在充分利用土壤和空间(营养面积)的前提下,保持林分在整个生长发育过程始终形成一个合理的群体结构,以保证其在不同的阶段各个体有充分生长发育的条件,是达到林分速生丰产、优质的目的。间伐就是经过人为的措施来满足林分的群体结构,促进林分速生丰产、优质的一种手段。为了给大面积抚育间代生产提供科 Under the premise of making full use of soil and space (nutrient area), keeping the stand in the whole process of growth and development has always formed a reasonable group structure, in order to ensure that each individual has sufficient growth and development conditions at different stages, is to reach the stand Fast-growing, high-quality purpose. Thinning is a means by which man-made measures are taken to satisfy the group structure of the stands and to promote fast-growing and high-quality stands. In order to provide large-scale tending generation production section