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中文摘要：
应用空间直观的森林景观干扰演替模型（LANDIS）模拟了2000-2200年间小兴安岭友好林区4种森林管理预案（无采伐、皆伐、择伐Ⅰ和择伐Ⅱ）下的森林景观变化，并结合景观尺度的生境适宜度指数（HSI）模型评估了不同管理预案对研究区松鼠生境的影响．结果表明：研究期间，无采伐下松鼠适宜生境面积的增幅最快，而勉强适宜生境的降幅最快；皆伐下，松鼠适宜生境面积的增幅最慢，而勉强适宜生境的后期降幅最小；择伐Ⅰ下松鼠适宜生境面积的增幅高于择伐Ⅱ，而其勉强适宜生境面积的降幅低于择伐Ⅱ．整体而言，松鼠生境最优化的管理方案依次为无采伐、择伐Ⅰ、择伐Ⅱ和皆伐．
英文摘要：
A spatially explicit landscape model LANDIS was applied to simulate the forest landscape changes under four management alternatives （no cutting, clear cutting, selective cutting Ⅰ and Ⅱ） in Youhao Forestry Bureau located in Small Xing＇ an Mountain from 2000 to 2200. The outcomes from LANDIS were combined with a landscape-level habitat suitability index （HSI） model in a GIS environment to assess Sciurus vulgaris habitat quality. The results showed that the increase of suitable habitat area and the decrease of marginally suitable area were the fastest under no cutting scenario, and the slowest under clear cutting scenario. Suitable habitat area increased faster while marginally suitable area decreased more slowly under selective cutting Ⅰ scenario than under selective cutting Ⅱ. Overall, the optimal management alternative of S. vulgaris habitat was in the sequence of no cutting, selective cutting Ⅰ, selective cutting Ⅱ , and clear cutting.
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