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頁籤選單縮合
題 名 | 臺灣地區作物需水量推估模式之合適性研究=Study on the Suitability of Consumptive Use Estimation Methods for Taiwan Area |
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作 者 | 甘俊二; 陳清田; 陳焜耀; | 書刊名 | 農業工程學報 |
卷 期 | 42:2 1996.06[民85.06] |
頁 次 | 頁8-19 |
分類號 | 434.287 |
關鍵詞 | 作物需水量; 空氣動力阻力; 生長度日數; 作物遮蔽阻力; Consumptive use; Evapotranspiration; Aerodynamic resistance; Growing degree days; Crop canopy resistance; |
語 文 | 中文(Chinese) |
中文摘要 | 在水資源捉襟見肘的現階段,適時適量的實施灌溉,除可確保作物之產量外,更可有效地提升水資源之利用。為達此一目標,則如何有效快速準確地測算作物需水量,以提供農業灌溉計畫之研擬與營運管理之參考,實為從事灌溉事業者刻不容緩之要務。 本研究係應用國際糧農組織(FAO)於1984年所推荐之Modify Penman、Modify Blaney-Criddle、Radiation及蒸發皿蒸發量推求法等四種作物需水量間接推估法、與1994年國際灌溉排水協會(ICID)所公佈之Penman-Monteith法及以往國內外常用之估算作物需水量推估法,進行作物需水量之推估。並以嘉南學甲地區自民國78年到81年間所做之田間試加以驗證,期望藉由諸估算式之分析比較,建議一適用於本省之合理、適切之推估模式,以提供水資源規劃之參考。 由研究結果顯示,在諸估算式中以Penman-Monteith法為最佳,探究其原因,蓋其對於蒸發散量之推求是以植物生理為出發點,消弭了估算式中因地域性參數之影響所產生的誤差,故其穩定性佳,日後臺灣地區作物需水量之推估,在資料充足之情況下可以此估算式為之。 |
英文摘要 | Nowadays, due to the seriously constrained availability of water resources in the Taiwan area, the practice of irrigation in adequate quantity at the right times will be able o ensure the production of irrigated crops as well as promote the efficiencies of water resource uses. For the preparation of irrigation plans and for the reference for irrigation system operation and management, it is a pressing task to establish a method for the prompt, efficient, and accurate estimation of the water requirements of crops. The methods of consumptive use or crop water requirement estimation used in this study for irrigation in Taiwan include the Modified Penman, Modified Blaney-Criddle. Radiation, and Pan Evaporation method recommended by the Foods and Agriculture Organization. In 1984, as well as the Penman-Monteith Method recommended b the International Commission on Irrigation and Drainage (ICID) in 1994. Other methods often used in Taiwan and abroad were also tested. The results were further verified with the experiment data obtained form Hsieh-chia area in the period of 1989-1992. Comparisons between these methods were subsequently made in order to reach a consumptive use estimation method, which is rational and appropriate for Taiwan, to serve as a reference for the water resources planning of the island. The results of this study showed that, among the various methods of consumptive use estimation, the Penman-Monteith was the most suitable for the Taiwan area. The better stability achieved may be due to that this method is based on the physiological conditions of plants, eliminating the errors caused by territorial parameters. It is recommended that the Penman-Monteith method be applicable in the Taiwan area as long as the required input data are sufficiently available. |
本系統中英文摘要資訊取自各篇刊載內容。