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題 名 | 陳有蘭溪集水區之地形特性與土地利用之關係=Relationship between Topographic Characteristics and Land Use in Chen-Yu-Lan Creek Watershed |
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作 者 | 陳文福; | 書刊名 | 水土保持學報 |
卷 期 | 29:2 1997.06[民86.06] |
頁 次 | 頁137-155 |
分類號 | 436.124 |
關鍵詞 | 賀伯颱風; 地理資訊系統; 數值地形; Typhoon herb; Geographic information system; Digital terrain model; |
語 文 | 中文(Chinese) |
中文摘要 | 強烈颱風賀伯於 1996 年侵襲臺灣,其降雨記錄堪稱歷年之最,在全省各地造成 相當的災情,尤以阿里山地區及南投山區一帶為最大,而南投境內又以陳有蘭溪集水區最為 慘重,其原因除該集水區內先天之地質與地形條件本就不良外,加上人為開發行為不當,致 使災情為全臺之最。本研究利用陳有蘭溪集水區的土地利用資料,配合數值地形資料,建立 基本地理資訊庫,並以賀伯颱風災後之現況為例以探討集水區之地形特性與土地利用之關係 。研究中以所建立之地理資訊系統資料庫透過重疊分析,從不同土地管理單位所管轄土地利 用現況之差異情形,並由高程級與坡度級之分佈情況及其與土地利用現況的關聯性,用以探 討其間之關係。結果顯示,對不同土地管理單位轄區內之土地利用結果,能有數量化的具體 數字說明,可做為日後相關土地政策訂定時之參考。 |
英文摘要 | In 1996, Typhoon Herb attacked Taiwan with record-breaking rainfall and caused widespread disasters in slopeland areas, specially on A-Li-San area and the Chen-Yu-Lan Creek watershed in Nan-Tou County. Besides unfavorable geologic and topographic conditions, one of the factors caused the heaviest disasters over Taiwan has been suggested to be improper land uses. The purpose of this study was to investigate the relationship of topographic and land use characteristics to the landslide distribution of Chen-You-Lan Creek Watershed. Firstly, a GIS data base that includes land use type, digital terrain model, and the boundary of land management juridiction was established. Secondly, based on the overlay operation, the cross tables were generated for analyzing the relationship between elevation classes, slope classes, and land use types under the different land use classifications. The results indicated that the analysis processes were effective in detecting with the differences of land use types governed by different land management juridictions by quantitative indicators. |
本系統中英文摘要資訊取自各篇刊載內容。