文献类型：期刊文献

中文题名：塞罕坝林场不同林型地表枯落物特性及对应火险特征研究

英文题名：Characteristics of Litter and Corresponding Fire Risk of Different Forest Types in Saihanba Forestry Center

作者：丁永全[1,2] 舒立福[1] 吴松[3] 李华[2] 孙文国[3] 王明玉[1] 赵凤君[1]

第一作者：丁永全

机构：[1]中国林业科学研究院森林生态环境与保护研究所,国家林业和草原局森林保护学重点实验室,北京100091;[2]大兴安岭地区农业林业科学研究院,黑龙江嫩江源森林生态系统国家定位观测研究站,黑龙江加格达奇165000;[3]塞罕坝机械林场总场护林防火办公室,河北承德068466

年份：2021

卷号：41

期号：4

起止页码：111-118

中文期刊名：西南林业大学学报：自然科学

收录：CSTPCD;;北大核心:【北大核心2020】；

基金：中央级公益性科研院所基本科研业务费专项资金(CAFYBB2018ZB005)资助;十三五国家重点研发计划课题(2017YFD0600106)资助;国家自然科学基金项目(31670661)资助。

语种：中文

中文关键词：人工林;地表枯落物;火险;郁闭度;林龄

外文关键词：plantation;surface litter;fire risk;canopy density;forest age

分类号：S762

摘要：以塞罕坝林场为研究区,以小班为研究单位,对不同林型地表枯落物特性进行了调查,并结合不同树种生物学特性对森林的火灾发生危险性进行分析。结果表明:林场地表枯落物普遍较厚,平均4.3 cm,其中落叶松林最厚4.9 cm,樟子松林2.1 cm,白桦林4.3 cm,其他森林3.2 cm,都具备了发生大火灾的物质基础;树种、林龄、郁闭度是影响地表枯落物厚度的主要因子。潜在地表火强度最大的森林是落叶松近熟林;最易被引燃的森林是樟子松幼龄林;最易引燃树冠火的是未修枝的落叶松林和樟子松林;最易受伤害的是落叶松幼龄林和樟子松幼龄林。
The paper takes Saihanba forest farm as the research area,the sub-compartment as the research unit.The character of different forest types litter was investigated.And the fire risks of different forests were analyzed based on litter thickness and biological characteristics of different tree species.The results showed that the thickness of litter in Saihanba forestry center were generally thick,with an average of 4.3 cm.Among them,the thickness of Larix principis-rupprechtii forests were 4.9 cm,Pinus sylvestris var.mongolica forests were 2.1 cm,Betula platyphylla forests was 4.3 cm,and other forests were 3.2 cm.All forests already have the fuel loads for large fires.Tree species,forest age and canopy density are the main factors affecting the thickness of litter.From the perspective of the thickness and characteristics of litter,L.principis-rupprechtii forests have the potential highest surface fire intensity.The most easily ignited forests are the young forests of P.sylvestris var.mongolica.Crown fires are most likely to ignite in forests of L.principis-rupprechtii and P.sylvestris var.mongolica.The most vulnerable forests are young forests of L.principis-rupprechtii and P.sylvestris var.mongolica.