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논문 기본 정보

자료유형
학술대회자료
저자정보
Munkhnasan Lamchin (Korea University) Jong-Yeol Lee (Korea University) Woo-Kyun Lee (Korea University) Eun Jung Lee (Korea University)
저널정보
대한공간정보학회 대한공간정보학회 학술대회 2014 한국지형공간정보학회 춘계학술대회
발행연도
2014.5
수록면
109 - 112 (4page)

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초록· 키워드

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Desertification is a serious threat to the ecological environment and social economy in our world and there is a pressing need to develop a reasonable and reproducible method to assess it at different scales. In this paper, the HognoKhaan protected area in Mongolia was selected as the research region and a quantitative method for desertification assessment was developed by using Landsat TM/ETM+ data on a regional scale. In this method, NDVI, GSI (Topsoil grain size index) and land surface albedo were selected as assessment indicators of desertification to represent land surface conditions from vegetation biomass, landscape pattern and micrometeorology. Based on considering the effects of vegetation type and time of images acquired on assessment indictors, assessing rule sets were built and a decision tree approach was used to assess desertification of HognoKhaan protected area in 1990, 2002 and 2011.We compared following six different environmental parameters, NDVI (Normalized Difference Vegetation Index), GSI (Topsoil Grain Size Index), Albedo, LST (Land surface temperature), PDI (Perpendicular drought index), CTI (Compound Topographic Index), to examine correlation analyze between each other those parameters by grade of desertification.

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Abstract
1. Study area
2. Materials and method
3. Result and discussion
4. Conclusion

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UCI(KEPA) : I410-ECN-0101-2015-530-001411563