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Water Resources Management

Erschienen in:

01.03.2012

Scenario-based Impact Assessment of Land Use/Cover and Climate Changes on Water Resources and Demand: A Case Study in the Srepok River Basin, Vietnam—Cambodia

verfasst von: Tran Van Ty, Kengo Sunada, Yutaka Ichikawa, Satoru Oishi

Erschienen in: Water Resources Management | Ausgabe 5/2012

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Abstract

This study investigates an interdisciplinary scenario analysis to assess the potential impacts of climate, land use/cover and population changes on future water availability and demand in the Srepok River basin, a trans-boundary basin. Based on the output from a high-resolution Regional Climate Model (ECHAM 4, Scenarios A2 and B2) developed by the Southeast Asia—System for Analysis, Research and Training (SEA-START) Regional Center, future rainfall was downscaled to the study area and bias correction was carried out to generate the daily rainfall series. Land use/cover change was quantified using a GIS-based logistic regression approach and future population was projected from the historical data. These changes, individually or in combination, were then input into the calibrated hydrological model (HEC-HMS) to project future hydrological variables. The results reveal that surface runoff will be increased with increased future rainfall. Land use/cover change is found to have the largest impact on increased water demand, and thus reduced future water availability. The combined scenario shows an increasing level of water stress at both the basin and sub-basin levels, especially in the dry season.

Vorheriger Artikel Reservoir Management Using Coupled Atmospheric and Hydrological Models: The Brazilian Semi-Arid Case

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Titel: Scenario-based Impact Assessment of Land Use/Cover and Climate Changes on Water Resources and Demand: A Case Study in the Srepok River Basin, Vietnam—Cambodia
verfasst von: Tran Van Ty
Kengo Sunada
Yutaka Ichikawa
Satoru Oishi
Publikationsdatum: 01.03.2012
Verlag: Springer Netherlands
Erschienen in: Water Resources Management / Ausgabe 5/2012
Print ISSN: 0920-4741
Elektronische ISSN: 1573-1650
DOI: https://doi.org/10.1007/s11269-011-9964-1

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