干旱区生态环境知识资源中心(Arid): Effects of climate change on lake area and vegetation cover over the past 55 years in Northeast Inner Mongolia grassland, China

Arid

DOI	10.1007/s00704-019-02802-2
	Effects of climate change on lake area and vegetation cover over the past 55 years in Northeast Inner Mongolia grassland, China
	Zhang, Yanfei; Liang, Wentao; Liao, Zilong; Han, Zhenhua; Xu, Xiaomin; Jiao, Rui; Liu, Hualin
通讯作者	Zhang, Yanfei
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
ISSN	0177-798X
EISSN	1434-4483
出版年	2019
卷号	138 期号:1-2 页码:13-25
英文摘要	Previous studies indicate that vegetation and lakes in arid and semi-arid regions are closely related to climate change. However, the responses of vegetation and lakes to climate-related variables have rarely been contrastively studied. The Hulun Lake (HLL) and its surrounding grasslands in Northeast Inner Mongolia of China comprise a semi-arid region that has experienced intense climate change over the last several decades. This study aims to understand the key factors that control the variations in the lake area and vegetation cover over the last five decades in the HLL region, as well as contrastively investigate the different responses of the lake area and vegetation cover to climate-related variables. Analysis results indicate that the variations with increasing change rates in the HLL area were mainly controlled by precipitation fluctuation. Moreover, an increase or decrease in the air temperature and relative humidity could affect the response time of the HLL area to the change in precipitation. The Normalized Difference Vegetation Index (NDVI) variations from 1990 to 1999 around the HLL region were mainly controlled by the intense local grazing rather than climatic restrictions. The fluctuation in NDVI after 1999 reflects the response of the vegetation cover to climatic change. The correlation analysis shows that the variations in the HLL area were closely related to the multi-year tendency of precipitation amount and to the Standardized Precipitation Evapotranspiration Index (SPEI) with a long timescale. However, NDVI is sensitive to changes in short-term precipitation amount, such as seasonal precipitation, and in SPEI with a monthly timescale. The soil moisture at shallow depths (< 0.1 m) was the key root-zone soil moisture that could influence NDVI, whereas soil moisture at depths of 0.4 to 1.0 m and the HLL area were closely related and had similar responses to climatic change.
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000491945900002
WOS关键词	WATER INDEX NDWI ; HULUN LAKE ; DYNAMICS ; NDVI ; PRECIPITATION ; TEMPERATURE ; RESPONSES ; TRENDS
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
EI主题词	2019-10-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310198
作者单位	Minist Water Resources People S Republ China, Inst Water Resource Pastoral Area, Hohhot 010020, Inner Mongolia, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yanfei,Liang, Wentao,Liao, Zilong,et al. Effects of climate change on lake area and vegetation cover over the past 55 years in Northeast Inner Mongolia grassland, China[J],2019,138(1-2):13-25.
APA	Zhang, Yanfei.,Liang, Wentao.,Liao, Zilong.,Han, Zhenhua.,Xu, Xiaomin.,...&Liu, Hualin.(2019).Effects of climate change on lake area and vegetation cover over the past 55 years in Northeast Inner Mongolia grassland, China.THEORETICAL AND APPLIED CLIMATOLOGY,138(1-2),13-25.
MLA	Zhang, Yanfei,et al."Effects of climate change on lake area and vegetation cover over the past 55 years in Northeast Inner Mongolia grassland, China".THEORETICAL AND APPLIED CLIMATOLOGY 138.1-2(2019):13-25.