干旱区生态环境知识资源中心(Arid): A Model for Estimating the Vegetation Cover in the High-Altitude Wetlands of the Andes (HAWA)

Arid

DOI	10.3390/land8010020
	A Model for Estimating the Vegetation Cover in the High-Altitude Wetlands of the Andes (HAWA)
	Soto, Jorge; Roman-Figueroa, Celian; Paneque, Manuel
通讯作者	Paneque, M (corresponding author), Univ Chile, Fac Agr Sci, Dept Environm Sci & Nat Resources, Santa Rosa 11315, Santiago 8820808, Chile.
来源期刊	LAND
EISSN	2073-445X
出版年	2019
卷号	8 期号:1
英文摘要	The natural salt meadows of Tilopozo in the hyperarid, Atacama Desert of northern Chile, which are located at approximately 2800 m above sea level, are under pressure from industrial activity, and cultivation and grazing by local communities. In this research, the land surface covered by salt meadow vegetation was estimated from normalized difference vegetation indices (NDVI) derived from Landsat Thematic Mapper (TM), Enhanced Thematic Mapper (ETM+) and Operational Land Imager (OLI) data from 1985 to 2016. The vegetated area of the Tilopozo salt meadows decreased by 34 ha over the 32-year period studied. Multiple regression models of the area covered by vegetation and climate data and groundwater depths were derived on an annual basis, as well as for both the dry and wet seasons and had R-2 values of 83.0%, 72.8% and 92.4% respectively between the vegetated areas modeled and those estimated from remotely sensed data. These models are potentially useful tools for studies into the conservation of the Tilopozo salt meadows, as they provide relevant information on the state of vegetation and enable changes in vegetation in response to fluctuations in climate parameters and groundwater depths to be predicted.
英文关键词	high altitude wetlands of the Andes (HAWA) land surface changes prediction models conservation wetlands model for vegetation cover estimation Atacama Desert
类型	Article
语种	英语
开放获取类型	gold, Green Submitted
收录类别	SSCI
WOS记录号	WOS:000458029900019
WOS关键词	NDVI ; ABSTRACTION ; GROUNDWATER
WOS类目	Environmental Studies
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369921
作者单位	[Soto, Jorge; Roman-Figueroa, Celian] Agroenergia Ingn Genet SA Inc, Almirante Lynch 1179, Santiago 8920033, Chile; [Paneque, Manuel] Univ Chile, Fac Agr Sci, Dept Environm Sci & Nat Resources, Santa Rosa 11315, Santiago 8820808, Chile
推荐引用方式 GB/T 7714	Soto, Jorge,Roman-Figueroa, Celian,Paneque, Manuel. A Model for Estimating the Vegetation Cover in the High-Altitude Wetlands of the Andes (HAWA)[J],2019,8(1).
APA	Soto, Jorge,Roman-Figueroa, Celian,&Paneque, Manuel.(2019).A Model for Estimating the Vegetation Cover in the High-Altitude Wetlands of the Andes (HAWA).LAND,8(1).
MLA	Soto, Jorge,et al."A Model for Estimating the Vegetation Cover in the High-Altitude Wetlands of the Andes (HAWA)".LAND 8.1(2019).