承德县人工针叶林地表枯死可燃物参数估测及潜在地表火行为评价  

Estimation to Dead Surface Combustible Parameters and Evaluation of Potential Surface Fire Behavior of Artificial Coniferous Forests in Chengde County

作　　者：高宝嘉[1,2] 张桂娟[2] 周国娜[2] 张鸿军[3] 于志勇 李利学 迟宝利 

机构地区：[1]河北北方学院,张家口075000 [2]河北农业大学,保定071000 [3]平泉县林业局,平泉067500 [4]承德县林业局,承德067400

出　　处：《林业科学》2009年第10期163-167,共5页Scientia Silvae Sinicae

基　　金：河北省重点林业科研项目(0710332)的部分内容

摘　　要：The dead surface combustibles of artificial coniferous forests in Chengde were focused in this paper.Predicting models between fuel loading and the stand and landform factors,as well as between water ratio of combustibles and weather factors were established with a regression analysis method.The models were effective in calculating fuel loading and water ratio.Fuel loading,water ratio and thickness of combustibles are regarded as the parameters of potential surface fire behavior.Based on a cluster analysis,the potential surface fire behavior of different forest lands was divided into 3 classes:strong,medium,or weak surface fire.The results indicated that most of artificial coniferous forests were in the status of medium surface fire,the risk of surface fire of mixed forests was lower than pure forests,and that of sapling forests and half-mature forests was higher than near-mature forests.The dead surface combustibles of artificial coniferous forests in Chengde were focused in this paper.Predicting models between fuel loading and the stand and landform factors,as well as between water ratio of combustibles and weather factors were established with a regression analysis method.The models were effective in calculating fuel loading and water ratio.Fuel loading,water ratio and thickness of combustibles are regarded as the parameters of potential surface fire behavior.Based on a cluster analysis,the potential surface fire behavior of different forest lands was divided into 3 classes：strong,medium,or weak surface fire.The results indicated that most of artificial coniferous forests were in the status of medium surface fire,the risk of surface fire of mixed forests was lower than pure forests,and that of sapling forests and half-mature forests was higher than near-mature forests.

关 键 词：人工针叶林 可燃物载量 可燃物含水率 潜在地表火行为 

分 类 号：S762.3[农业科学—森林保护学]