抚育间伐对杉木人工林生长的影响

The Influence of Intermediate Cutting Effects on Chinese fir Plantation Growth

抚育间伐在森林经营管理中起着十分重要的作用。合理的抚育间伐对改善森林林冠层的营养空间以及地下水肥的供应条件、保证林木个体和群体生长、提高森林生产力具有重要的理论和实践意义。通过对顺昌县国有林场间伐与未间伐的杉木人工林的测定,分析了间伐对杉木人工林生长状况的影响。结果表明:间伐促进了杉木人工林的胸径和树高的生长。

Intermediate cutting plays a very important role in forest management.Reasonable intermediate cutting has important significance in theory and practice to improve forest canopy layer nutrition space and the under ground water supply conditions,ensure the growth of individual and group trees and increase the forest productivi ty.The study showed that there was a difference in the growth status of Shun Chang state-owned forest’s Chi nese fir plantation between thinned and un-thinned stands,and analysed the thinning effects on Chinese fir plan tation growth.The results show that the thinning of the Chinese fir plantation promotes the growth of trees’diame ter at breast height,height.