云南清华洞国家森林公园森林资源结构及火险等级评价

Forest Resource Structure and Fire Danger Rating Evaluation of Qinghua Cave National Forest Park in Yunnan Province

森林火险等级的评价对实际防火工作具有重要的指导意义。文章基于GIS技术,对云南清华洞国家森林公园的森林资源结构进行了统计分析,依据中国林业行业标准《全国森林火险区划等级》对该区域森林火险等级进行评价。结果表明:森林公园土地利用结构类型以林地为主,森林覆盖率高达85%以上,有林地和灌木林地面积之和占林地面积的90%以上;水目山片区云南松和华山松面积占有林地面积的80%,清水河片区云南松面积占有林地面积的49.31%,栎类占31.78%;主要乔木和灌木均为易燃树种;森林公园火险等级评定为Ⅰ级,为高火险等级。

The evaluation of forest fire danger rating has important guiding significance for the actual fire prevention work.Based on GIS technology,this paper makes a statistical analysis of the forest resource structure of Qinghua cave National Forest Park in Yunnan Province,and evaluates the forest fire danger rating of this area according to the“national forest fire division level”,which is the Chinese forestry industry standard.Result shows that forest land is the main type of land structure in Forest Park,the forest coverage rate is over 85%,and the total area of forest land and shrub land accounts for more than 90%;the area of Pinus yunnanensis and Pinus armandii in Shuimu Mountain area accounts for 80%,the area of Pinus yunnanensis in Qingshui River area accounts for 49.31%and the area of oak accounts for 31.78%;the main trees and shrubs are inflammable trees Species;the fire danger rating of Forest Park is grade I,which is a high fire risk rating.