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建国三十多年来,在大量开发利用现有林的同时,人工造林也取得了一定的成绩,桉树、杨树、泡桐、杉木、落叶松、红松等树种形成了一代人工新林;但我国森林覆被率和森林蓄积的增多,仅仅靠扩大人工林面积是不够的,更重要的是应加强现有林的经营,至少保存现有林面积不再减少,否则森林覆被率还要下降。因为人工林面积的增加是以现有林为基础的,只有当天然林面积越大,分布的越均匀,人工林的营造才有保证。为了把现有林和人工林经营管理好,使森林覆被率迅速增加,本文仅就天然林和人工林的关系、现有林经营中存在的问题等,谈谈我们的想法与建议。供讨论。
For the past 30 years since the founding of the People’s Republic of China, a great deal of achievements have been made in afforestation with abundant development and utilization of existing forests. Eucalyptus, poplar, paulownia, Chinese fir, larch and Korean pine plantations have formed a new generation of artificial new forests. However, The increase of forest cover rate and forest volume in our country is not enough just to expand the plantation area. More importantly, we should strengthen the operation of the existing forest and at least keep the existing forest area no longer decreasing, otherwise, the forest cover rate will have to be decline. Because the increase of plantation area is based on the existing forest, only when the area of natural forest is larger and the distribution is more uniform, the creation of plantation is guaranteed. In order to manage and improve the existing forest and plantation, the paper only talks about the relationship between the natural forest and plantation, the existing problems in the existing forest management and so on, and then talk about our ideas and suggestions. For discussion.