Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/33464
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dc.contributor.advisor林俐玲zh_TW
dc.contributor.advisorLI LING LINen_US
dc.contributor.authorCHEN, YU WENen_US
dc.contributor.author陳鈺雯zh_TW
dc.date2005zh_TW
dc.date.accessioned2014-06-06T07:46:05Z-
dc.date.available2014-06-06T07:46:05Z-
dc.identifier.urihttp://hdl.handle.net/11455/33464-
dc.description.abstractSoil Conservation Service Curve Number was established by U. S. Soil Conservation Service. The reference table of SCS CN was established according to the soil classification, land utilization and antecedent moisture condition(AMC). It is doubted that while those regions have different hydrologic and geographic conditions, this SCS CN table is whether suitable for other regions or not. Therefore, I tried to use SCS CN method and adopted total precipitation of the day runoff occurring and antecedent five days whose mass precipitation is antecedent precipitation index(API) before runoff occurring, plus actual runoff data to establish suitable CN values as modified CN for Taiwan by calibration and validation in this study. The modified CN and another original CN from SCS CN table were applied in Agriculture Non-Point Source Pollution Model(AGNPS) to calculate soil loss, peak runoff rates, sediment delivery ratio and sediment yield of Sanyi experiment area and then calculated values of sediment yield were compared with the actual sediment yield during development period. Modified CN values of Sanyi experiment area are lower than the original ones, and the calculated sediment yield values with modified CN also lower than the values with original CN, meanwhile the calculated values of sediment yield with modified CN are closer to the actual values during development period. CN is a sensitive factor of calculating sediment yield in AGNPS, so adopting the correct CN is very important for effective estimation.en_US
dc.description.abstract逕流曲線值CN為美國土壤保持局(U. S. Soil Conservation Service)建立,根據土壤分類、土地利用狀況、臨前水分條件(Antecedent moisture condition, AMC)等,訂定出CN值之參考表。隨著不同地區,有不同的水文與地文條件,使得美國所建立之CN參考表是否適用於其他地區有所疑慮。有鑑於此,本研究參考美國建立CN的方式,採用發生逕流當天與臨前五日以內總降雨量為臨前降雨指數(Antecedent Precipitation Index, API),加上實測逕流量資料,經由率定和驗證來建立比較適合台灣地區使用的CN參考表。分別由此CN參考表、SCS CN表選出三義試區之修正CN與原始CN值應用於農業非點源污染模式(AGNPS),模擬推估土壤流失量、泥砂產量、泥砂遞移率和洪峰逕流率,再以此地開發中實測之泥砂產量和推估值比較。三義試區修正後之CN比原始值小,用於AGNPS模擬之推估值也降低,以此修正CN推估開發中之泥砂產量更接近於實測值。在AGNPS推估泥砂產量時,CN為敏感因子,因此選取正確CN值對於推估的準確性是很重要的。zh_TW
dc.description.tableofcontents摘要………………………………………………………………….. Ⅰ 英文摘要…………………………………………………………….. Ⅱ 目錄………………………………………………………………….. Ⅲ 表目錄……………………………………………………………….. Ⅳ 圖目錄……………………………………………………………….. Ⅴ 壹、前言…………………………………………………………….. 1 貳、前人研究……………………………………………………….. 3 一、逕流曲線值(SCS CN)…………………………………….. 3 二、臨前降雨指數(API)………………………………………. 6 三、農業非點源污染模式(ANPS)……………………………. 7 參、研究材料與方法……………………………………………….. 9 一、研究試區及資料收集…………………………………….. 10 二、研究方法………………………………………………….. 19 肆、結果與討論…………………………………………………….. 38 一、逕流曲線值(CN)之修正結果…………………………….. 38 二、農業非點源污染模式(AGNPS)推估之結果…………….. 49 伍、結論與建議…………………………………………………….. 59 一、結論……………………………………………………….. 59 二、建議……………………………………………………….. 60 陸、參考文獻……………………………………………………….. 61 附錄 A. 不同土地利用情況下逕流曲線值與表面狀況值………... 66 附錄 B. SCS不同臨前水分狀況之CN轉換表…………………… 67 附錄 C. AGNPS參數輸入參考表…………………………………. 67 附錄 D. 不同土壤質地之K值參考表……………………………. 68 附錄 E. CN計算表…………………………………………………. 69zh_TW
dc.language.isoen_USzh_TW
dc.publisher水土保持學系zh_TW
dc.subjectSoil Conservation Service Curve Numberen_US
dc.subject逕流曲線值zh_TW
dc.subjectAgriculture Non-Point Source Pollution Modelen_US
dc.subjectAntecedent Precipitation Indexen_US
dc.subjectAntecedenten_US
dc.subject農業非點源污染模式zh_TW
dc.subject臨前降雨指數zh_TW
dc.subject臨前水分條件zh_TW
dc.subject泥砂產量zh_TW
dc.titleThe Application of Soil Conservation Service Curve Number in Agriculture Non-point Source Pollution Modelen_US
dc.title逕流曲線值應用於農業非點源污染模式之探討zh_TW
dc.typeThesis and Dissertationzh_TW
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.languageiso639-1en_US-
item.grantfulltextnone-
item.cerifentitytypePublications-
item.openairetypeThesis and Dissertation-
item.fulltextno fulltext-
Appears in Collections:水土保持學系
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