Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/34149
DC FieldValueLanguage
dc.contributor.advisorChao-Yuan Linen_US
dc.contributor.advisor林昭遠zh_TW
dc.contributor.author胡婷雅zh_TW
dc.contributor.authorHu, Ting-Yaen_US
dc.date2002zh_TW
dc.date.accessioned2014-06-06T07:47:15Z-
dc.date.available2014-06-06T07:47:15Z-
dc.identifier.urihttp://hdl.handle.net/11455/34149-
dc.description.abstractThe 921 earthquake caused not only heavy casualties and extensive damage to building, but also a large number of landslides in Central Taiwan. Due to scattered distribution of the landslides, satellite images were applied to rapidly monitor and evaluate vegetation recovery for the large-scale landslides. The SPOT images of the Ninety-nine Peak area located at Wu River, the Xueshankeng and Wushikeng watersheds at Daan River and the watershed between Tianlun and Techi dam along Dajia River were chosen to identify the spatial distribution of the landslides. Normalized Difference Vegetation Index (NDVI) of the images was used to calculate vegetation recovery rate (VRR) of the landslides. Universal Soil Loss Equation combined with sediment delivery ratio was used to assess the slopeland sediment yield at watershed scale. Results show that VRR of the landslides at the Ninety-nine Peak area and in the other investigated watersheds are 36% and —10% respectively. The calculation of NDVI of SPOT image taken at the time of one and a half-year after the quake was used for calculated the soil erosion. Annual erosion depth of the landslides at the Ninety-nine Peak area, the Xueshankeng and Wushikeng watersheds, and the watershed between Tianlun and Techi dam are 4.8 cm/yr., 4.4 cm/yr., and 3.5 cm/yr. respectively. Cluster analysis for VRR of the landslides at the Ninety-nine Peak area can be grouped into three categories (good, ordinary and bad). Terrain analysis shows that the landslides whose VRR belong to bad class were located mostly at steep slope (55~100%) and northern aspect. Besides, site analysis shows that the landslides whose VRR belong to bad class were located mostly at ridge areas.en_US
dc.description.abstract921大地震除造成人員大量傷亡與許多房屋毀損之外,亦導致台灣中部地區多處山坡地發生山崩。由於崩塌區位分佈遼闊且零散,利用遙測衛星影像能快速地監測、評估大範圍崩塌區位之植生復育情形。 本研究以九九峰、大安溪支流之雪山坑溪和烏石坑溪集水區及大甲溪上游自天輪起至德基大壩間之集水區等三個地區為對象,利用地震前後期SPOT衛星影像進行崩塌區位判釋,再以地震一年半後之衛星影像進行崩塌區位植生復育率分析,並利用通用土壤流失公式,配合坡面泥砂遞移率分析,來推估崩塌區位於地震前、地震後及一年半後等三個時期植生覆蓋情形下之坡面泥砂產量及平均沖蝕深度。 分析結果得知,地震一年半後,九九峰崩塌區位之植生復育率平均值約達36%,顯示其植被已逐漸生長恢復,而其年平均沖蝕深度約為4.8cm/yr;雪山坑溪、烏石坑溪及天輪至德基大壩間之集水區崩塌區位之植生復育率平均值則皆約為—10%,顯示其植生復育情形有變差之趨勢,其年平均沖蝕深度則分別約為4.4cm/yr及3.5cm/yr。另將九九峰崩塌區位之植生復育率以群集分析法分為優、普通及差三個等級,進一步對等級屬於「差」者之崩塌區位進行坡度、坡向及稜線與濱水區位分析,結果得知其植生復育率等級屬於「差」者之區位主要分佈於坡度55∼100%之間、北坡向及稜線區。zh_TW
