Influences of Climatic Change and Irrigation Water Transfer on the Potential Production of Rice

• Main Authors: Mei-Chiun Chou, 周玫君
• Other Authors: Ching-Pin Tung
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/57385383389765532891

碩士 === 國立臺灣大學 === 生物環境系統工程學研究所 === 92 === Greenhouse gases emitted into the atmosphere enhance the greenhouse effects and result in global warming. Taiwan is also under the influence of these climatic changes. The resulting extremely climatic and hydrologic changes impose significant influence on the local agriculture. The irrigation of rice, one of the most important crops in Taiwan, contributes more than 60% of water consumption. In order to investigate the impact of climatic changes on rice production, the meteorological data predicted by General Circulation Models (GCMs) is used to simulate the trend of rice production change in this study. All simulated results, difficulties, and uncertainties are all depicted in this work. Irrigation water consumption is important to the water allocation in both industrial and domestic sectors. In recent years, the frequent occurring drought events make it necessary to share the water resource to the domestic and industrial sectors from the agriculture sector. However, this sharing system is still lack of the user-pay mechanism. The reported trading mechanisms for water market are limited to the consideration of cost-effective analysis, are not relevant to the predicted meteorological data. Therefore, CERES-Rice model is used in this study to simulate the relationship between rice production and irrigation water amount for Tan-Shei River basin under different irrigation situations. Simulated results further serve as the basis to evaluate the monetary production of agriculture irrigation water use. These information can also provide suggestion for the precaution of drought.