通过对大青山白石头沟流域多年来封山育林成效的调查,结果显示:本地区封山育林效果显著,使森林面积增加,有效地改善生态环境,提高了森林涵养水源、保持水土的综合效益。为大青山冲积平原地区经济和社会的进步提供了可靠的生态屏障。 Through the investigation of the effectiveness of closing hillsides to facilitate afforestation in Baishitougou valley in Daqingshan Mountain for a long time, the results show that the afforestation in this area is significant, the area of ​​forest is increased, the ecological environment is effectively improved, the water conservation of forests is improved, and the comprehensive benefit of soil and water is maintained. It provided a reliable ecological barrier for the economic and social progress of the Daqing alluvial plain.