论文部分内容阅读
在红松人工林内,保留天然更新的多种阔叶树,是培育以红松为主的的阔叶红松林的极为重要的途径,也是培育高质量红松人工林的有效措施。许多研究证明,阔叶树与红松伴生不仅为红松生长塑造一个良好的环境,而且抑制早期结实,减少病虫灾害,减少早期分叉,从而有利于红松形成高大干材,提高经济效益。红松在成林以后,尤其是在10一15龄之后,需光量和对空间的要求日益增多,过密的阔叶树又成为抑制红松幼树生长的关健因子,
Keeping the natural regeneration of broad-leaved trees in Pinus koraiensis plantations is an extremely important way to cultivate Korean pine broad-leaved Korean pine forests. It is also an effective measure to cultivate high-quality Pinus koraiensis plantations. Many studies have shown that the broadleaf tree and Korean pine associated not only for the growth of the Korean pine mold to create a good environment, but also inhibit early fruiting, reduce pest disasters and reduce the early bifurcation, which is conducive to the formation of tall pine dry material, improve economic efficiency. Korean pine in the forest, especially after the age of 10 to 15, the amount of light required and the increasing space requirements, over-dense broad-leaved trees and pine trees have become a key factor inhibiting the growth of young trees,