干旱区生态环境知识资源中心(Arid): Identifying the Climatic and Anthropogenic Impact on Vegetation Surrounding the Natural Springs of the Arava Valley Using Remote Sensing Methods

Arid

DOI	10.3390/land13030361
	Identifying the Climatic and Anthropogenic Impact on Vegetation Surrounding the Natural Springs of the Arava Valley Using Remote Sensing Methods
	Meroz, Ariel Mordechai; Babad, Avshalom; Levin, Noam
通讯作者	Meroz, AM
来源期刊	LAND
EISSN	2073-445X
出版年	2024
卷号	13 期号:3
英文摘要	Natural springs, recognized as biodiversity hotspots and keystone ecosystems, exert positive ecological influences beyond their immediate extent, particularly in dryland environments. The water feeding these springs, largely governed by natural climatic conditions, is susceptible to anthropogenic impacts. The objective of this study was to determine the factors that cause fluctuations in water availability to springs of the hyper-arid Arava Valley (Israel/Jordan). Using the Standard Precipitation Index, we statistically classified the historical record of yearly rainfall for the past four decades into clusters of dry and wet sub-periods. We assessed changes in vegetation cover around the springs using the Landsat-derived Normalized Difference Vegetation Index (NDVI) for each sub-period. To assess the anthropogenic effects, we examined the correlations between vegetation cover, water extraction from the aquifer, and the status of adjacent agricultural plots that share a hydrological connection with the springs. Our findings revealed fluctuations between wet and dry sub-periods over the last four decades. We observed high responsiveness of vegetation cover around the springs to these fluctuating sub-periods. Of the 25 studied springs, 12 were directly influenced by anthropogenic factors-7 experienced a decline in vegetation, which we attributed to water extraction from the aquifers, while vegetation increase in 5 springs was attributed to water seepage from agricultural areas upstream. In conclusion, addressing vital habitats such as natural springs in arid drylands requires a holistic approach that integrates long-term climatic, ecological, and anthropogenic observations.
英文关键词	springs hyper-arid aquifers Normalized Difference Vegetation Index Standardized Precipitation Index
类型	Article
语种	英语
开放获取类型	gold
收录类别	SSCI
WOS记录号	WOS:001193005200001
WOS关键词	ECOSYSTEM SERVICES ; CULTIVATED FIELDS ; NEGEV DESERT ; ARID REGION ; GROUNDWATER ; DROUGHT ; CONTAMINATION ; CONSERVATION ; BIODIVERSITY ; VARIABILITY
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/2XILL650/404787
推荐引用方式 GB/T 7714	Meroz, Ariel Mordechai,Babad, Avshalom,Levin, Noam. Identifying the Climatic and Anthropogenic Impact on Vegetation Surrounding the Natural Springs of the Arava Valley Using Remote Sensing Methods[J],2024,13(3).
APA	Meroz, Ariel Mordechai,Babad, Avshalom,&Levin, Noam.(2024).Identifying the Climatic and Anthropogenic Impact on Vegetation Surrounding the Natural Springs of the Arava Valley Using Remote Sensing Methods.LAND,13(3).
MLA	Meroz, Ariel Mordechai,et al."Identifying the Climatic and Anthropogenic Impact on Vegetation Surrounding the Natural Springs of the Arava Valley Using Remote Sensing Methods".LAND 13.3(2024).