机构地区:[1]Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, P. R. China [2]Graduate School of Chinese Academy of Sciences Beijing 100039, P. R. China [3]Departnzent of Forestry and Natural Resources, Purdue UniversiO West Lafayette IN 47907, USA [4]Department of Management Shenvang Institute of Aeronautical Engineering, Shenyang 110034, P.R China
出 处:《Journal of Forestry Research》2005年第3期169-174,共6页林业研究(英文版)
基 金:The sludy was supported by a grant of the National Natural Science Foundation of China (No. 70373044 and 30470302) and National Key TechnolooiesR&D Program (No. 2001BA510B07)
摘 要:A forest fire can be a real ecological disaster regardless of whether it is caused by natural forces or human activities, it is possible to map forest fire risk zones to minimize the frequency of fires, avert damage, etc. A method integrating remote sensing and GIS was developed and applied to forest fire risk zone mapping for Baihe forestry bureau in this paper. Satellite images were interpreted and classified to generate vegetation type layer and land use layers (roads, settlements and farmlands). Topographic layers (slope, aspect and altitude) were derived from DEM. The thematic and topographic information was analyzed by using ARC/INFO GIS software. Forest fire risk zones were delineated by assigning subjective weights to the classes of all the layers (vegetation type, slope, aspect, altitude and distance from r3ads, farmlands and settlements) according to their sensitivity to fire or their fire-inducing capability. Five categories of forest fire risk ranging from very high to very low were derived automatically. The mapping result of the study area was found to be in strong agreement with actual fire-affected sites.A forest fire can be a real ecological disaster regardless of whether it is caused by natural forces or human activities, it is possible to map forest fire risk zones to minimize the frequency of fires, avert damage, etc. A method integrating remote sensing and GIS was developed and applied to forest fire risk zone mapping for Baihe forestry bureau in this paper. Satellite images were interpreted and classified to generate vegetation type layer and land use layers (roads, settlements and farmlands). Topographic layers (slope, aspect and altitude) were derived from DEM. The thematic and topographic information was analyzed by using ARC/INFO GIS software. Forest fire risk zones were delineated by assigning subjective weights to the classes of all the layers (vegetation type, slope, aspect, altitude and distance from r3ads, farmlands and settlements) according to their sensitivity to fire or their fire-inducing capability. Five categories of forest fire risk ranging from very high to very low were derived automatically. The mapping result of the study area was found to be in strong agreement with actual fire-affected sites.
关 键 词:Forest fire risk GIS Remote sensing Baihe forestry bureau
分 类 号:S762.31[农业科学—森林保护学] P208[农业科学—林学]
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