Divergent negative spring vegetation and summer runoff patterns and their driving mechanisms in natural ecosystems of northern latitudes

doi:10.1016/j.jhydrol.2020.125848

	Divergent negative spring vegetation and summer runoff patterns and their driving mechanisms in natural ecosystems of northern latitudes
	Zhou, Xinyao 1,3; Zhang, Yongqiang 1; Beck, Hylke E.2; Yang, Yonghui 3
刊名	JOURNAL OF HYDROLOGY
	2021
卷号	592 页码:13
关键词	Vegetation-runoff pattern Northern Hemisphere Underlying mechanism Arctic amplification Hydrological process
ISSN号	0022-1694
DOI	10.1016/j.jhydrol.2020.125848
通讯作者	Zhang, Yongqiang(zhangyq@igsnrr.ac.cn)
英文摘要	The reported wide change in natural vegetation growth in the Northern Hemisphere could have altered hydrological cycles in the past 30 years. However, it is hard to understand the underlying mechanisms for substantial variations in the magnitude and direction of runoff response to vegetation change. Models fail to clearly identify the underlying mechanisms due to limitations in accommodating all the driving factors of the extremely complex reality. This study used a data-driven approach to determine the linkages between Normalized Difference Vegetation Index (NDVI) and runoff in the spring and summer seasons of 1982-2015 in 3600 + northern mid/high-latitude (>= 30 degrees N) catchments. The results suggested that a significant (p < 0.05) negative correlation existed between spring NDVI and summer runoff in the Rocky Mountains, the Great Lakes region, the northern Scandinavia and the Alps. In the southern Rocky Mountains, there was a significant increase in spring NDVI and a decrease in summer runoff due to loss of snowpack. In the Great Lakes region, significant decrease in spring NDVI was accompanied by increase in summer runoff. Earlier spring onset and consequent withering vegetation in late spring significantly reduced spring NDVI while slightly increased summer runoff in Northern Rocky Mountain. The warmer and wetter winter could have increased spring NDVI owning to better water/energy environment, and insignificantly reduced summer runoff in northern Scandinavia and the Alps. Both anthropogenic warming and Arctic amplification might influence the patterns of vegetation-runoff in the region. Our findings can help improving the understanding on how vegetation change affects runoff and enhancing the forecasting abilities of hydrological models.
资助项目	National Natural Science Foundation of China[41971032] ; CAS Talents Program ; Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences[WL2019004]
WOS关键词	ARCTIC AMPLIFICATION ; SOIL-MOISTURE ; EVAPOTRANSPIRATION ; TRENDS ; CHINA ; PHENOLOGY ; RESPONSES ; VARIANCE ; INCREASE ; GROWTH
WOS研究方向	Engineering ; Geology ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000639844900058
资助机构	National Natural Science Foundation of China ; CAS Talents Program ; Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162523]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhang, Yongqiang
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 2.Princeton Univ, Dept Civil & Environm Engn, Princeton, NJ 08544 USA 3.Chinese Acad Sci, Ctr Agr Resources Res, Inst Genet & Dev Biol, Key Lab Agr Water Resources,Hebei Lab Agr Water S, Shijiazhuang 050021, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Xinyao,Zhang, Yongqiang,Beck, Hylke E.,et al. Divergent negative spring vegetation and summer runoff patterns and their driving mechanisms in natural ecosystems of northern latitudes[J]. JOURNAL OF HYDROLOGY,2021,592:13.
APA	Zhou, Xinyao,Zhang, Yongqiang,Beck, Hylke E.,&Yang, Yonghui.(2021).Divergent negative spring vegetation and summer runoff patterns and their driving mechanisms in natural ecosystems of northern latitudes.JOURNAL OF HYDROLOGY,592,13.
MLA	Zhou, Xinyao,et al."Divergent negative spring vegetation and summer runoff patterns and their driving mechanisms in natural ecosystems of northern latitudes".JOURNAL OF HYDROLOGY 592(2021):13.