摘要
森林火险区划能为森林火险预测预报和森林防火决策提供科学依据.以广州市为例,建立森林火险区划评判指标体系,从森林防火信息系统的基础数据库中提取森林火险区划因子的属性数据,并对样地数据进行标准化,用聚类分析法进行分析.结果表明:可将广州市森林火险区划为3大类,样地1、2、3和9火险最高,4、7、10、11和15次之,5、6、8、12、13和14火险最低.
Grade classification of forest fire hazards provides a scientific basis to forest fire forecasting and decision-making in forest protection. Taking Guangzhou City as an example, this paper establishes an evaluation index system for fire-hazard grade classification. It divides the city into many sample plots and standardizes their data by using the attribute data and various factors from the database of Guangzhou forest fire prevention information system. And then by employing cluster analysis method, it classifies Guangzhou＇s forest fire hazards into three categories. Results show that sample plots 1, 2, 3 and 9 have the highest fire risk; sample plots 4, 7, 10, 11 and 15 have low fire risk~ and sample plots 5, 6, 8, 12, 13 and 14 have the lowest fire risk.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2008年第1期127-129,133,共4页
Journal of Central South University of Forestry & Technology
基金
中南林业科技大学青年科学基金重点项目(07005A)工程研究
关键词
森林保护学
聚类分析法
森林火灾
火险区划
火险因子
forest protection science
cluster analysis method
forest fire
fire hazard classification
fire hazard factor
