https://scholars.lib.ntu.edu.tw/handle/123456789/350723
標題: | Developing and comparing optimal and empirical land-use models for the development of an urbanized watershed forest in Taiwan | 作者: | YU-PIN LIN Verburg, P.H. Chang, C.-R. Chen, H.-Y. Chen, M.-H. |
關鍵字: | Empirical land-use pattern; Landscape metrics; Optimal land-use pattern; Runoff; Watershed land-use | 公開日期: | 2009 | 卷: | 92 | 期: | 3-4 | 起(迄)頁: | 242-254 | 來源出版物: | Landscape and Urban Planning | 摘要: | The objective of this study is to demonstrate the utility of optimal spatial models for modeling specific spatial patterns to facilitate rational land-use planning of a watershed in northern Taiwan. Optimization was implemented using simulated annealing in a spatial pattern optimization model (OLPSIM), and developments predicted by the drivers of past land-use changes were modeled with the CLUE-s model. The landscapes simulated by the models were then input to a precipitation-runoff model (the Hydrologic Engineering Center's Hydrologic Modeling System; HEC-HMS) to assess the impact of land-use patterns on runoff in the watershed and sub-watershed scales. The results suggest that the three strategies produced very different landscapes under medium intensity scenarios. Specifically, maximizing the size of forest patches caused deforestation of small forest patches, resulting in a large, complex-shaped, dispersed forest; minimizing forest patch shapes resulted in the dissection of large, complex-shaped forests into smaller, simpler-shaped fragments; and land development based on past trends resulted in the aggregation of urbanized land-use in gentler terrains. The results of hydrological simulations suggest that the three land-use strategies differ less in their total hydrological outputs, but more in their distribution of hydrological outputs across different sub-watersheds. Investigating more spatially explicit hydrologic impacts of urbanization at the sub-basin scale may provide additional information that would help decision-makers evaluate proposed land-use policies more thoroughly. © 2009 Elsevier B.V. All rights reserved. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-68349128672&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/350723 |
DOI: | 10.1016/j.landurbplan.2009.05.003 | SDG/關鍵字: | Decision makers; Empirical land-use pattern; Forest patches; HEC-HMS; Hydrologic impacts; Hydrologic modeling; Hydrological simulations; Land development; Land-use change; Land-use patterns; Land-use planning; Land-use policies; Land-use strategies; Landscape metrics; Northern Taiwan; Optimal land-use pattern; Runoff model; Spatial models; Spatial patterns; Spatially explicit; Sub-basin scale; Watershed land-use; Watershed scale; Deforestation; Land use; Landforms; Models; Runoff; Simulated annealing; Watersheds; Hydraulic models; decision making; deforestation; land use change; land use planning; landscape planning; numerical model; optimization; rainfall-runoff modeling; spatial analysis; strategic approach; urban area; watershed; Deforestation; Hydraulics; Land Use; Models; Runoff; Water Sheds; Asia; Eurasia; Far East; Taiwan |
顯示於: | 生物環境系統工程學系 |
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