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基于DEM的森林空间分布研究
引用本文:曾宏达,陈光水,杨玉盛.基于DEM的森林空间分布研究[J].国土与自然资源研究,2005(3):85-87.
作者姓名:曾宏达  陈光水  杨玉盛
作者单位:福建师范大学地理科学学院,福建,福州,350007
摘    要:在Arcgis及其3D和空间分析扩展模块的支持下,计算并探讨武夷山森林主要树种(杉木、松木、阔叶树)在地形因子(海拔、坡度、坡向)各梯度级的分布比重,采用三雏立体林相透视图表达森林的地形分布特征,并对其分布进行了探讨;结果表明,地带性植被阔叶树由于受人为干扰趋向分布于高海拔、坡度陡的山地;杉木林在长年人工经营的过程中,逐渐占据林分的首要地位且主要分布在500m以下的低山丘陵;松木适生性较广,明显倾向分布于(半)阳坡;人们对森林资源的经营和管理,也对森林的空间分布格局产生较大的影响。

关 键 词:DEM  地形  武夷山  空间分布
文章编号:1003-7853(2005)03-0085-02
收稿时间:2005-01-31
修稿时间:2005年1月31日

Analysis on forest spatial distribution based on DEM
ZENG Hong-da,CHEN Guang-shui,YANG Yu-Sheng.Analysis on forest spatial distribution based on DEM[J].Territory & Natural Resources Study,2005(3):85-87.
Authors:ZENG Hong-da  CHEN Guang-shui  YANG Yu-Sheng
Abstract:Considering there was a close relationship between spatial distribution of forest resource and terrain, we calculated and discussedthe proportion and causes of forst spatial distribution in Wuyi mountain city based on the Arcgis and its extensional module (3D & spatialanalysis), besides, we express the attributes of topographical distribution of the three dominating forest by use of three- dimensional forest formprofile map. The result of this research indicated that, because of human disturbance, broad- leaved trees, which is dominant species tend tomove back to higher elevation and more precipitous places; Cunninghamia lanceolata gradually took up the dominating status of forests duringlong- term of manual work, and mostly spread in the hill that below 500m; Pinus massoniana has a wider suitable establishment, and inclineto grow in (half- )sunny- slope. Thus it can be seen , dominant natural condition endows the forest region of Wuyi Moutain with diverse andabundance natural forest resources, in addition, terrain had become one of the significant factors that affected tree distribution, however, dueto the manual management and administration, spatial pattern of natural forest had been greatly influenced.
Keywords:DEM(digital elevation model )  topography  Wuyi mountain spatial distribution
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