S-Space College of Agriculture and Life Sciences (농업생명과학대학) Dept. of Landscape Architecture and Rural System Engineering (생태조경·지역시스템공학부) Journal Papers (저널논문_생태조경·지역시스템공학부)
위성영상 시공간 융합과 CASA 모형을 활용한산지 개발사업의 식생 순일차생산량에 대한 영향 평가
- 김예화; 주경영; 성선용; 이동근
- Issue Date
- 한국환경복원기술학회지, Vol.20 No.4, pp. 29-42
- 위성영상 시공간 융합과 CASA 모형을 활용한산지 개발사업의 식생 순일차생산량에 대한 영향 평가; 농수해양; Carbon absorbtion function; Spatio-temporal fusion method; CASA-NPP model; Landsat image; MODIS image
- As the “Guidelines for GHG Environmental Assessment” was revised, it pointed out that the developers should evaluate GHG sequestration and storage of the developing site. However, the current guidelines only taking into account the quantitative reduction lost within the development site, and did not consider the qualitative decrease in the carbon sequestration capacity of forest edge produced by developments. In order to assess the quantitative and qualitative effects of vegetation carbon uptake, the CASA-NPP model and satellite image spatial-temporal fusion were used to estimate the annual net primary production in 2005 and 2015. The development projects between 2006 and 2014 were examined for evaluate quantitative changes in development site and qualitative changes in surroundings by development types. The RMSE value of the satellite image fusion results is less than 0.1 and approaches 0, and the correlation coefficient is more than 0.6, which shows relatively high prediction accuracy. The NPP estimation results range from 0 to 1335.53 g C/㎡ year before development and from 0 to 1333.77 g C/㎡ year after development. As a result of analyzing NPP reduction amount within the development area by type of forest development, the difference is not significant by type of development but it shows the lowest change in the sports facilities development. It was also found that the vegetation was most affected by the edge vegetation of industrial development. This suggests that the industrial development causes additional development in the surrounding area and indirectly influences the carbon sequestration function of edge vegetaion due to the increase of the edge and influx of disturbed species. The NPP calculation method and results presented in this study can be applied to quantitative and qualitative impact assessment of before and after development, and it can be applied to policies related to greenhouse gas in environmental impact assessment.
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