浙江临安森林景观格局变化的研究

A Study on Changes of Forest Landscape Patterns of Linan in Zhejiang Province

以森林资源调查的森林分布图和固定样地资料作为主要信息源，以ＡＲＣ／ＩＮＦＯ作为空间信息处理工具，采用平均斑块面积、形状指数、连接度、分数维、积聚系数、稳定度６个评价指标分析了１９８３～１９９４年浙江临安森林景观格局的变化。结果表明：松林和阔叶林等天然林景观比例减小，种类趋于简单化，破碎化趋势增强；竹林和经济林等人工林景观比例增大，种类趋于复杂化，规模经营趋势增强。研究表明，以森林资源调查得到的成果作为主要信息源进行森林景观格局分析，能为景观生态学的理论应用于林业生产实践开辟一条崭新的途径。

With the help of GIS tool of ARC/INFO, based on the information from forest distribution maps and permanent plots, six indices were put forward to analyze spatial patterns of forest landscapes in Linan from 1983 to 1994. They were mean matrix area, contour index, connectivity, fractal dimension, clustering index and stability. Analyzing results showed that the area proportion of natural forest landscapes, such as hard wood forest and pine forest, decreased gradually, components of forest landscape got simpler and forest landscapes became fragmented. While the area proportion of artificial forest landscapes, such as bamboo groves and economic forest, increased steadily, components of forest landscape became complicated and forest management tended to be highly regulated on a larger scale. A conclusion could be drawn that by using data from forest resources inventory as main information source to analyze spatial patterns of forest landscape, a practical way could be found for the theory of landscape e cology to be applied into forestry production.