The Korean Journal of Ecology

The Ecological Society of Korea (한국생태학회)
권호 표지

Development of Global Natural Vegetation Mapping System for Estimating Potential Forest Area

全球의 潛在的 森林面積을 推定하기 위한 植生圖 製作시스템 開發

  • Cha, Gyung Soo (Department of Forestry, Chonnam National University)
  • Published : 1996.10.01
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Abstract

Global natural vegetation mapping (GNVM) system was developed for estimating potential forest area of the globe. With input of monthly mean temperature and monthly precipitation observed at weather stations, the system spherically interpolates them into 1°×1°grid points on a blobe, converts them into vegetation types, and produces a potential vegetation map and a potenital vegetation area. The spherical interpolation was based on negative exponential function fed from the constant radius stations with oval weighing method which is latitudinally elongated weighing in temperature and longitudinally elongated weighing in precipitation. The temperature values were corrected for altitude by applying a linear lapse-rate (0.65℃ / 100m) with reference to a built-in digital terrain map of the globe. The vegetation classification was based upon Koppen’s sKDICe. The potential forest area is estimated for 6.96 Gha (46.24％) of the global land area (15.05 Gha).

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