위성영상과 지리정보를 이용한 우리나라의 산지습지 가능지 추출

Abstract

The mountainous wetlands have a high value in the ecological and geomorphological perspective in Korea. It is meaningful to make efforts to explore the distribution and feature of the mountainous wetlands even though the survey on the mountainous wetlands is apparently expensive and time-consuming. In order to survey the mountainous wetlands effectively, the potential wetlands should be extracted before the field survey. So the area to be surveyed could be reduced. This study aims to select potential mountainous wetlands using GIS spatial analysis. For this purpose, we first define the geographic criteria to use for the selection of the potential mountainous wetlands.. Next, the process to extract the potential mountainous wetlands is composed of following two steps. The first step is to extract candidates of potential wetlands with each map in 1:25,000 scale. The second step is to extract the final potential wetlands with combined data for whole Korean area. In the map tiled data processing, candidates of potential wetlands are extracted by the criteria of elevation, slope, land cover, NDVI and area. In the combined data processing, the final potential wetlands are selected by the criteria of vegetation and hydrology.