培育优质、速生、丰产的林分是当代营林工作者的共同愿望。当林木郁闭后,进入成林阶段,林木之间产生对土壤养分和光照的强烈竞争,林分内部树木之间出现了分化现象,出现了被压木,因此随着林龄的增长和树木生长的变化,必须适时进行抚育间伐,以调整林分密度,创造良好的林分结构,使保留木得到充分的光照和必须的营养面积,以促进林木速生丰产。 Cultivating high-quality, fast-growing and high-yielding stands is the common desire of contemporary forest workers. When the forest is closed, into the forest stage, there is strong competition between soil and nutrients and the light between trees, the phenomenon of differentiation between the trees appeared in the forest, appeared pressed wood, so as the age of the forest and trees Growth changes, we must timely tending thinning, in order to adjust the stand density, create a good stand structure, so that reserved wood to obtain adequate lighting and the necessary nutrients to promote fast-growing forest yield.