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加拿大森林火险气候指数系统(FWI)的原理及应用 被引量:23

Canadian forest fire weather index(FWI) system:a review
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摘要 森林火险等级预报系统对预测预报森林火灾十分重要。加拿大森林火险等级系统(CFFDRS)是当前世界上发展最完善、应用最广泛的系统之一,是世界上唯一能适应从区域到全球任何尺度的系统,加拿大森林火险气候指数(FWI)系统是CFFDRS的重要组成部分。加拿大火险气候指数系统以时滞-平衡含水率理论为基础,通过天气条件的变化计算可燃物含水率的变化,然后根据不同位置或大小的可燃物含水率划分森林潜在火险等级。从FWI的发展状况、基本结构、程序,以及优点和局限性作了简单的描述,并讨论了如何在基于FWI技术的基础上发展中国的森林火险等级系统。 To forecast forest fires,a forest fire danger rating system is important.The Canadian Forest Fire Danger Rating System(CFFDRS) is currently one of the most widely used and complete systems in the world and is the only system that can adapt to any scale from regional to global levels.Within CFFDRS,the Canadian Forest Fire Weather Index(FWI) System is the most important component.FWI,based on a theory utilizing time lag and equilibrium moisture content,calculates changes in fuel moisture according to weather conditions and then determines the potential fire danger rating by location or size of forest fuel.This study provides a simple introduction to development of the FWI system along with its basic structure and programs as well as its strengths and limitations.Developing a forest fire danger rating system for China based on FWI technology is also discussed.
出处 《浙江农林大学学报》 CAS CSCD 北大核心 2011年第2期314-318,共5页 Journal of Zhejiang A&F University
基金 国家重点基础研究发展计划(973计划)项目(2005CB422207 2005CB422208) 国家自然科学基金资助项目(40671132) 科技部国际合作项目(200073819) 科技部数据共享平台建设项目(2006DKA32300-08) 科技基础性工作专项(2007FY110300-08) 浙江省重大科技专项(2008C13042)
关键词 森林保护学 FWI系统 细小可燃物湿度码 粗腐殖质湿度码 干旱码 森林防火 综述 forest protection forest fire weather index(FWI) system fine fuel moisture code(FFMC) duff moisture code(DMC) drought code(DC) forest fire control review
作者简介 信晓颖,从事森林生态模型等研究:E-mail:fengxinzi-z@163.com 通信作者:江洪,教授,博士生导师.从事生态系统生态学、环境遥感、生态模型与模拟等研究。E-mail:hongjiang.china@gmail.com
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参考文献22

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二级参考文献29

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