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題名 | 國道路廊對沿線集水區地表逕流影響之研究=A Study of Surface Runoff Changes Induced by Highway Corridor Constructions |
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作者 | 林裕益; 何世華; 周文杰; | 書刊名 | 水土保持學報 |
卷期 | 40:4 2008.12[民97.12] |
頁次 | 頁467-479 |
分類號 | 436.124 |
關鍵詞 | 國道路廊; 地表逕流; 逕流係數; 常態化差異植生指標; Highway corridor; Surface runoff; Normalized difference vegetation index; |
語文 | 中文(Chinese) |
中文摘要 | 國道路廊穿越山川水系,係以廊帶方式布設,並依路線線形設計標準及現地地形、地質、水文環境、路權用地取得等之實際狀況,分別採用路堤、路塹、半堤半塹、橋梁、隧道等方式構築,本研究針對國道路廊與地表逕流變化之關係加以探討,並以其成果做為後續地表逕流相關設計之參考建議。研究中以國道3號高速公路為主體,利用水土保持技術規範中有相關之地文與水文因子為分析對象,以探討3號高速公路路廊對沿線集水區地表逕流之影響。另以法國SPOT衛星影像計算常態化差異植生指標(Normalized Difference Vegetation Index, NDVI),進而以其綠植生量推導逕流係數,取代傳統以逕流係數表推估的主觀方式。研究案例分別就國道路廊對地文水文變化與大面積挖填對逕流係數變化進行探討,提出適當的理論研析,並建置其電腦模組以做為地表水文環境變化之相關預測,期供決策與規劃設計參考。 |
英文摘要 | According to design criteria, topographic, geologic, hydrologic conditions, and land property ownership, the national highways are constructed over mountains and rivers by corridor pattern using embankment, entrenchment, combination, bridge and tunnel. This study focused on the relationship between highway corridor and surface runoff changes. The results can be provided as a basis for related designs on surface runoff control. In this study, the Formosa Highway was chosen as the study area. The discussed hydrologic and geomorphic factors in the Soil and Water Conservation Technical Regulations were used to indicate the influences caused by highway construction. Meanwhile, the remote sense images from French Système Probatoire de l'Observation de la Terre (SPOT) were employed to calculate Normalized Difference Vegetation Index (NDVI). A method was proposed to estimate the runoff coefficient derived from this green biomass index. The proposed method can substitute for the traditional subjective judgment from runoff coefficient tables. The case examples are surface hydrologic and geomorphic response changes caused by highway construction and runoff coefficient changes caused by large quantity excavation and fills. The suitable proposed theorems have been integrated and established a computer package to predict the changes of surface hydrologic environment. The simulated results can be provided to authorities for policy-making. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。