Abstract
摘要：集水區之土地利用及水文現象皆為空間分佈， 而景觀生態主要是以時空間尺度研究土地利用組成之空間要素、結構、變化與其間相互作用。因此探討集水區土地利用須以空間分佈及景觀生態為基礎。本計畫目的為建立一整合性集水區生態水文及土地利用空間分佈模式， 以整合性空間分佈概念及架構， 整合景觀生態面向之土地利用變遷優化模式及空間分佈性水文模式於地理資訊系統。工作重點第一在評估研究區土地需求及空間政策， 訂定研究區土地利用策略， 並建立景觀生態面向土地利用變遷優化模式，模擬不同策略下土地利用變遷，訂定景觀生態指數為優化之目標函數，應用退火演算法求取最佳化之土地利用空間格局， 以統計檢定探討優化與非優化土地利用各情境格局之差異性， 同時研究分析與測試分佈式水文土地植被模式(DHSVM)。第二在整合景觀生態面向土地利用變遷優化模式與分佈性水文模式， 以優化之土地利用模擬情境為分佈性水文模式之土地利用參數， 並探討各優化之土地利用情境對於水文現象之空間分佈之影響及其關係。第三在整合景觀生態面向土地利用變遷優化模式與分佈性水文模式於地理資訊系統中， 建構一整合性空間分佈景觀生態水文模式， 並進行本整合性模式檢討並修正， 最後將此整合模式建置於地理資訊系統， 以及探討未來進一步整合其他模型之可行性探討。
Abstract: Land use, land cover and hydrological components are all spatial distributed in watersheds. The landscape ecology, dealing with the interactions between spatial pattern and ecological processes, perspective offers great benefits when analyzing land cover changes as part of anecosystem on spatial and temporal scales. The purpose of this research is to develop an integrated spatial distributed model for watershed planning and management based on integrated spatial distributed concept and framework integrating optimal land use change model in landscape dimension, and a spatial distributed hydrological model into a geographical information system. The first step of this project is to evaluate land use demands and spatial policies, and define land use strategies for the Wutu watershed. Moreover, the optimal land use change model in landscape dimension will be developed by using landscape metrics, simulated annealing and empirical land use change model. The results of optimal land use change scenarios will also be tested by statistical test for assessing differences among land use strategies. Finally, the spatial distributed hydrological model(Distributed Hydrological Vegetation Model; DHVM) is reviewed and tested in the simple cases. In the second step of this project, the main purpose is to integrate optimal land use change model
and DHVM model. The optimal simulated land use scenarios will be the land use parameters of the DHVM model to discuss and assess the impacts of optimal land use scenarios on distributed hydrological phenomena. In the third step, the optimal land use change, CLUE-s, DHVM and GWLF models will be integrated into the geographical information system. The final tests of the integrated model will be performed in all cases of the study watershed. Related models will be assessed the suitability into the integrated model and the system for future studies.
Keyword(s)
土地利用模擬
景觀生態
空間格局
空間分佈水文模式
最佳化
空間分佈
整合性空間分佈模式
Land use change simulation
Landscape ecology
Spatial Pattern
Spatial distributed hydrological model
Optimization
Spatial distributed
Integrated Spatial Distributed Model
