impact of anthropologic and climatic changes on ecosystem function and dynamics is among the frontiers in global environmental change studies. Carbon and water balances are especially crucial to the sustainable ecosystem and functional returns in sensitive regions such as the Mongolian Plateau. In this study, the significance of non-climatic component (NCC) on carbon and water use efficiency (CUE and WUE) is quantified among the ecosystem types on the Mongolian Plateau. We mapped the spatial gradients of carbon/water balance and delineated the hotspots of NCC-driven CUE and WUE for 2000-2013 using gross and net primary production (GPP and NPP) and evapotranspiration (ET) products derived from the MODIS databases. Significantly higher CUE and WUE values were found in Mongolia (MG) than in Inner Mongolia (IM) due to both climatic forcing (CF) and NCC. NCC was found to dominate the changes in CUE and WUE in the steppes on the plateau by over 16% and 22%, respectively, but with spatially uneven distributions. NCC-driven WUE values were much higher than those driven by CF. The hotspots for NCC-driven CUE did not overlap with those of WUE, with CUE hotspots concentrated in the east of MG and northeast of IM; WUE hotspots were found in the central and Khangai regions of MG and eastern regions of IM. The NCC-driven CUE area in MG was from population growth and the industrial shares in gross domestic product, while the NCC-driven WUE area was due to livestock growth in MG but driven by the growth of cultivated lands in IM. In sum, we conclude that NCC provoked substantial spatiotemporal changes on carbon and water use. CF and NCC effects on carbon and water balance varied in space, by ecosystem type, and between the two political entities. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	carbon use efficiency; dryland; grassland; Mongolian Plateau; social-ecological systems (SES); water use efficiency
语种	英语
scopus关键词	Agriculture; Ecosystems; Efficiency; Population statistics; Water supply; Ecosystem functions; Global environmental change; Gross domestic products; Net primary production; Spatial gradients; Spatio-temporal changes; Sustainable ecosystems; Water use efficiency; Carbon; climate forcing; evapotranspiration; MODIS; net primary production; nutrient use efficiency; spatiotemporal analysis; water use efficiency; Mongolian Plateau
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/153757
作者单位	School of Life Science, Shanxi University, Taiyuan, 030006, China; National Hulunber Grassland Ecosystem Observation and Research Station, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China; Institute of Loess Plateau, Shanxi University, Taiyuan, 030006, China; Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Department of Geography, Environment and Spatial Sciences, Michigan State University, East Lansing, 48824, United States; School of Forestry and Wildlife Sciences, Auburn University, Auburn, 36849, United States; Forestry Post-Doctoral Station, Forest Ecology Stable Isotope Center, Forestry College, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Key Laboratory of Vegetation Ecology, Ministry of Education, Northeast Normal University, Changchun, 130024, China; Institute of Geography, Mongolian Academy of Scien...
推荐引用方式 GB/T 7714	Dong G.,Zhao F.,Chen J.,et al. Non-climatic component provoked substantial spatiotemporal changes of carbon and water use efficiency on the Mongolian Plateau[J],2020,15(9).
APA	Dong G..,Zhao F..,Chen J..,Zhang Y..,Qu L..,...&Shao C..(2020).Non-climatic component provoked substantial spatiotemporal changes of carbon and water use efficiency on the Mongolian Plateau.Environmental Research Letters,15(9).
MLA	Dong G.,et al."Non-climatic component provoked substantial spatiotemporal changes of carbon and water use efficiency on the Mongolian Plateau".Environmental Research Letters 15.9(2020).