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小兴安岭——长白山林区系指我国东北地区松嫩平原和松辽平原以北、以东的山区,在地理上位于北纬41°—39°35′,东经127°—134°之间,南端以安(东)沈(阳)线为界,北部延伸至孙吴以南的小兴安岭南部山地,全林区成一新月形,境内山峦重叠,雨量充沛,是我国最大的林区之一,向称“树海”。解放以来成为东北森林工业的中心、全国木材供应的基地。过去因历遭反动统治者及帝国主义的残酷掠夺,原生林受到很大破坏。衍生结果,形成了多种多样的天然次生林(照片1),分布极普
Xiaoxing’anling - Changbai Mountain Forest refers to the mountainous area to the north of Songliao Plain and to the east of Songliao Plain in Northeast China. It is geographically located between 41 ° -39 ° 35 ’north latitude and 127 ° -134 ° longitude with An (East) Shen (Yang) line for the community, the northern extension to the south of Sun Wu Xiaoxinganling mountainous areas, the whole forest into a crescent-shaped, overlapping mountains, abundant rainfall, is China’s largest forest, sea". Since the liberation of the Northeast Forest Industry Center, the country’s timber supply base. The original forest was greatly damaged in the past by the brutal looting of the reactionary rulers and imperialists. Derived results, the formation of a wide range of natural secondary forest (photo 1), extremely distributed