广东省县级生物防火林带阻隔网空间布局与规划  

Discussion on Spatial Layout and Planning of Biological Fireproof Forest Belt Barrier Network at County Level in Guangdong Province

作　　者：罗號 张萍 李世荣 薛冬冬 余紫莹 LUO Hao;ZHANG Ping;LI Shirong;XUE Dongdong;YU Ziying(Guangdong Lingnanyuan Exploration and Desgin Co.,Ltd.,Guangzhou,Guangdong 510599,China;Guangdong Eco-Engineering Polytechnic,Guangzhou,Guangdong 510520,China)

机构地区：[1]广东省岭南院勘察设计有限公司,广东广州510599 [2]广东生态工程职业学院,广东广州510520

出　　处：《林业与环境科学》2024年第3期72-79,共8页Forestry and Environmental Science

摘　　要：广东省属山地丘陵地区,存在重要火源点与林区接触面广、火情复杂多样等特点,建设以生物防火林带为主体的林火阻隔系统是广东省森林防火重要手段之一。为了有效提升广东省生物防火林带阻隔网建设质量,文章以广东省某县区为例,以林火阻隔系统控制面积为主要衡量指标,设置值为1000 hm^(2),对控制面积大于等于1000 hm^(2)的林地进行生物防火林带规划。规划创新引入“优势树种可燃性”的概念,对易燃性树种进行“包围式规划”,以难燃性树种为节点进行“穿越式规划”,并按照坟墓集中程度选取经济树种油茶Camellia oleifera和茶C.sinensis对坟墓山进行环状包围式林带设计或面状全面覆盖式设计,将可能发生的火灾控制在有限的范围内。该县区最终建设生物防火林带185 km,将所有林地林火阻隔系统控制面积降低至1000 hm^(2)以下,其中最大控制面积为998 hm^(2),完成了降低林火阻隔系统控制面积至1000 hm^(2)以下的既定目标。Guangdong province is a mountainous and hilly area,which has the characteristics of wide contact between important fire sources and forest areas,complex and diverse fire conditions.The construction of a forest fire barrier system with a biological fire prevention forest belt as the main body is one of the important means of forest fire prevention in Guangdong province.In order to effectively improve the construction quality of biological fire prevention forest belt barrier network in Guangdong province,this paper takes the construction of biological fire prevention forest belt in a county of Guangdong province as an example to explore the spatial layout and planning method of biological fire prevention forest belt barrier network,in order to provide ideas and guidance for the construction of biological fire prevention forest belt in various counties and districts of Guangdong province.The firebreak system was employed as the primary metric to regulate the controlled area,with a set value of 1000 hm^(2).Scientific planning for firebreak vegetation was implemented for forested areas exceeding 1000 hm^(2).The concept of“flammability of dominant tree species”was introduced,and concurrently,fire-resistant economic tree species were planted in the grave mountain to effectively confine potential wildfires within a limited range.The results indicated that a final confirmation was made to establish a 185 km long firebreak,effectively reducing the controlled area of the firebreak system in all forested areas to below 1000 hm^(2).The maximum controlled area was determined to be 998 hm^(2),with a specific focus on the flammability of tree species and their locations.Traditional burial sites were categorized based on concentration levels,and Ring-shaped forest belt design or planar full-coverage design of firebreak vegetation using Camellia oleifera economic tree species or C.sinensis economic tree species was applied to the grave mountain.Based on an accurate understanding of the current data,the innovative concept of“

关 键 词：森林防火 生物防火林带阻隔网 规划布局 优势树种可燃性 坟墓山 

分 类 号：S762.3[农业科学—森林保护学]