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通过对 3个时段浙江省森林资源动态与发展趋势的浅析 ,表明全省森林资源动态变化总的趋势是 :有林地、人工林面积增长较快 ;无林地、疏林地面积减少较大 ;森林覆盖率则由 1 979年的 36 4%提高到 1 994年的 54 6 % ,增长了 1 8 2个百分点 ,平均每年增加 1 2个百分点 ;活立木总蓄积量在稳定中稍有增加 ;竹林面积稳定 ,毛竹株数增长 ;经济林面积增长亦较迅速。但是 ,单位面积蓄积量下降 ,成熟林减少 ,林分质量呈现劣化趋势。本文为制订全省林业生产方针政策、客观及时地分析检查林业方针的贯彻执行情况和经营措施的效果、科学地经营林业提供了基础资料。
Through the analysis of the dynamic and development trend of forest resources in Zhejiang Province in three periods, it shows that the general trend of dynamic changes of forest resources in the whole province is as follows: the area of forestland and planted forest increased rapidly; the area of non-forestland and sparse forest decreased greatly; The coverage rate increased from 36 4% in 1979 to 54 6% in 1994, an increase of 182%, with an average annual increase of 12%. The total stock volume of living timber increased slightly in the stabilization period. Area is stable, the number of bamboo growth; economic forest area also more rapid growth. However, the stock volume per unit area decreased, the mature forest decreased, and the stand quality showed a deteriorating trend. This article provides the basic information for the scientific management of forestry in order to formulate the province’s forestry production policies, objectively and timely analysis and inspection of the implementation of forestry policy and the effect of management measures.