人工更新造林成效分析研究

黑龙江省国有林区有计划地开展人工更新造林是从1951年开始的,截止2005年底人工更新造林面积484.3万hm2,其中:保存面积287.4万hm2,面积保存率为59.4%,为总结人工林发展的历史经验,指导人工林经营事业的健康发展,对人工更新造林失败原因、保存面积的树种结构与蓄积进行了分析。

Research on Effect of Artificial Regeneration Reforestation

The Heilongjiang province state-owned forestry area began to develop artificial regeneration reforestation in a planned way from1951.Up to the end of 2005,the area reached 4.843 million hm2,among which 2.874 million hm2 were successfully prevented and the preservation rate was taken by 59.4%.Based on historical experience of developing artificial forest,the paper analyzed the failure cause of artificial regeneration reforestation and the volumes and structure of existing trees,to guide health development of management of artificial forest.