四川省林草火险等级评价  

Study of evaluation of forest and grass fire risk grade in Sichuan Province

作　　者：杨存建[1] 冯凉[2] 杨洪忠 程熙[1] 

机构地区：[1]四川师范大学西南土地资源评价与监测教育部重点实验室遥感与GIS应用研究中心,成都610068 [2]四川省天然林保护工程管理中心,成都610081 [3]四川省天全县天然林保护办公室,天全625500

出　　处：《地理研究》2010年第6期980-988,共9页Geographical Research

基　　金：国家自然科学基金项目(40771144);四川省青年基金项目(08ZQ026-47);国家863项目(2009AA12Z140)

摘　　要：把四川建设成为长江上游生态屏障是四川省的一项重大战略决策。森林和草地资源防火是生态屏障和生态安全保障体系建设的重要内容。林草火险等级的评价对森林和草地资源的防火具有重要的意义。本文利用遥感、GIS和层次分析法对四川省林草火险等级进行了评价。研究表明,就全省而言,火险等级为5级的占0.8%,为4级的占20.2%,为3级的占47.2%;极高火险区主要出现在甘孜州、凉山州、阿坝州、攀枝花市和雅安市,其所占面积百分比分别为49.2%、24.7%、15.7%、3.5%和3.4%;高火险区主要出现在甘孜州、凉山州和阿坝州,其所占面积百分比共达到了72.1%。建议将甘孜州、凉山州、阿坝州、攀枝花以及雅安市作为四川省林草防火的重点区域,在防火的人、财、物上给予优先考虑。It is an important strategy to build Sichuan into the ecological shelter of the upper Yangtze River.As the forest and grass fire prevention is one of the important parts of the construction of ecological shelter and ecological security indemnity in Sichuan Province,the evaluation of the forest and grass fire risk is of great significance to the forest and grass fire prevention.Therefore,the forest and grass fire risk grade was evaluated by using remote sensing,GIS and Analytic Hierarchy Process（AHP） in Sichuan Province.The study shows： the fifth fire risk grade accounts for 0.8%,the fourth accounts for 20.2%,and the third grade,47.2% in Sichuan Province.The highest fire risk is mainly distributed in Ganzi,Liangshan,Aba,Panzhihua and Ya＇an,accounting for 49.2%,24.7%,15.7%,3.5% and 3.4% respectively of the total area in the risk zone.The high fire risk is mainly distributed in the prefectures of Ganzi,Liangshan and Aba,which account for 72.1% of the total area in the risk region.We suggest that Ganzi,Liangshan,Aba,Panzhihua and Ya＇an should be regarded as the key areas of the forest and grass fire prevention and should be given priority in getting labors,funds and goods for forest and grass fire prevention.

关 键 词：林草火险 等级评价 指标体系 层次分析法 四川 

分 类 号：S762[农业科学—森林保护学]