環境地質敏感度分析自動化系統開發

Automation in Mapping of Environmental Sensitive Geological Features

黃南輝(Richard Hwang) ； 黃建忠(Chien-Chung Huang) ； 陳宏宇(Hongey Chen) ； 李錫堤(Chyi-Tyi Lee) ； 潘國樑(Kuo-Liang Pan)

《地工技術》 90期 (2002/04) Pp. 55-62

https://doi.org/10.30140/SG.200204.0005

摘要

由於坡地開發與日俱增，近年來肇因邊坡破壞所引起的災害已造成相當大的損失。姑且不論邊坡破壞原因究竟為天然因素或人為因素，事實上從過去案例可知，大部分都發生在地質較脆弱區域。因此，利用既有之環境地質資料，快速篩選出環境地質敏感度較高之區域，並提供較完善之防範措施或避免其開發行為，自然可將災害降至最低。本系統開發之目的係利用己建立的山坡地地質環境基本資料，運用地理資訊系統空間分析功能及電腦快速計算能力，快速而有效的篩選出環境地質敏感度較高之區域，以提供規劃國土開發利用及研擬防災與減災措施之參考。

關鍵字

邊坡 ； 地理資訊系統

並列摘要

As population grows and lands become scarce, developments tend to stretch to hill slopes and natural hazards, such as landslides and debris flow, frequently result in losses of lives and properties. It will thus be helpful to identify those areas which are particularly vulnerable to environmental factors, such as rainfalls, earthquakes, etc. so precautionary or preventive measures can be taken to avoid disasters from happening. Natural hazards usually can be related to geological features and their potential risks can be assessed if sufficient information is available. A geographic information system has been developed to compile geological data which are contributing factors to nature hazards and to compute the environment sensitivity indices of different areas. Based on these indices, areas with high risk can be located and maps can be prepared with these areas properly identified.

並列關鍵字

hill slopes ； geographic information system (GIS)