森林可持续发展的模糊化模型

本文从不同树种、不同时间、空间的分布出发，应用模糊聚类分区模型先对样本进行分类，以便确定有关参数。然后运用动态规划方法讨论森林可持续发展问题，建立了森林自然长模型和在森林可持续发展条件下的优化开发模型，给出了相应的迭代公式，选用夏冈-夏蜡梅群落进行模拟计算，结果表明，经过一段时间的自然发展，森林群落可达到稳定态，夏蜡梅群落必将过度到青冈-夏蜡梅稳定群落，且总体稳定，与文献3]4]一致模糊。

Fuzzy Optimal Model of Sustainable Development of Forests

The article applies fuzzy gathering distribution model and distribute species from different trees, time and space decides on the related parameter. Then discusses the problem of sustainable development of forests by the method of motion design, develops the model of the natural development of forests and optimal developing model of the sustainable development of forests, give the relevant calculating method. It selects Cyclobalanopsis glauca-Calycanthus chinensis com. to calculate and the result shows that the forests can reach a stable stage after natural development of a time and Calycanthus chinensis must transfer to Cyclobalanopsis glauca- Calycanthus chinensis com., the population mean is stable and the same with periodicals 3] 4].