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兰州南部山区森林是兰州市天然的生态屏障,该地区森林面积大小及森林生态功能的大小均对兰州市空气质量的改善有着直接影响。在对兰州南部山区森林生长与经营现状调查与研究的基础上,依据德国森林近自然化经营技术,并结合当地立地条件,提出了华北落叶松、油松和云杉人工纯林近自然化经营技术,加速人工纯林近自然化经营的进程,最终把低质、低效、低产的森林培育为林分生产力高、生态系统稳定与健康、功能多样的近自然森林。
The mountainous forest in the south of Lanzhou is the natural ecological barrier of Lanzhou. The size of the forest area and the ecological function of the forest in Lanzhou have a direct impact on the improvement of air quality in Lanzhou. Based on the investigation and research on the status quo of forest growth and management in the southern mountainous area of Lanzhou, based on the near natural management technology in Germany and the local site conditions, it was proposed that the artificial natural forests of Larix principis-rupprechtii, Pinus tabulaeformis and Picea koraiensis were close to nature management Technology to speed up the natural management of artificial pure forests. Finally, low-quality, low-efficiency and low-yield forests are cultivated as near-natural forests with high productivity, stable and healthy ecosystems, and diversified functions.