亦称永续作业。根据森林的生长规律和再生作用，组织合理经营，并根据生长量和蓄积量的关系，确定合理采伐量，以做到合理轮伐，逐步达到“青山常在”，“越采越多，越采越好”的目的。到了这种地步，就叫永续利用。
森林采伐限额管理制度是国家按照合理经营和永续利用的原则，规定林木采伐限额的一种最基本的管理制度。
Forest cutting management quota system is the country according to the principle of reasonable management and sustainable using, it is a basic management system prescribe the quota of the forest.
异龄林经营决策是一个涉及到森林的经济效益和永续利用等多个目标的决策问题。
In this paper, the problem of uneven-aged forest management decision making is considered as a problem of multi-objective decision making.
如何合理地经营利用好这部分资源，对该省森林永续经营利用起到重要作用，其主伐年龄的确定是关键问题。
How to manage optimally and make use of the resource will play an important role in sustained-yield forest management in Heilongjiang province and determining the age of harvest cutting is the key.
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