行道樹傾倒脆弱度結合道路網路分析之災害防救規劃－以金門縣為例

國內在探討災害的環境脆弱度時，甚少探討行道樹受強風影響傾倒之脆弱度，金門縣曾經因為颱風帶來的強大陣風導致大量樹木傾倒，對當地災害防救事務造成重大的影響。以2016年莫蘭蒂颱風對金門縣之影響為例，雖然無重大傷亡案件，但對於金門地區之維生管線、各級產業經濟損失或緊急救護事件卻有極大之影響，可以發現對金門縣在地災害特性而言，風災（尤其是颱風）對於道路兩側所產生的風倒木是當地政府與民眾最為重視的議題之一。本研究藉由以金門縣林務所建置之林木基礎資料為基礎，透過文獻回顧與評析，以定性分析完成金門地區行道樹傾倒之脆弱度分布，再結合樹高、胸徑等樹木尺寸作為道路障礙點設定與地理資訊系統之道路網路分析，探討納入行道樹傾倒脆弱度影響下緊急救護車輛與避難場所之道路網路運作服務範圍，期望能夠對金門縣未來災害防救整備工作提供重要參考之依據。

關鍵字

環境脆弱度；行道樹；災害防救；道路網路分析

並列摘要

In the discussions on environmental vulnerability of disasters in Taiwan, the vulnerability of street trees is seldom discussed. However, a lot of trees fell down because of the strong typhoon, which greatly affected the disaster prevention and protection in Kinmen County. For example, in terms of the effects of Typhoon Meranti on Kinmen County in 2016, there were no casualties, but it had great effects on the life-support pipelines, economy or emergency rescue of Kinmen County. This shows that, as for the characteristics of the disaster in Kinmen County, the trees fallen on both sides of all roads in the wind disaster is one of the most important issues for the local government and the public. According to the basic data about trees established by the forest department of Kinmen County Government, this study completed the vulnerability distribution of the street trees in Kinmen County through literature review and evaluation, and then respectively by qualitative analysis and semi-quantitative analysis. In the end, the effects of street tree vulnerability distribution on the road network operation service scope of emergency ambulance vehicles and shelters were analyzed and discussed by combining with the geographic information system network, with the expectation of providing reference for future disaster prevention, protection and preparation.

並列關鍵字

Environmental vulnerability ； Street tree ； Disaster prevention and response ； Network analyst

國際替代計量

行道樹傾倒脆弱度結合道路網路分析之災害防救規劃－以金門縣為例

全文下載

主題瀏覽