부산대학교 도서관

Agricultural development in Taiwan is thriving. Throughout the island, comprehensive irrigation management systems have been established, overseen by the management offices under Irrigation Agency. However, the Kinmen region has long suffered from the absence of a corresponding management unit responsible for irrigation planning and infrastructure maintenance, resulting in the majority of local farmlands relying on natural rainfall for cultivation. Unfortunately, this method is highly susceptible to the impacts of climate change. In recent years, with extreme fluctuations in precipitation, there has been a downward trend observed in the yield of sorghum. To address this pressing issue, the government plans to utilize reclaimed water from domestic sources as a supplementary irrigation resource. Within this context, this study aims to devise an irrigation water allocation model to optimally harness the limited water resources, with the ultimate aspiration of establishing a robust irrigation and water allocation plan for the Kinmen region. In this study, we simulate the crop rotation of local sorghum and wheat, considering soil, crop, and historical meteorological data. We calculate the variations in crop yield under different irrigation schemes. Additionally, we select meteorological data from different years as simulation scenarios to test the benefits of the irrigation plan under various climatic conditions. Finally, based on the simulation results, as well as considering factors such as cost, we will formulate an irrigation water allocation plan that can be practically implemented by local farmers. For this study, we have chosen a 100-hectare demonstration area located in Jinsha Town, Kinmen, as our study area. We will utilize 750 tons of reclaimed water provided daily by the Ronghu Water Resources Recycling Center as the irrigation water source. According to the simulated yields under different scenarios and irrigation plans, it is recommended to implement irrigation plans with intervals of two weeks and three weeks during average years and dry years, respectively, to achieve maximum efficiency. Subsequently, this study will implement the irrigation water allocation plan in the designated demonstration area. The aim is to validate the simulated yields and, simultaneously, to use this initiative as a starting point for the systematic implementation of irrigation water allocation plans in other regions of Kinmen.