| 连云港花果山森林景区高分辨率火险区划 |
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| 引用本文： | 费鲜芸,高祥伟,庄文峰,王红波.连云港花果山森林景区高分辨率火险区划[J].林业资源管理,2011(5). |
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| 作者姓名： | 费鲜芸 高祥伟 庄文峰 王红波 |
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| 作者单位： | 1. 淮海工学院测绘工程学院,江苏连云港 222005;江苏省海洋资源开发研究院,江苏连云港 222001
2. 连云港市花果山风景区管理处,江苏连云港,222061 |
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| 基金项目： | 江苏省自然科学基金"国家级森林风景区高分辨率潜在火险等级评价研究"，江苏省高校"青蓝工程" |
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| 摘 要： | 利用10cm高空间分辨率航空遥感影像,在森林资源二类调查的基础上,获取研究区的可燃物类型及其特征信息;利用1∶10 000地形图获取地形因子信息。在此基础之上,通过加权叠置法计算火险指数,并将研究区划分为Ⅰ级(没有危险)、Ⅱ级(低度危险)、Ⅲ级(中度危险)、Ⅳ级(高度危险)、Ⅴ级(极度危险)等5个火险区划。结果表明:Ⅰ级火险区面积最小,占研究区总面积3.98%;Ⅱ级火险区面积最大,占32.25%;Ⅲ级火险区面积占21.05%;Ⅳ级和Ⅴ级火险区面积分别占22.14%和20.58%,两者之和较大,占研究区总面积的42.72%,研究区防火任务艰巨。研究区内可燃物类型对火险等级划分起重要作用,其中麻栎和茶树在森林防火工作中发挥重要作用;松树、竹林和荒草地是防火的重点。
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| 关 键 词： | 连云港花果山 高空间分辨率 航空遥感影像 火险区划 地形因子 |
Study on High Spatial Resolution Forest Fire Risk Zoning in Lianyungang Huaguo Mountain Scenic Spot |
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| FEI Xianyun,GAO Xiangwei,ZHUANG Wenfeng,WANG Hongbo.Study on High Spatial Resolution Forest Fire Risk Zoning in Lianyungang Huaguo Mountain Scenic Spot[J].Forest Resources Management,2011(5). |
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| Authors: | FEI Xianyun GAO Xiangwei ZHUANG Wenfeng WANG Hongbo |
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| Abstract: | Using 10cm aerial images,based on forest resources surveying,the forest vegetation types and their characteristics were obtained in this paper.At the same time,various topography factors were obtained by the digital DEM.Fire risk indexes were calculated by weighted overlay method and the forest area was divided into five level fire risk zones.They are level Ⅰ(no danger),level Ⅱ(low danger),level Ⅲ(moderate danger),level Ⅳ(high danger),and level Ⅴ(extremely high danger).The result showed that:1) level Ⅰ risk zone had least area quantity that accounted for 3.98% of total study area;2) level Ⅱ risk zone owned largest area quantity and it accounted for 32.25% of total study area;3) level Ⅲ risk zone accounted for 21.05%;4) the ration of level Ⅳ and level Ⅴ was 22.14% and 20.58% respectively,and the sum accounted for 42.72% in entire study area,so fire preventing task was hard in the study area;5) fuel types played an important role in fire risk zone division.Among them,Oak and tea tree played positive action for fire prevention.The distribution area of pine,bamboo and wild grass was very crucial for fire prevention and should be managed and monitored closely. |
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| Keywords: | Huaguo Mountains of Lianyungang high spatial resolution aerial image forest fire risk zone topography factors |
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