小兴安岭天然次生林经营模拟与评价

应用SPACE模型对黑龙江省带岭林业局东方红林场某研究样地进行了不同经营方案的模拟，并建立了反映森林多效益功能的层次分析评价结构模型。通过实例研究表明，SPACE模型和层次分析法应用于森林经营模拟与评价是可行的，对森林经营决策具有一定参考价值。应用层次分析法评价的结果表明，对研究样地所设计的8种经营方案中，最佳经营方案为：当年伐除胸径34cm以上的全部阔叶树，25年时伐除胸径38cm以上全部林木，50年时伐除胸径40cm以上全部林木，75年时伐除胸径46cm以上全部林木。这一方案既满足了一定的木材需求，又使经营后的森林资源林相完整，演替为当地的顶极群落，且未来演替方向好。

Simulation and Evaluation for Secondary Forest Management in Xiaoxing''''anling Forest Region

Eight management projects were simulated by SPACE model in terms of the data from Dongfanghong Forest Farm of Dailing Forestry Bureau, Heilongjiang Province. An evaluation model based on the analytic hierarchy process reflecting the multiple benefits of forest resources perfectly was also established. Results showed that it is feasible using the advanced SPACE model and the analytic hierarchy process in forest management simulation and evaluation, which provide a special reference for forest management decision - making. The analytical result by the analytic hierarchy process showed that the best management project is all the broad - leaved trees with breast diameters above 34 cm were cut down in the first year, and then all the other trees were cut down according to the following scheme, trees with DBH above 38 cm in the 25th year, those above 40 cm in the 50 th year and above 46 cm in the 75 th year. This project not only meets the demand for timber, but also protects the forest form of forest resources from destroying after management, and the community will approach to the local climax community with a good succession direction in the future.