1997年国家天然林资源保护工程实施后,长江、黄河流域工程区全面停止天然林商品性采伐,东北、内蒙古重点国有林区木材产量大幅度调减。该工程实施5年来,木材产量由1997年的6394.79万m3减少到2002年的4436.07万m3,调减幅度为30.62%,有效地保护了我国的天然林资源。1六大林业重点 After the national natural forest resources protection project was implemented in 1997, the commercial harvesting of natural forests was stopped completely in the engineering areas of the Yangtze River and Yellow River valleys, and the output of timber in key state-owned forest areas in the northeast and Inner Mongolia was drastically reduced. In the five years since the implementation of the project, the output of wood decreased from 63.4947 million m3 in 1997 to 44.3670 million m3 in 2002, a reduction of 30.62%, effectively protecting the natural forest resources in China. 1 six major forestry priorities