可再生资源非线性收获的策略研究

The Research on The Nonlinear Harvest Strategy of Renewable Resources

本文运用非线性理论建立了可再生资源二次非线性收获的动力模式。研究结果表明 :为了保证可再生资源的可持续利用、收获 ,必须把收获强度控制在一定的水平上 ,我们因此可以得到持续的最大产量。我们发现虽然对可再生资源的收获策略有线性和非线性之分 ,但是得到的可再生资源的最大持续收获量是相同的。因此 ,我们必须采用合理的可再生资源收获策略 ,避免可再生资源的过度利用和枯竭。我国可再生资源十分短缺 ,需正确处理好经济发展与可再生资源保护之间的关系 。

A nonlinear dynamic model is set up to study the sustainable development and utility of renewable resources in this paper. If a linear lopping strategy is adopted, there is a maximum value of the sustainable renewable resources harvest. Unexpectedly, if a nonlinear lopping strategy is adopted, the maximum amount of forest harvest is the same as the above result. Then a conclusion is drawn that the maximum amount of renewable resources harvest is invariable whether a linear or a nonlinear strategy is adopted. In order to impel people to use renewable resource reasonably and avoid drying up of renewable resource,a reasonable harvest strategy should be worked out according to the method of science.We are in defect of renewable resource, it is important for us to deal with the relationship between economics development and protection of renewable resources.Protecting our precious renewable resources is significant for the development of our modernization construction and environmental protection.