博碩士論文 87322020 完整後設資料紀錄

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DC.contributor土木工程學系zh_TW
DC.creator林進財zh_TW
DC.creatorJian-Hsai Linen_US
dc.date.accessioned2000-6-29T07:39:07Z
dc.date.available2000-6-29T07:39:07Z
dc.date.issued2000
dc.identifier.urihttp://ir.lib.ncu.edu.tw:444/thesis/view_etd.asp?URN=87322020
dc.contributor.department土木工程學系zh_TW
DC.description國立中央大學zh_TW
DC.descriptionNational Central Universityen_US
dc.description.abstract本論文著重於方法論之研究,以嘉南地區為案例,配合曾文水庫水庫規線操作,於水庫蓄水量不足時,將水資源供給分為兩部分,一為上游水庫蓄水;一為下游降雨。本研究考量上游水庫蓄水主要提供給下游用水,包括民生、農業、工業及公共給水,故水庫蓄水量有時會有匱乏不足的情況發生。研究中假設研究年之第15旬至第25旬之水庫入流量及蓄水量為已知值,於研究年中利用第25旬之水庫蓄水量及迴歸週期入流量,判斷是否需限水操作。在計算上利用區域化變數理論及蒙地卡羅模擬,推求未來水庫之缺水機率及作物存活機率。結果顯示,由於二期作之降雨量較一期作時期為高,故二期作不足的作物水量由降雨量補足的機率將會較一期作由降雨量補足的機率高。本研究結論建議,在不改變耕作面積的條件下,可供給一期作充足的灌溉用水量以使其作物存活機率提高,而二期作則在可忍受的作物存活機率降低所造成之經濟損失下,折減其灌溉用水,減供之水量可預留供給隔年一期作的灌溉用水。zh_TW
dc.description.abstractThis paper emphases on the methodology of drought management. In the case of Jia-nan District, when the reservoir storage is lower than usual, reservoir operation rule curves are applied. In this study we focus on two elements in water resources system, one is upstream reservoir storage, and the other is downstream rainfall. This research considers that upstream reservoir storage primary supply downstream uses, including civil, agricultural, industrial, and public use. It is assumed that we have known the inflows and the storage during the periods from the fifteenth to the twenty-fifth period. The reservoir inflows and the storage of the twenty-fifth period is used to determine whether we need to limit water use. The theory of Regionalized Variables and Monte Carlo simulation was employed to calculate the probability of water lack and crops survival rate. The result shows that because the rainfall of second plow season is more than that of the first plow season, the probability of water lack during the second plow season is higher than that of first plow season. In conclusion, one should supply the first plow season sufficient irrigation water to raise the survival rate of crops. We reduce the irrigation water during second period plow and the stored water can supply for the first period plow next year.en_US
DC.subject救旱措施zh_TW
DC.subject水資源zh_TW
DC.title救旱措施對水資源供需之影響分析zh_TW
dc.language.isozh-TWzh-TW
DC.type博碩士論文zh_TW
DC.typethesisen_US
DC.publisherNational Central Universityen_US

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