dc.description.tableofcontents目錄 中文摘要 Ⅰ 英文摘要 Ⅱ 目錄 Ⅳ 圖次 Ⅵ 表次 Ⅷ 壹、 前言......... 1 貳、 前人研究..... 2 一、遙感探測與SPOT衛星影像之相關應用.........2 (一)遙感探測.............2 (二)法國SPOT衛星影像.....2 (三)遙測之相關應用.......4 二、常態化差異植生指標.....6 三、地震誘發之崩塌地特性及其植生復育.........8 (一)地震誘發之崩塌地特性..........8 (二)崩塌地之植生復育..............9 四、土壤流失量與泥砂產量............12 (一)通用土壤流失公式..............12 (二)泥砂遞移率及泥砂產量..........15 參、 研究材料與方法........ 16 一、研究地區概述...........16 (一)位置.........16 (二)地質.........17 二、研究材料及流程..........20 (一)研究材料..............20 (二)研究流程..............22 三、分析方法................23 (一)地形分析..............23 (二)常態化差異植生指標與植生覆蓋因子(C)分析........26 (三)崩塌區位判釋..........30 (四)植生復育率分析........30 (五)坡面泥砂產量推估......31 (六)稜線及濱水區位萃取....34 肆、結果與討論...............35 一、崩塌區位地形分析........35 二、植生復育率分析..........39 三、崩塌區位坡面泥砂產量分析........43 四、植生復育率低之區位探討..........45 伍、結論與建議........52 參考文獻..............53 圖次 圖3-1 研究地區位置圖...............17 圖3-2 研究地區地質分佈圖...........19 圖3-3 研究地區SPOT衛星影像(1999/4/1)......20 圖3-4 研究地區SPOT衛星影像(1999/9/27).....21 圖3-5 研究地區SPOT衛星影像(2001/3/5)......21 圖3-6 研究流程圖 ........22 圖3-7 3×3移動視窗示意圖..........23 圖3-8 坡面之坡度計算示意圖.........25 圖3-9a 研究地區植生覆蓋因子(C)分佈圖(1999/4/1)-Ⅰ...27 圖3-9b 研究地區植生覆蓋因子(C)分佈圖(1999/4/1)-Ⅱ...27 圖3-10a 研究地區植生覆蓋因子(C)分佈圖(1999/9/27)-Ⅰ..28 圖3-10b 研究地區植生覆蓋因子(C)分佈圖(1999/9/27)-Ⅱ..28 圖3-11a 研究地區植生覆蓋因子(C)分佈圖(2001/3/5)-Ⅰ...29 圖3-11b 研究地區植生覆蓋因子(C)分佈圖(2001/3/5)-Ⅱ...29 圖3-12a 坡面泥砂遞移率(SDR)分佈圖-Ⅰ.......33 圖3-12b 坡面泥砂遞移率(SDR)分佈圖-Ⅱ.......33 圖3-13 稜線及濱水區位分佈圖........ 34 圖4-1a 崩塌區位分佈圖-Ⅰ............36 圖4-1b 崩塌區位分佈圖-Ⅱ............36 圖4-2 崩塌區位之坡度分佈...........37 圖4-3 崩塌區位之坡向分佈...........38 圖4-4 九九峰崩塌區位C值及VRR頻度分佈圖..... 40 圖4-5 雪山坑溪及烏石坑溪集水區崩塌區位C值及VRR頻度分佈圖...41 圖4-6 天輪至德基大壩間之集水區崩塌區位C值及VRR頻度分佈圖...42 圖4-7 崩塌區位植生復育率累積頻度分佈圖..... 45 圖4-8 植生復育惡化區位(VRR<0%)坡度分佈圖.........46 圖4-9 植生復育惡化區位(VRR<0%)坡向分佈圖.........47 圖4-10 植生復育惡化率坡度分佈圖.... 47 圖4-11 植生復育惡化率坡向分佈圖.... 48 圖4-12 九九峰崩塌區位植生復育率等級分佈圖... 49 圖4-13 九九峰植生復育率等級屬於「差」者之坡度分佈圖...50 圖4-14 九九峰植生復育率等級屬於「差」者之坡向分佈圖...50 圖4-15 九九峰植生復育率等級屬於「差」者之位置分佈圖...51 表次 表2-1 植生對邊坡之影響....10 表4-1 崩塌區位坡面泥砂產量及平均沖蝕深度之分析.......44 表4-2 九九峰崩塌區位植生復育率等級面積分佈表.........48zh_TW
dc.language.isoen_USzh_TW
dc.publisher水土保持學系zh_TW
dc.subject崩塌地zh_TW
dc.subjectLandslideen_US
dc.subject植生復育率zh_TW
dc.subject坡面泥砂產量zh_TW
dc.subjectVegetation Recovery Rateen_US
dc.subjectSlopeland Sediment Yielden_US
dc.title921地震崩塌地植生復育與坡面泥砂產量之研究zh_TW
dc.titleA Study of Vegetation Recovery and Slopeland Sediment Yield of Landslides Caused by 921 Earthquakeen_US
dc.typeThesis and Dissertationzh_TW
item.openairetypeThesis and Dissertation-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextnone-
item.fulltextno fulltext-
item.cerifentitytypePublications-
item.languageiso639-1en_US-
Appears in Collections:水土保持學系
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