The shortage of water resources is one of the serious problems that has been faced in Taiwan as well as global. The effects derived from the shortage of water resource include disaster of debris flow, pollution of water quality, the destruction of ecological environment, and the downcast of ethics. These effects caused social cost very much in Taiwan. Therefore, the effects of planting Betel Palm are necessary to be studied. The purpose of this study is to report the results in of our investigations on the effects caused by the change of hydrological environment, specially in the descending of water table. The results indicated that of public should pay more attention onthe issue of the seriousness of the problem in decreasing water table in order to have better living environment in the future.