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本文对松青、浩良河落叶松人工林进行间伐抚育买验,通过不同间伐抚育强度后,各实验区保留木数量、质量、小区气候,林木物候发生有规律性的变化。随间伐强度的加大,林内积温指数在增加,生长候提前,休眠候拖后,生长期延长。从保留木数量、质量变异规律看,20％间伐强度为最佳气候和林木物候型。这对指导营林生产,防止自然灾害,病虫危害、火险预报提供理论基础。
In this paper, pine greening and Haolianghe larch plantation were bought and tested empirically. After different tending intensity, the quantity, quality, community climate and forest phenology of the experimental area changed regularly. With the increase of thinning intensity, the forest temperature index is increasing, the growth stage ahead of schedule, postponement of dormancy, the growth period extended. According to the rules of the quantity and quality variation of reserved wood, 20% thinning intensity is the best climate and forest phenology. This provides the theoretical basis for directing forest production, preventing natural disasters, pest and disease hazards, and predicting fire hazards.