云南省森林火险气象等级区划研究
投稿时间:2009-10-19  修订日期:2010-05-17  点此下载全文
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作者单位
鲁韦坤 云南省气候中心, 云南昆明 650034 
李湘 云南省气象台, 云南昆明 650034 
余凌翔 云南省气候中心, 云南昆明 650034 
戴丛蕊 云南省气候中心, 云南昆明 650034 
徐虹 云南省气候中心, 云南昆明 650034 
基金项目:公益性行业(气象)科研专项(GYHY(QX)201106024);云南省气象局业务能力建设项目(YZ201003)
中文摘要:以云南省为研究区,采用防火期内插值到每个格点的月平均降水量、月平均气温、月平均风速、月平均蒸发量、月平均相对湿度5个气象因子,以及栅格化的云南省树种和土地利用分布作为火险区划因子,通过将其标准化并赋予各因子不同的权重,利用ARCGIS的分析计算功能,对云南省防火期内进行森林火险气象等级划分,并以历史林火统计结果作为验证。从区划结果来看,12月至次年5月森林火险气象等级的发展趋势符合云南的实际情况。通过对照历史林火统计结果,该结果能反映云南省大部地区在防火期不同月份的森林火险气象等级分布规律。
中文关键词:云南  森林火险  气象等级  月区划
 
A study on meteorological forest fire risk area division in Yunnan Province
Abstract:In this study, Yunnan Province was chosen as the study area.Five meteorological factors, namely, precipitation, temperature, wind speed, evaporation and relative humidity, as well as the grid of tree species and the land use distribution in Yunnan Province were taken as fire risk factors during the forest fi re prevention period.By standardization and offering different weights to each factor, area division of meteorological forest fire risk at different rankings in Yunnan Province was made with the analysis and calculation functions of ARCGIS, which was verified by historical record of forest fires.According to the result, the development trend of meteorological forest fire risk area division is consistent with the real situation in Yunnan from December to May.This result accurately reflects the regular meteorological forest fire levels in different months during the forest fire prevention period by comparing with the history of forest fire records, which shows its practical value.
keywords:Yunnan  forest fire risk  meteorological class  monthly division
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