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秦岭南坡华山松林潜在火险性影响因子的研究 被引量:1

The Potential Fire Hazards to Pinus armandii Forests on the Southern Slope of Qinling Mountains
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摘要 应用37块标准地、185个样方的调查资料,在地表总易燃可燃物载量、枯落物含水率为10%时的易燃可燃物总含水量2个因子上,对秦岭南坡华山松林的5个林型进行了潜在火险性排序;以山坡下部华山松林型为代表,结合测定树冠层易燃可燃物密度,研究了林龄、针阀混交比对地表火和树冠火潜在火险性的影响,对此并进行了数量化趋势描述;文中同时也探讨了林分潜在火险性的研究方法. Based on the data from 37 sample plots and 185 quadrats,the potential firehazards to 5 types of Pinus armandii forests in Qinling Mountains are sequenced at the level of considering two factors :the quantity of the surface inflammables and their water storage when the moisture content of litter is 10%. Meanwhile, the density of crown infammables of standard P. armandii forests at the bottom of the slope is measured to revealthe influences of ages and the radio of mixed trees on the potential hazards of surface andcrown fires,and a quantitative description of the influences is given. Methods of researching into potential forest fire hazards are also discussed in this paper.
出处 《中南林学院学报》 CSCD 1998年第2期39-45,共7页 Journal of Central South Forestry University
关键词 华山松林 潜在火险性 林火类型 规律 Pinus armandii forests potential fire hazards forest fire types law
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