大兴安岭地区森林资源变化及其对社会经济的影响

以黑龙江省大兴安岭为研究区，探讨森林资源变化对人类社会经济活动的影响，结果表明：1990～2000年，该区林木蓄积量和可采森林资源持续减少，森林质量明显下降，成熟林面积减少，森工企业危困，主要由于长期不合理的采伐经营所致。而这种变化导致1996年后林区人口迁出，出现负增长。同时，森林资源变化改变了产业结构，森林采伐和运输是第二产业的主要组成，因此在生产总值中的比重下降，第一产业上升，第三产业波动上升。

Study on the Forest Resource Change and Its influence on the Economic and Social Activities in Daxinganling Mountains

Taking Daxinganling Mountains of Heilongjiang Province as the study area, the influences of forest resources changes on social and economic environment were discussed. TheResults showed the forest resources were dropping in quality and quantity due especially to unreasonable long-term-the harvest volume outweighed growth volume. So total forest volume decreased from 1999 to 2000. Furthermore, the mature and old-growth stand area had been declining. Meanwhile, forest resource changed socioeconomic environment. On one hand, deteriorated forest resource decreased population. The population began to decrease in 19%. On the other hand, changed forest resources altered industry structure in short term. Forest harvest and transportation played central role in the second industry, so the proportion of the second industry slowed down. However, the proportion of the first industry kept increasing. The third industry maintained fluctuated increase trend and related negatively to the second industry.