基地保水指標為綠建築法規最具象徵指標之一，藉由促進基地的透水設計並廣設貯留滲透水池的手法，可促進大地的水循環能力、改善生態環境、降低公共排水設施容量，以及減少都市洪水之發生。本計畫分析明道大學校園基地規劃前後之各項設施配置變化，並配合基地之開發前後文獻蒐集及現地調查，輔以綠建築之基地保水指標評估基地內各項地表逕流節水設施之配置效益，計算結果顯示研究地區之基地保水指標值大於0.7以上，符合綠建築相關規範規定。

In green architecture regulation, water resources conservation index is a critical evaluating index. By the design of runoff retention facilities, it can promote the water cycle for the developed land, improved the eco-environmental system and reduce the occurrence of urban flooding. The objectives of this study are to evaluate the benefits of runoff retention facilities at Ming Dao University and calculate the water resources conservation index by airborne images and on-site survey. The analyzed results indicated that the values of water resources conservation index in studied site are greater than 0.7. Obviously, the development of Ming Dao University conformed to the regulation of green architecture.