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Land Use Evaluation and Suitablility Analysis for Paddy Cropping of Nam Khane Watershed, Laos, Using Remotely Sensed Data and Geographic Information Systems

원격탐사자료와 GIS를 이용한 라오스 남칸유역분지의 토지이용평가 및 미작적지분석


Abstract

Using remotely sensed data(MOS-1) and other spatial data such as aerial photos and topographic maps, 10 kind of thematic layers were prepared with Arc/Info system for watershed management of Nam Khane River, northern part of Laos. The characteristics of landuse distribution of some criteria which like village, sub-basin, elevation and slope were clarified by overlaying each layer. Therefore, statistic data including shifting cultivation area were produced from database layer. Through the manipulation of some data of each layer, suitable area for permanent paddy cropping converted from the fallow and shifting cultivation area was extracted.

원격탐사자료(MOS-1)를 이용하여 라오스 북부 남칸유역분지의 토지이용형태를 분류하 고, 항공사진과 지형도 및 현지조사에 의한 자료를 기초로 하여 Arc/Info 시스템에서 10종류의 주 제도를작성하였다. 이가운데 취락, 소유역분지, 지형고도, 사면경사를 기준으로하여 토지이용분포 의 특성을 각 주제도면을 중첩 분석하여 규명하였다. 더욱이 화전지역의 분포특성을 파악하고, 휴 경지와 화전지역에 대하여 미작이 가능한 영구농지로 전환할 수 있는 적지를 추출하여 유역관리 를 위한 기초자료를 산출하였다.

Keywords

References

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