桂西南松栎林火行为研究及碳排放计量  

Fire behavior and carbon emission of Pine Oak Forests in Southwest Guangxi of China

作　　者：潘登[1,2] 张合平 潘高[1,2] 易浪 

机构地区：[1]中南林业科技大学,湖南长沙410004 [2]南方林业生态技术国家工程实验室,湖南长沙410004

出　　处：《自然灾害学报》2017年第5期51-61,共11页Journal of Natural Disasters

基　　金：国家林业公益性行业专项(201204512);中南林业科技大学研究生科技创新基金资助项目(CX2015A03);湖南省研究生创新项目(CX2015B287)~~

摘　　要：利用桂西南地区不同类型马尾松和栎林的冠层可燃物、地表可燃物、立地条件和气候因子等调查数据,运用Behave Plus 5.0.5和Consume 3.0模型,分析不同林型林火行为趋势,并计算各林分过火后可燃物消耗量和含碳类气体排放量。结果表明:不同林分可燃物载量分布差异显著,马尾松纯林在风速大于15 m·s-1时,极易由地表火转化为树冠火,马尾松-红锥-潺槁树林在风速大于20 m·s-1时,极易转化为树冠火,马尾松-石栎林、石栎-马尾松林和大叶栎纯林可形成地表火,但不易发生树冠火。研究可为进一步了解森林火灾对区域气候变化的影响提供基础数据。Two methods which are Behave plus 5. 0. 5 and Consume 3. 0 were applied to establish fire behavior prediction and carbon emission for Southwest Guangxi. The fuel loading spatial distribution,site conditions and climatic factors collected in southern Guangxi were used in a case study to simulate different forest fire behavior tendency,fuel consumption and carbon emission by using Behave Plus model and Consume model,respectively. In different stands,there existed significant difference in the fuel loading,Pinus massoniana forest not only are inclined to lead to surface fire,but also,the surface fire could be easily transformed into crown fire when wind speed over15 m·s-1,and Pinus massoniana-Castanopsis hystrix-Litsea glutinosa forest could be easily transformed into crown fire when wind speed over 20 m·s-1,while Pinus massoniana-Lithocarpus pasania,Lithocarpus pasania-Pinus massoniana,and Quercus griffithii forests are likely to lead to surface fire but not crown fire. This study would provide some basic data for the influence of regional climatic variation caused by forest fire.

关 键 词：可燃物载量 BehavePlus 林火行为 碳排放 Consume 

分 类 号：S762.1[农业科学—森林保护学] X9[农业科学—林学]