https://scholars.lib.ntu.edu.tw/handle/123456789/358413
標題: | Modelling the hydrologic effects of dynamic land-use change using a distributed hydrologic model and a spatial land-use allocation model | 作者: | Chu, H.-J. YU-PIN LIN Huang, C.-W. Hsu, C.-Y. Chen, H.-Y. |
關鍵字: | DHSVM; Distributed hydrologic model; GLUE; Land-use change; Taiwan; Uncertainty analysis | 公開日期: | 2010 | 卷: | 24 | 期: | 18 | 起(迄)頁: | 2538-2554 | 來源出版物: | Hydrological Processes | 摘要: | This study develops a novel approach for modelling and examining the impacts of time-space land-use changes on hydrological components. The approach uses an empirical land-use change allocation model (CLUE-s) and a distributed hydrological model (DHSVM) to examine various land-use change scenarios in the Wu-Tu watershed in northern Taiwan. The study also uses a generalized likelihood uncertainty estimation approach to quantify the parameter uncertainty of the distributed hydrological model. The results indicate that various land-use policies-such as no change, dynamic change and simultaneous change-have different levels of impact on simulating the spatial distributions of hydrological components in the watershed study. Peak flow rates under simultaneous and dynamic land-use changes are 5.71% and 2.77%, respectively, greater than the rate under the no land-use change scenario. Using dynamic land-use changes to assess the effect of land-use changes on hydrological components is more practical and feasible than using simultaneous land-use change and no land-use change scenarios. Furthermore, land-use change is a spatial dynamic process that can lead to significant changes in the distributions of ground water and soil moisture. The spatial distributions of land-use changes influence hydrological processes, such as the ground water level of whole areas, particularly in the downstream watershed. Copyright © 2010 John Wiley & Sons, Ltd. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-77955609151&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/358413 |
DOI: | 10.1002/hyp.7667 | SDG/關鍵字: | Allocation model; DHSVM; Distributed hydrologic model; Distributed hydrological model; Dynamic changes; Generalized likelihood uncertainty estimation; Ground water level; Hydrologic effects; Hydrological process; Land-use change; Land-use policies; Northern Taiwan; Parameter uncertainty; Spatial distribution; Spatial dynamics; Taiwan; Time-space; Climate models; Dynamic models; Glues; Gluing; Groundwater; Land use; Landforms; Size distribution; Soil moisture; Uncertainty analysis; Water levels; Watersheds; Forestry; computer simulation; estimation method; groundwater flow; hydrological modeling; hydrological response; land use change; peak flow; spatial distribution; uncertainty analysis; water level; watershed; Taiwan |
顯示於: | 生物環境系統工程學系 |
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