Changes in Lake Area in Response to Climatic Forcing in the Endorheic Hongjian Lake Basin, China

doi:10.3390/rs11243046

	Changes in Lake Area in Response to Climatic Forcing in the Endorheic Hongjian Lake Basin, China
	Liang, Kang 1; Li, Yanzhong 2
刊名	REMOTE SENSING
	2019-12-02
卷号	11 期号:24 页码:25
关键词	inland lake wetland nature preserve lake area climate change Relict Gull (Larus relictus) Yellow River Basin Landsat Modified Normalized Difference Water Index (MNDWI)
DOI	10.3390/rs11243046
通讯作者	Liang, Kang(liangk@igsnrr.ac.cn)
英文摘要	Endorheic lakes are key components of the water cycle and the ecological system in endorheic basins. The endorheic Hongjian Lake wetland is China's national nature reserve for protecting the vulnerable species of Relict Gull. The Hongjian Lake, once China's largest desert freshwater lake, has been suffering from severe shrinkage in the last two decades, yet the variations in the lake area and its responses to climate change are poorly understood due to a lack of in situ observations. In this study, using Landsat remote sensing images, the Modified Normalized Difference Water Index, and nonparametric tests, we obtained the Hongjian Lake area changes on the annual, seasonal, and quasi-monthly scales during 1988-2014, analyzed the corresponding variations of the six climatic factors in the Hongjian Lake Basin (HJLB) using satellite-based products, and investigated the multi-scale response characteristics of lake area to climatic forcing using correlation analysis. The results showed that the lake area decreased during 1988-2014, and this process can be divided into two sub-stages, namely the first slight increasing sub-phase in 1988-1999 and the second significant declining sub-phase in 2000-2014. The shifts in patterns of the seasonal cycle had three types: as the natural rhythm of the lake changes has been broken by intensive human activities since the late 1990s, the natural bimodal type I has obviously changed into non-natural bimodal type II and unimodal type III, featured by a declining peak in July-September. The climatic wet/dry regime on multi-scales during 1988-2014 in the HJLB was generally warming and drying, mainly reflected by the increase in temperature (T), arid index (AI) and evaporation (ET0, ETa), and the decrease in the precipitation (Pre) and actual water difference (AWD). There were large differences in the climatic factors at different time scales, especially in the wet and dry seasons. When the lagged effect, the cumulative effect, and the lagged and cumulative combined effect were gradually considered, the correlation coefficient significantly increased, and the direction of the correlation coefficient became coincident with common sense. The correlation analysis identified a lag period of approximately 1-3 years on an annual scale, and a lag period of approximately 1-3 months on a monthly scale. This study could provide a certain scientific reference for climate change detection, water resource management, and species habitat protection in the HJLB and similar endorheic basins or inland arid regions.
资助项目	Program for Bingwei Excellent Talents in Institute of Geographic Sciences and Natural Resources Research ; Chinese Academy of Sciences[2017RC204] ; National Natural Science Foundation of China[41971035] ; National Natural Science Foundation of China[41701019] ; Program for the Youth Innovation Promotion Association of the Chinese Academy of Sciences[2019054]
WOS关键词	YELLOW-RIVER BASIN ; WATER INDEX NDWI ; SATELLITE ; RESERVOIRS ; PRECIPITATION ; VARIABILITY ; EVAPORATION ; ALTIMETRY ; EXTREMES ; DATABASE
WOS研究方向	Remote Sensing
语种	英语
出版者	MDPI
WOS记录号	WOS:000507333400160
资助机构	Program for Bingwei Excellent Talents in Institute of Geographic Sciences and Natural Resources Research ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; Program for the Youth Innovation Promotion Association of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/131414]
专题	中国科学院地理科学与资源研究所
通讯作者	Liang, Kang
作者单位	1.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Nanjing Univ Informat Sci & Technol, Sch Hydrol & Water Resources, Nanjing 210044, Peoples R China
推荐引用方式 GB/T 7714	Liang, Kang,Li, Yanzhong. Changes in Lake Area in Response to Climatic Forcing in the Endorheic Hongjian Lake Basin, China[J]. REMOTE SENSING,2019,11(24):25.
APA	Liang, Kang,&Li, Yanzhong.(2019).Changes in Lake Area in Response to Climatic Forcing in the Endorheic Hongjian Lake Basin, China.REMOTE SENSING,11(24),25.
MLA	Liang, Kang,et al."Changes in Lake Area in Response to Climatic Forcing in the Endorheic Hongjian Lake Basin, China".REMOTE SENSING 11.24(2019):25.