Integrating a Land-use Model and a Hydrological Model in Watershed Planning and Management– A Case Study of Taipei Metropolitan Area
Date Issued
2010
Date
2010
Author(s)
Chen, Horng-Yng
Abstract
Land use changes may have some impacts on the landscape structure and the hydrological processes, and proper land use planning strategies could help in mitigating those effects. Both the simulation of land use changes and the analysis of landscape structure or hydrological processes need the spatial data of the study area. In recent years, many researchers have worked at integrating different analysis models into the Geographic Information Systems to promote the usefulness and convenience of the model. However, there is little research on understanding the causes and effects of land use changes.
In this study, we have integrated a land use model (CLUE-S), a precipitation-runoff model (HEC-HMS), and Patch Analyst into a novel platform in a Geographical Information System (ArcGIS). Our objective is to simulate land use changes and their impacts in the Taipei Metropolitan Area in Taiwan. Given different conservation and development scenarios, future land uses in the study area are simulated by the CLUE-S model in the ArcGIS platform. By simulating runoffs, it is possible to assess the impacts of land use changes on surface runoffs in the study area by using the HEC-HMS model in the ArcGIS platform. In addition, to assess the impacts of land use changes on land use patterns, landscape metrics of the simulated land uses are calculated by the patch analyst in the ArcGIS platform.
The results demonstrate that the CLUE-S model and the developed platform can simulate land use change scenarios efficiently. The model can also integrate other models to simulate and assess the impacts of land use changes on watershed land use planning and management.
Subjects
GIS
land use change simulation
landscape metrics
hydrological model
SDGs
Type
thesis
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