globalchange  > 气候变化事实与影响
DOI: 10.1007/s12040-018-1048-7
WOS记录号: WOS:000456953200002
论文题名:
Mapping of groundwater spring potential zone using geospatial techniques in the Central Nepal Himalayas: A case example of Melamchi-Larke area
作者: Ghimire, Motilal; Chapagain, Prem Sagar; Shrestha, Shova
通讯作者: Ghimire, Motilal
刊名: JOURNAL OF EARTH SYSTEM SCIENCE
ISSN: 2347-4327
EISSN: 0973-774X
出版年: 2019
卷: 128, 期:2
语种: 英语
英文关键词: Groundwater spring ; weight of evidence ; hydrogeology ; Himalayas
WOS关键词: CLIMATE-CHANGE ; KATHMANDU VALLEY ; PLANTED FORESTS ; INDRAWATI BASIN ; GIS ; WATER ; RECHARGE ; DISCHARGE ; TERRAIN ; IMPACT
WOS学科分类: Geosciences, Multidisciplinary ; Multidisciplinary Sciences
WOS研究方向: Geology ; Science & Technology - Other Topics
英文摘要:

Studies assessing the groundwater spring potential in the Himalayan mountain slopes are very important for sustainable water resources management and build climate resilience in mountains, but such studies are few in the Himalayas. Hence, this paper attempts to identify the groundwater spring potential zone in the Central Himalayas of Nepal. About 412 groundwater springs were surveyed, which were mainly originated from the weathered, jointed or fractured rock aquifers in the high-grade metamorphosed rocks. Eleven influencing factors, viz., altitude, slope gradient, slope shape, relative relief, flow accumulation, drainage density, geology, lineament density, land use and vegetation density were considered in assessing the groundwater spring potential using the weight of evidence method. Weight indicating the probability of groundwater spring occurrence on multiple classes of each factor was calculated and finally summed up to determine the groundwater spring potential. Gentle slope, low relative relief, high flow accumulation, north- and east-facing slopes, denser lineament density, altitude class of 1500-2500 m, high vegetation density, and forest demonstrated a higher likelihood of spring occurrence. Validation of the groundwater spring potential map was successful, which implies the method can be replicated in a similar biophysical environment, where the hydrogeological or geophysical surveyed data is not available.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/131459
Appears in Collections:气候变化事实与影响

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作者单位: Tribhuvan Univ, Cent Dept Geog, Kathmandu, Nepal

Recommended Citation:
Ghimire, Motilal,Chapagain, Prem Sagar,Shrestha, Shova. Mapping of groundwater spring potential zone using geospatial techniques in the Central Nepal Himalayas: A case example of Melamchi-Larke area[J]. JOURNAL OF EARTH SYSTEM SCIENCE,2019-01-01,128(2)
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