气候变化领域集成服务门户(CCPortal): Relative Impact of Climate Change and Grazing on NDVI Changes in Grassland in the Mt. Qomolangma Nature Reserve and Adjacent Regions during 2000-2018

CCPortal

DOI	10.3390/d14030171
	Relative Impact of Climate Change and Grazing on NDVI Changes in Grassland in the Mt. Qomolangma Nature Reserve and Adjacent Regions during 2000-2018
	Zhao, Wanglin; Luo, Tianxiang; Wei, Haijuan; Alamu; Zhang, Lin
通讯作者	Zhang, L (通讯作者)
发表日期	2022
EISSN	1424-2818
卷号	14 期号:3
英文摘要	As the roof of the world, the Mt. Qomolangma National Nature Reserve and adjacent regions have a fragile environment and are very sensitive to global climate change. Based on the MODIS and SPOT remote sensing data during 2000-2018, we aimed to explore the change trend and driving factors of grassland in this area under the dual influence of climate change and human activities. Here, temperature and precipitation data were enrolled as the main indicators of climate change, while the number of livestock at the end of the year was regarded as the key indicator of grazing. The results showed that: (1) during 2000-2018, the grassland NDVI reflected an overall increasing trend, and the impact of precipitation was more significant than those of temperature and grazing at both pixel and county levels; (2) probably due to the large population and high grazing intensity, the grassland NDVI in Tingri County was controlled by both precipitation and grazing. In general, precipitation exerts a greater impact on the NDVI changes since this region is characterized by arid and semiarid climates. In some areas, vegetation growth is simultaneously affected by both grazing and climate factors due to the relatively greater pressure of grazing. In the context of future warming, control of the number of tourists for Mt. Qomolangma, as well as that of livestock in Tingri County, will help improve sustainability development and to reduce the adverse effects of grassland degradation.
关键词	DIFFERENCE VEGETATION INDEX TEMPERATURE VARIABILITY
英文关键词	grazing; alpine shrub steppe; climate change; Mt; Qomolangma Nature Preserve
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Ecology
WOS记录号	WOS:000775376600001
来源期刊	DIVERSITY-BASEL
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260601
推荐引用方式 GB/T 7714	Zhao, Wanglin,Luo, Tianxiang,Wei, Haijuan,et al. Relative Impact of Climate Change and Grazing on NDVI Changes in Grassland in the Mt. Qomolangma Nature Reserve and Adjacent Regions during 2000-2018[J]. 中国科学院青藏高原研究所,2022,14(3).
APA	Zhao, Wanglin,Luo, Tianxiang,Wei, Haijuan,Alamu,&Zhang, Lin.(2022).Relative Impact of Climate Change and Grazing on NDVI Changes in Grassland in the Mt. Qomolangma Nature Reserve and Adjacent Regions during 2000-2018.DIVERSITY-BASEL,14(3).
MLA	Zhao, Wanglin,et al."Relative Impact of Climate Change and Grazing on NDVI Changes in Grassland in the Mt. Qomolangma Nature Reserve and Adjacent Regions during 2000-2018".DIVERSITY-BASEL 14.3(2022).