| 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 1 000 hm
2
,
对控制面积大于等于 1 000 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 1 000 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 1 000 hm
2 以下的既定目标。 |
| 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 |
| DOI： |
| 分类号: |
| 基金项目: |
|
| Discussion on Spatial Layout and Planning of Biological Fireproof Forest Belt Barrier Network at County Level in Guangdong Province |
|
Luo Hao1, Zhang Ping2, Li Shirong1, XUE Dongdong1, Yu Ziying1
|
|
1.Guangdong Lingnanyuan Exploration and Desgin Co Ltd;2.Guangdong Eco-engineering Polytechnic
|
| Abstract: |
| 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 1 000 hm
2
. Scientific planning for firebreak vegetation was implemented for forested areas exceeding
1 000 hm
2
. The concept of “ flammability of dominant tree species” was introduced, and concurrently, fireresistant 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 1 000 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 “flammability of dominant tree species” was introduced. The established objective of reducing the controlled area of the firebreak system in a certain county to below 1 000 hm
was ultimately achieved. Each route exhibited both scientific and rational characteristics. The impleme
2
ntation of
a ring-shaped forest belt design or planar full-coverage design of firebreak vegetation on grave mountain, using
C. oleifera economic tree species or C. sinensis economic tree species, effectively harnessed the ecological, fire
prevention, and economic benefits of the firebreak belt. The comprehensive benefits were notably outstanding. |
| Key words: forest fire prevention bio-fireproof forest belt barrier network planning layout flammability of dominant tree species grave mountain |
