大青山地区环境恶劣、植被破坏严重，利用菌根生物技术实现植被恢复是一个重要方向。
Nevertheless , to obtain the native mycorrhizal fungus species becomes the key to the recovering of plants and the improvement of environment with that technology.
大青山地区所建立的孔兹岩地层层序及其在太古宙地层系统中的位置，无疑对相邻地区高级变质区的岩石地层研究有重要借鉴意义。
The investigation of the khondalite sequence and its position in the stratum system of Archean in Daqingshan region is very useful to study the high-grade region of adjacent areas.
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