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題名 | 線性規劃在池塘灌溉系統聯合營運之應用=Linear Programming Applied in the Conjunctive Use of Pond Irrigation System |
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作者 | 簡傳彬; 方文村; Chien, Chuan-pin; Fang, Wen-tsun; |
期刊 | 農業工程學報 |
出版日期 | 20000900 |
卷期 | 46:3 2000.09[民89.09] |
頁次 | 頁69-82 |
分類號 | 434.2571 |
語文 | chi |
關鍵詞 | 線性規劃; 聯合營運; 灌溉系統; 池塘; 貯水池; 回歸水; Linear programming; Conjunctive use; Irrigation system; Pond; Return flow; |
中文摘要 | 本研究以線性規劃(Linear Programming)之方法來構建一個能整合水庫、池塘(貯水池)、回歸水及攔河堰做水量最佳調配的數學模式,以達到農業最大收益之目標。臺灣地區中,桃園農田水利會為一上述池塘集水、回歸水、攔河堰取水及水庫水源供給所構成的灌溉系統範例之一,然由於整個桃園水利會灌溉區域極大,因此本研究選擇其光復圳灌區為範例研究區域。整個光復圳灌區由60口池塘、109個輪區及27個攔河堰所組成。系統中可視各池塘為小型的水庫來與其他水源共同調配。經由本研究所建置之池塘灌溉系統聯合營運最佳化模式,對光復圳民國八十六年之資料進行運算,結果顯示在大圳供水(即支線配水)部份,採用線性規劃結果較灌溉計畫減少476萬立方公尺;較實際配水減少1,021萬立方公尺,較農業工程研究中心(1998)之模擬配水減少799萬立方公尺;最大年淨收入13,980萬元,較實際配水增加2,697萬元。其原因在充分運用池塘調配,減少池塘溢流量及田間溢流。當河水之電導度在750 μmhos/cm以上時,隨著電導度之增加,大圳需增加供水量,而農業收益則相應降低。當大圳之年可供水量低於3,314 ha-m時,隨著大圳之年可供水量減少,農業收益亦降低。 |
英文摘要 | This study is to construct a model with linear programming for the objective of maximum profits in agriculture. The model is to give optimal conjunctive use by taking into account of multiple water resources with different characteristics. The irrigation system operated by the Taoyuan Irrigation Association (TIA) in the Northern Taiwan is one of the best examples for conjunctive use. The system consists of water ponds, diversion weirs, return flow and a main water resource, which is from the Shihmen reservoir. As a study case, the model is constructed according to the characteristics of the area irrigated by the Kung-Fu Canal in TIA. The area includes 60 water ponds, 109 rotational divisions, and 27 diversion weirs. In terms of mathematical formulation in the model, water ponds can be treated as small reservoirs for water allocation or storage, and diversion weirs can supply water through laterals when river flow situation is allowed. As a result, the optimal model can supply water efficiently and economically to the rotational divisions for maximum profits. In 1997, for the water supplied from Shihmen reservoir (i.e., the allocation to the Kung-Fu Canal), the amount can be reduced by 1,021×10⁴M³ for the actual water supply of 4,335×10⁴M³ in the year. The profit for the year is NT$ 139.80 million, while the actual irrigation plan can only offer profit of about NT$ 112.83 million. When the electric conductivity of the supply water from weirs is over 750 mmhos/cm, then the water supplied from Shihmen reservoir is supposed to be increased and the agricultural profit be decreased. When maximum water supply from Shihmen reservoir is under 3,314 ha-m, then the water supplied from Shihmen reservoir is not able to cover the demand and the agricultural profit is decreased. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。