黑龙江省是我国最大的林区,森林面积约占全国森林总面积的四分之一。在黑龙江省的森林资源中,天然次生林面积占50％以上。分布如此广大的次生林,势必在维护生态环境,发挥次生林多种生态效益,以及在木材生产,林付产品,多种经营,保障垒省工农业发展等方面发挥巨大的积极作用。 Heilongjiang Province is the largest forest region in China with a forest area accounting for about one quarter of the total forest area in the country. In Heilongjiang Province, forest resources, the natural secondary forest area accounts for more than 50%. The distribution of such a large number of secondary forests is bound to play a huge positive role in maintaining the ecological environment, giving play to the multiple ecological benefits of secondary forests, and in wood production, forest products, diversification and protection of industrial and agricultural development in the base areas.