應用數值地形資料推導福山地區森林生育地因子

Applying a Digital Terrain Model to Derive Forest Habitat Factors-A Geographic Information System Approach

謝漢欽(Han-Ching Hesieh)

《台灣林業科學》 12卷1期 (1997/03) Pp. 1-14

https://doi.org/10.7075/TJFS.199703.0001

摘要

本研究旨在應用風格式地理資訊技術，將福山地區的數值地形資料應用於森林生育地因子的推導。所推導的森林生育地因子皆與地形和位置有關，推導的因子包括溫度指數、合成水分指數、全天空光空域及全年直射光空域。求算的過程因考慮到能與遙測影像及地理資訊的整合，其演算方法已經過合理改良，可對未來大面積的生態監測及生態模式的綜合分析，提供有利的資訊。

關鍵字

數值地形 ； 森林生育因子 ； 地理資訊系統 ； 全天空光空域 ； 直射光空域

並列摘要

The objective of this study was to apply the technique of raster geographic information system to derive forest habitat factors from digital elevation data of the Fushan area. The derived factors associated with the influences of terrain and spatial distribution included the temperature index, synthetic moisture gradient, whole light sky space, and direct light sky space. The purpose was to be able to integrate these factors into remote sensing and geographic information system data, so the algorithm of each model was modified so as to be able to be used by geographic information system. The results of the study are suitable for utilization large-scale ecological monitoring and detection, and can be used as major variables in the analyses of ecological quantitative models.

並列關鍵字

digital terrain model ； forest habitat factor ； geographic information system ； whole light sky space ； direct light sky space