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| 題 名 | 集水區崩塌地治理優選之研究--以林邊溪集水區為例=Optimization of Treatment Priority for Watershed Landslides:A Case Study of Linbian Creek Watershed |
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| 作 者 | 林昭遠; 林峻達; | 書刊名 | 水土保持學報 |
| 卷 期 | 43:4 2011.12[民100.12] |
| 頁 次 | 頁449-468 |
| 分類號 | 436.124 |
| 關鍵詞 | 集水區崩塌地; 影像處理; 治理優選; Watershed landslide; Image processing; Treatment priority; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 民國98 年莫拉克颱風帶來豐沛雨量,重創台灣中南部地區,造成南投縣信義鄉、嘉義縣 阿里山鄉、高雄縣高屏溪與荖濃溪集水區等國有林地之崩塌災害,危害下游人民生命財產安全 與國家基礎建設,災後復建與整治工程實為刻不容緩。南投、嘉義、屏東與台東等四個林區管 理處國有林班地範圍,總面積約為754,612 公頃,推估莫拉克颱風造成之崩塌面積約為25,637 公頃,土砂量約為15 億立方公尺,幅員廣闊治理不易,考量各林管處崩塌最為嚴重之林班地, 依其下游所對應最鄰近之村落為保全對象劃定集水區。本研究以林邊溪集水區為例,應用動態 萃取崩塌地系統,萃取地文水文資訊並建立與保全對象之關聯性,評估治理區位重點之優先順 序,期望以極短時間內將有限人力與經費,發揮最高之成效。 |
| 英文摘要 | Typhoon Morakot brought abundant rainfall and seriously hit central and southern Taiwan. Several state-owned forest lands in Sinyi Township of Nantou County, Alishan Township of Chiayi County, Creek watershed of Kaoping and Laonong in Kaohsiung County suffered landslide hazards. Safety of life and property in downstream areas and national infrastructure are all threatened. The post-disaster reconstruction and treatment projects are indeed to be of great urgency. The governing ranges of Forest District Office including Nantou, Chiayi, Pingtung and Taitung for the state-owned forest land have the total area of about 754,612 hectares. Among them, area of Morakot induced landslides is 25,637 hectares and the sediment yield is about 1.5x109m3. Due to the vast areas need to be treated,only the severe sites of landslides are selected and their downstream nearby villages are considered to delineate the interest watershed. This study took Linbian Creek watershed as an example to extract the information of morphology and hydrology, to establish the orientation of protected targets, and to optimize the sites of priority treatment for the hope of achieving the most benefits in a short period of time and limited funds. |
本系統中英文摘要資訊取自各篇刊載內容。