Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/33291
DC FieldValueLanguage
dc.contributor.advisor李慶瑞zh_TW
dc.contributor.author陳文欽zh_TW
dc.date2000zh_TW
dc.date.accessioned2014-06-06T07:45:39Z-
dc.date.available2014-06-06T07:45:39Z-
dc.identifier.urihttp://hdl.handle.net/11455/33291-
dc.description.abstract二仁溪流域多屬泥岩土質,坋粒與粘粒含量高,易被懸浮、攜帶與搬運。單位面積年輸砂量居全省主要河川之冠。以USLE公式配合數值地形模型及衛星影像推估坡面泥砂產量,結果與實測值十分相近。19個子集水區中僅6個子集水區的坡面土壤流失量與降雨沖蝕指數相關,11個子集水區與土壤沖蝕指數相關,有3個子集水區與坡向因子相關。19個子集水區之坡面土壤流失量均與坡長、坡度,及覆蓋因子有顯著相關。因此坡面土壤流失量與坡度、坡長,及覆蓋因子關係密切,泥岩地區坡地開發宜以減少坡長、降低坡度、增加植生覆蓋為規劃設計方向。zh_TW
dc.description.abstractDue to steep topography, weak geology, heavy rainfall in the typhoon season, tremendous soil loss disaster usually occurs in Taiwan especially at the mudstone areas. Geographic Information System (GIS), Remote Sensing (RS), and Global Positioning System (GPS) coupled with Universal Soil Loss Equation (USLE) were used to estimate watershed soil loss in Erhjen Creek located at mudstone areas. Watershed topographic and hydrologic information of interest was also extracted automatically from Digital Terrain Model (DTM) in this study for the references of slopeland planning and design. There is no obvious difference between model estimation and field measured in watershed soil loss. Regression analysis shows that the amount of soil loss for 19 analyzed sub-watersheds: 6 sub-watersheds related to Rainfall Index, 11 sub-watersheds related to Soil Erosion Index and 3 sub-watersheds related to aspect factors. The amounts of soil loss for 19 analyzed sub-watersheds are all highly correlated to the slope length, slope, and cropping factors. The slope length, slope, and cropping are the key factors to reduce soil loss at the mudstone slope land.en_US
dc.description.tableofcontents壹、前言 貳、前人研究 一、泥岩特性有關之研究 二、土壤沖蝕之研究 二、土壤沖蝕之研究 四、地理資訊系統 參、研究材料與方法 一、試區概述 二、資料來源 三、應用軟體 四、研究流程與方法 肆、結果分析與討論 一、結果分析 二、二仁溪流域覆蓋與管理因子 三、二仁溪流域坡面土壤流失量情形 四、二仁溪流域坡面泥砂產量之探討 五、流域坡面泥砂產量與坡長之關係 六、子集水區坡面泥砂沖蝕量探討 七、二仁溪流域土地利用情況 八、多元迴歸分析 伍、結論zh_TW
dc.language.isoen_USzh_TW
dc.publisher水土保持學系zh_TW
dc.subjectusleen_US
dc.subject泥岩zh_TW
dc.subjectGeographic Information Systemen_US
dc.subjectRemote Sensingen_US
dc.subject數值地形模型zh_TW
dc.subject衛星影像zh_TW
dc.titleEstimation of Slopeland Soil Loss in Erhjen Creek Watersheden_US
dc.title二仁溪流域坡面土壤流失量推估之研究zh_TW
dc.typeThesis and Dissertationzh_TW
item.grantfulltextnone-
item.openairetypeThesis and Dissertation-
item.cerifentitytypePublications-
item.languageiso639-1en_US-
item.fulltextno fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
Appears in Collections:水土保持學系
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