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|a (JST)90009007
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 245 |
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|a Regional Assessment of Recharge Elevation of Tap Water Sources Using the Isoscape Approach
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a Computermedien
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|a The importance of mountains as "natural water towers" has been quantified by comparing water budgets in upstream (mountain) and downstream (lowland) areas, but their importance for tap water supplies has not been assessed. Here, we propose an isoscape approach to estimate the mean recharge elevation of tap water sources (rivers, reservoirs, springs, and wells) and apply it to a region in central Japan as a case study. Errors in the estimation of mean recharge elevation were estimated at 90–140 m. Results show that mean recharge elevations for about 90% of sources in the region are at 1000 m above sea level or higher. A little over half of the land area is above that elevation, while 98% of the population lives below it. These findings indicate that tap water disproportionally depends on recharge in mountains and is disproportionately supplied to lowland residents. Higher locations of spring water sources and longer (vertical) distances of groundwater flow for well water sources make the recharge-to-population disproportionality more remarkable. Furthermore, our results suggest that larger cities require higher natural water towers to meet greater water demand, complemented by intermunicipal water suppliers. Some low-elevation municipalities depend heavily on water recharged in mountains well outside their territories. The method proposed here helps clarify how people depend on water supplies from mountains, providing essential knowledge for integrated management of mountains and water resources.
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|a © 2017 Yamanaka and Yamada
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|a Tap water
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|a isotope
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|a isoscape
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|a mountain
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| 650 |
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|a recharge elevation
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| 650 |
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|a hydrology
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| 650 |
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|a Japan
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| 650 |
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|a Applied sciences
|x Food science
|x Foodstuffs
|x Food
|x Beverages
|x Non alcoholic beverages
|x Drinking water
|x Tap water
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| 650 |
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4 |
|a Environmental studies
|x Atmospheric sciences
|x Meteorology
|x Hydrometeorology
|x Precipitation
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| 650 |
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4 |
|a Physical sciences
|x Earth sciences
|x Geography
|x Geomorphology
|x Bodies of water
|x Rivers
|x River water
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| 650 |
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4 |
|a Physical sciences
|x Earth sciences
|x Geography
|x Geomorphology
|x Topography
|x Topographical elevation
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| 650 |
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4 |
|a Physical sciences
|x Earth sciences
|x Hydrology
|x Water resources
|x Spring water
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| 650 |
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4 |
|a Physical sciences
|x Earth sciences
|x Geology
|x Hydrogeology
|x Groundwater recharge
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| 650 |
|
4 |
|a Mathematics
|x Applied mathematics
|x Statistics
|x Applied statistics
|x Statistical results
|x Statistical properties
|x Estimate reliability
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| 650 |
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4 |
|a Business
|x Business engineering
|x Research and development
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| 650 |
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4 |
|a Physical sciences
|x Earth sciences
|x Hydrology
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| 650 |
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|a Physical sciences
|x Physics
|x Mechanics
|x Fluid mechanics
|x Fluid dynamics
|x Hydrodynamics
|x Water flow
|x Groundwater flow
|x MountainResearch
|x Systems knowledge
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| 655 |
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4 |
|a research-article
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| 773 |
0 |
8 |
|i Enthalten in
|t Mountain Research and Development
|d International Mountain Society
|g 37(2017), 2, Seite 198-205
|w (DE-627)477530710
|w (DE-600)2173778-2
|x 19947151
|7 nnns
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| 773 |
1 |
8 |
|g volume:37
|g year:2017
|g number:2
|g pages:198-205
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0 |
|u https://www.jstor.org/stable/90009007
|3 Volltext
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|d 37
|j 2017
|e 2
|h 198-205
|