GIS-BASED MAPPING FOR FOREST FIRE RISK ZONE IN SELENGE, MONGOLIA
- 주제(키워드) Forest fire , GIS , Selenge province , Mongolia
- 발행기관 고려대학교 대학원
- 지도교수 Woo-Kyun Lee
- 발행년도 2011
- 학위수여년월 2011. 8
- 학위구분 석사
- 학과 일반대학원 환경생태공학과
- 원문페이지 41 p
- 실제URI http://www.dcollection.net/handler/korea/000000027112
- 본문언어 영어
- 제출원본 000045669710
초록/요약
A forest fire can be a real ecological disaster, regardless of whether it is caused by natural forces or human activity. It is possible to map forest fire risk zones and thereby minimize the frequency of fire and avert damages. A Forest fire risk zone represents a locations where a fire is likely to occur and from where it can easily spread to other areas. Fire management including its prevention would be successful if a fire risk zone map is available. A geographic information system (GIS) can be used effectively to combine different forest-fire-causing factors to demarcate the forest fire risk zone map. The Selenge Province which is locating in northern part of Mongolia was selected for this study as it continually faces a forest fire problem. All maps have been produced using GIS tools. Elevation, slope, aspect and other coverage (road, settlements, and herder’s shelter) were derived from topographic maps. Four categories of forest fire risk ranging from very high to low were derived automatically. Forest fire risk zones were delineated by assigning subjective weights to the classes of all the layers according to their sensitivity to fire or their fire-inducing capability with the help of knowledge of forest expert. Almost 69.04% of the study area was predicted to be very high and high-risk zones. The GIS-based forest fire risk model of the study area was found to be in strong agreement with actual fire-affected sites in 2005-2009. The forest fire risk zone of this study can be used for effective prevention and management strategy of forest fire in Mongolia. Keywords: Forest fire; GIS; Selenge province, Mongolia
more목차
1. INTRODUCTION 1
2. STUDY AREA 5
3. MATERIALS 8
3.1 Data 8
3.1.1 Vegetation type 8
3.1.2 Elevation 9
3.1.3 Slope 9
3.1.4 Aspect 10
3.1.5 Distance from roads 10
3.1.6 Proximity to settlements 10
3.1.7 Distance from herder’s winter spring shelter 11
3.2 Data preparation 11
4. METHODS 13
4.1 Analysis process 13
4.2 Weight of influencing factors 15
4.3 Mapping of forest fire risk zone 15
5. RESULTS AND DISCUSSION 20
5.1 Forest fire risk by influecing factors 20
5.2 Mapping forest fire risk zone 26
5.3 Verification of the predicted forest fire risk map 29
6. CONCLUSION 31
7. REFERENCES 33
