摘要
营造松、杉为主的人工用材林，引起水土流失，林地生产力降低，防护功能差，易发生病虫害，且投资大。采用以近自然林为主的用材林经营方式，利用自然再生能力培育用材林，砍伐由皆伐转为择伐，保持林地覆盖的连续性，培育复层异龄林，其优点是，减少培育森林的开支，有利于森林生态系统的连续性和稳定性，实现永续利用的目的。
Artificial timber forest dominated by pine and fir can cause loss of water and soil, decrease of forestland productivity and protection function, and easy occurrence of pests and diseases. The managemental pattern of timber forest dominated by sub-nataral forest includes the measures as follows:①breeding timber forest by natural regenation ability; ②Changing clearing cutting into selective cutting;③ breeding uneven-aged forest. This pattern could decrease expenditure of forest breeding, remain the stability of forest ecosystem and realize aim of forestry sustanible development.
出处
《浙江林业科技》
北大核心
2000年第5期86-88,共3页
Journal of Zhejiang Forestry Science and Technology
关键词
用材林
林业建设
自然林
timber forest, direction, sub-natural forest
