三峡库区森林资源空间结构分析

以三峡库区森林资源作为研究对象，从水平结构和垂直结构两方面进行空间结构分析。水平结构方面借鉴景观生态学原理，选取面积指标、边缘指标、形状指标、密度指标进行分析；垂直结构方面则选取海拔、坡度、坡向3个指标进行分析。并结合分析结果，提出库区森林经营建议。研究结果表明，库区森林资源在水平层次上，以针叶林、阔叶林、灌木林为主体，混交林、竹林为次的景观结构；垂直层次上，以低海拔—中等坡度—阴坡为主体，高海拔—陡坡—阳坡景观结构为重点经营对象。研究为三峡库区森林资源合理化经营及决策提供理论依据。

Spatial Analysis on Forest Resources in the Three Gorges Reservoir Area

Spatial structure of whole forest resources in the Three Gorges Reservoir area from both horizontal and vertical aspects. Firstly, several important indicators were selected by the theory of landscape ecology in horizontal structure, including area, margin, shape and density, and elevation indicators, slope indicators and aspect indicators were selected in vertical structure. Furthermore, combined with the analysis results, some recommendations were proposed for forest management. The results showed that at the horizontal level, coniferous, broad-leaved and shrub forests were the major components for the plantscape, followed by the mixed forests and bamboo forests. At the vertical level, low altitude, middle slope and shady aspect were the main contribution aspects for plantscape, and attentions should be paid on the management of high altitude, steep slope and sunny aspect. The study would provide important practical significance for forest rationalization management and decision making in the Three Gorges Reservoir area.