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通过对祁连山东端１７块具有代表性的封育地与封育前及对照区的天然更新、幼树高生长、灌木高度、盖度进行对比分析，得出了封山育林效果显著的结论，并运用森林群落演替理论对试验结果进行了论证，从而说明封山育林是发展祁连山水源涵养林的一项重要而有效的措施。
Through the comparative analysis of 17 representative repainting sites in the eastern Qilian Mountains and the natural regeneration of the pre-incubation area and the control area, the height growth and shrub height of the saplings, the conclusion was obtained that the effect of closing hillsides to afforestation was significant, The succession theory of forest community demonstrated the test results, indicating that closing hillsides to facilitate afforestation is an important and effective measure to develop water conservation forests in Qilian Mountains.