Teleconnections between Snow Cover Change over Siberia and Crop Growth in Northeast China

doi:10.3390/su12187632

	Teleconnections between Snow Cover Change over Siberia and Crop Growth in Northeast China
	Guan, Cong 1,2,3; Yu, Lingxue 3; Yan, Fengqin 4; Zhang, Shuwen 3
刊名	SUSTAINABILITY
	2020-09-01
卷号	12 期号:18 页码:13
关键词	snow cover changes regional climate vegetation growth Northeast China Siberia
DOI	10.3390/su12187632
通讯作者	Yu, Lingxue(yulingxue@iga.ac.cn)
英文摘要	Snow cover is a sensitive indicator of climate change, and the variations in snow cover can influence the global climate system and terrestrial water cycling. However, the teleconnections between snow cover changes of the northern hemisphere and the crop growth of Northeast China (NEC) are less documented. In this study, we estimated the correlations between spring snow cover area over Siberia (SSCA) and the regional climate, as well as the crop growth in NEC based on both satellite measurement and observational climate records from 1982 to 2015. The local temperature, including minimum temperature (Tmin) in May-June, maximum temperature (Tmax), and Tmin in July-August, showed significant negative correlations with SSCA. SSCA is found to be negatively correlated to rainfall during the beginning of the growing season, while positively correlated to rainfall during the peak growing season for the agricultural ecosystem of NEC. The remote responses of the normalized difference vegetation index (NDVI) to SSCA varied across different climate zones and different growing periods. The NDVI variations over cold and dry cultivated regions exhibit negative correlations with SSCA in May-June, which is opposite for the wetter areas. The negative correlation between NDVI over the agricultural ecosystem and SSCA during the peak growing season was also detected, implying the variations in SSCA might be an essential driving factor in affecting the crop growth through modifying the regional climate of NEC. In the future, more in situ observations and model simulations should be conducted to verify our results described here, which would have significant implications for maintaining regional food security and sustainable development in Northeast China under the changing climate background.
资助项目	National Science and Technology basic Resources Survey Project[2017FY101301] ; National Natural Science Foundation of China[41701493] ; Chinese Academy of Sciences[XDA2003020301]
WOS关键词	CLIMATE-CHANGE ; HEAT-BALANCE ; VARIABILITY ; IMPACTS ; TEMPERATURE ; VEGETATION ; SYSTEM
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
语种	英语
出版者	MDPI
WOS记录号	WOS:000584391900001
资助机构	National Science and Technology basic Resources Survey Project ; National Natural Science Foundation of China ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/156653]
专题	中国科学院地理科学与资源研究所
通讯作者	Yu, Lingxue
作者单位	1.Changchun Inst Technol, Changchun 130012, Peoples R China 2.Jilin Univ, Coll Earth Sci, Changchun 130061, Peoples R China 3.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun 130102, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Guan, Cong,Yu, Lingxue,Yan, Fengqin,et al. Teleconnections between Snow Cover Change over Siberia and Crop Growth in Northeast China[J]. SUSTAINABILITY,2020,12(18):13.
APA	Guan, Cong,Yu, Lingxue,Yan, Fengqin,&Zhang, Shuwen.(2020).Teleconnections between Snow Cover Change over Siberia and Crop Growth in Northeast China.SUSTAINABILITY,12(18),13.
MLA	Guan, Cong,et al."Teleconnections between Snow Cover Change over Siberia and Crop Growth in Northeast China".SUSTAINABILITY 12.18(2020):13.