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在再生的生物自然资源中,森林的寿命最长、生长得最多种多样,因而使它成为复杂的经营开发和调整的对象。森林群落最重要的特点(年龄结构和树种组成),由于它的规模之大,不能直接进行调整和规划。对它仅能通过实行林学措施(主伐、扶育采伐、造林、林分改造)给予影响,系统的评定和控制这种影响能够获得或多或少的成效。查明和评定由于自然过程和经营措施所引起森林的变化是森林经理组织规划和森林经营的起点和基础。
Among regenerated biological natural resources, forests have the longest life expectancy and the most diverse species, making them the object of complex business development and adjustment. The most important features of the forest community (age structure and species composition) can not be adjusted and planned directly because of its size. It can only be affected by the implementation of forestry measures (cutting, nurturing and harvesting, reforestation and reforestation) and systematic or systematic assessment and control of such impacts can achieve more or less effective results. Identifying and assessing the changes in forests that result from natural processes and management practices is the starting point and basis for forest managers’ organizational planning and forest management.