DC 欄位 值 語言 DC.contributor 水文與海洋科學研究所 zh_TW DC.creator 鄭明昇 zh_TW DC.creator Ming-sheng Jheng en_US dc.date.accessioned 2007-7-11T07:39:07Z dc.date.available 2007-7-11T07:39:07Z dc.date.issued 2007 dc.identifier.uri http://ir.lib.ncu.edu.tw:444/thesis/view_etd.asp?URN=946205005 dc.contributor.department 水文與海洋科學研究所 zh_TW DC.description 國立中央大學 zh_TW DC.description National Central University en_US dc.description.abstract 本研究採用水收支平衡觀念，建立桃園新坡、觀音、新屋灌區之系統動力區域迴歸水模式，依據研究區域土地利用類別，分別建構各分區之水平衡方程式，再將灌區之灌溉旬報表之引灌溉水量與觀測降雨量，輸入所建構模式模擬，以河川下游監測站流量資料進行驗證。本研究利用95年二期稻作期間監測資料探討區域迴歸水量大小、迴歸水特性、可供調配水量以及水田水平衡分析。 分析結果顯示，河川下游流量大都來自於農業迴歸水，新屋溪約佔60%、觀音溪為54%、大堀溪為62%，以日流量超越機率曲線Q90%所對應之流量與觀測流量其計算結果，可供調配水量新屋溪約11287CMD、觀音溪約5484CMD、大堀溪約113381CMD。此外，模擬期間之農業用地水平衡中以蒸發散量佔最大量，新屋溪、觀音溪、大堀溪分別為3.69、3.74、3.71mm/day，而側向滲漏量則分別約有1.59、1.48、1.36mm/day。 zh_TW dc.description.abstract In this study the regional return flows in the Taoyuan Irrigation District were analyzed. By classifying landuse type of the study area, a system dynamic model based on water balance was developed for the SinPo, GuanYin, SinWu irrigation area. Field experiments were performed to measure rainfall, water quality, and stream discharge for the second rice farming period of 2006. Simulation results of regional return flows, return flow characteristics, water supply, and paddy water balance will be discussed in this study. The results show that the agriculture return flows were 60%, 54%, and 62% of the discharges measured in the SinWu, GuanYin and DaJyue rivers, respectively. By reserving Q90% for river flows, the amounts of return flows can be allocated were 11287CMD, 5484CMD and 113381CMD, respectively. From the results of the paddy water balance, the amounts of evapotranspiration were 3.69, 3.74 and 3.71 mm/day and the horizontal seepages were 1.59, 1.48 and 1.36 mm/day for the three irrigation areas, respectively. en_US DC.subject 桃園灌區 zh_TW DC.subject 迴歸水 zh_TW DC.subject 水收支平衡 zh_TW DC.subject 系統動力模式 zh_TW DC.subject Taoyuan Irrigation District en_US DC.subject Return Flow en_US DC.subject System Dynamic Model en_US DC.subject Water Balance en_US DC.title 桃園灌區之區域迴歸水分析研究 zh_TW dc.language.iso zh-TW zh-TW DC.title Analysis of Regional Return Flows in the Taoyuan Irrigation District en_US DC.type 博碩士論文 zh_TW DC.type thesis en_US DC.publisher National Central University en_US