水土資源是國家重要並且是人類生存不可或缺的兩項自然資源，如何有效地利用與調配水土資源便成為國家具有永續性與否重要之關鍵。而在本研究以河川流域系統為基本考量，探討河川流域系統內存在之各種組成與作用，分析組成與作用對於河川流域系統整體之影響程度，並依據聯合國發展之驅動力-狀態-回應(Driving force-State-Response)永續發展指標架構，與因果關係之概念，發展與建立本研究之河川流域系統，與水管理決策的架構。本研究在發展與建立系統動力學時，將決策支援系統之物件導向，與資料庫之關聯式架構的觀念，導入系統動力模式中，建立物件導向關連式(OOP)的系統動力模式，主要的目的是在提升決策時人機的之間的親和性，與模式管理的效率，並達提升水土資源管理決策輔助的目的。依據上述的架構建立立水管理系統動力模式，此模式程式包括的水土資源的作用關係，與水管理決策資源分析，其可以提供河川流域在特定的經濟與社會下的水資源使用效益、土地使用狀態、以及人口狀態之判斷，以提供水管理決策單位進行相關決策時之參考依據。 Water and land are the two integral natural resources for national development as well as human survival. With this regard, how to accommodate and make good use of these two items becomes the hinge of judging whether or not the achievement of sustainable quality in the country. Taking river basin system as the primary concern, this study first of all discusses inward varied formation and uses and then analyzes their significance for the whole system. Simultaneously, based on Driving force-State-Response sustainable indicator constitution of The United Nations and its causation, I am able to establish and further develop river system and water management of this study. The study use a idea what is Object-Oriented of decision-support system (DSS) and association of relational data base to establish Object-Oriented-relational programming of system dynamics models. Its main purpose it to reinforce the intimacy between human and machine while making decision, the effectiveness of model management and eventually achieve the goal of water-land resources policy. According to what mentioned above, my water management pattern includes river-land interrelationship and water management policy analysis. These two terms provide the effectiveness of specific economic and social river use, the condition of land use and the distinction of population state. These important elements should be taken into consideration when the members of water management institution determine correlated policy
