Relation Between Barelands and Topographical Factors

독나지(秃裸地)와 지형인자(地形因子)와의 관계(關係)

The article was carried out to study the relationships between the causes of barelands and topographic factors such as altitudes, slopes and bearings. Using the forest utility demarcation maps of 1 : 50,000 in scale and the aerial photographs drawn and taken by the Forest Resources Institute, Seoul, the areas of each bareland and the topographic factors were calculated from the maps and photographs and the critical causes of barelands were analyzed based on the various topographic factors. The results obtained were as follows: 1. There were some positive relation between area of barelands and slopes, and between area of barelands and altitudes. 2. However. there were no significant difference between number of barelands and altitudes, between number of barelands and slopes, between number of barelands and bearings, and between area of barelands and bearings.

독나지면적(秃裸地面積) 및 개수(個數)와 지형인자(地形因子)(해발고(海拔高), 경사(傾斜), 방위(方位))의 관계(關係)를 구명(究明)하기 위하여, 임업시험장(林業試驗場) 산림림자원조사소(山林林資源調査所)에서 항공사진(航空寫眞)을 기본(基本)으로 하여 제작한 오만분지일(五萬分之一) 산지이용구분도(山地利用區分圖)를 사용(使用)하여 독나지(秃裸地)의 지형해석(地形解析)을 하여 해발고(海拔高), 경사(傾斜), 방위별(方位別)로 독나지면적(秃裸地面積) 및 개수(個數)를 구(求)하여 추측통계법(推測統計法)의 분산분석(分散分析)으로 그 유의성(有意性)을 검정(檢定)한 결과(結果), 1. 독나지면적(秃裸地面積)과 해발고(海拔高) 및 경사간(傾斜間)에는 약간(若干) 관계(關係)가 보이나, 독나지개수(秃裸地個數)와 및 해발고(海拔高) 및 경사간(傾斜間)에는 전연유의성(全然有意性)이 인정되지 아니하였다. 2. 독나지면적(秃裸地面積) 및 개수(個數)와 방위간(方位間) 전연유의성(全然有意性)이 인정되지 아니하였다.