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对辽宁东部山区人工营造的白桦-红松和色赤杨-红松混交林,应用解析木法分析红松与阔叶树的直径、树高生长动态、径级分布及种间关系动态变化的研究。结果表明:人工阔叶红松混交林在1～8年生时,红松与阔叶树占据各自营养空间,种间关系较为协调,同时充分发挥了阔叶伴生树种的辅佐功能,明显地改善了红松生长所需的光照条件,促进混交林中红松的直径、树高生长,种间关系处于相对稳定状态;8～12年生间,混交林的种间关系处于竞争初期,此时混交林中红松的胸径、树高生长量开始下降,在12年生后,种间关系矛盾日趋加剧并进入竞争盛期,在竞争中,阔叶树生长迅速,红松生长受到明显压抑,行状混交林在无人为调控措施下,红松将逐渐枯死而形成阔叶纯林。据此认为在人工阔叶红松林培育过程中,必须适时采取疏伐等措施调整阔叶树的比例,缓解种间关系,以充分发挥混交林的多种效益。
Study on Dynamic Changes of Diameter, Height Growth, Trail Size Distribution and Interspecific Relationship between Pinus koraiensis and Pinus koraiensis - Mixed Korean Pine in East Liaoning Mountainous Area. The results showed that when the Pinus koraiensis-mixed forest was aged from 1 to 8 years, the Korean pine and broad-leaved trees occupied the space of their own nutrition, and the relationships among the species were more harmonious. At the same time, the conidial function of the broad-leafed coniferous tree was fully utilized and the Korean pine growth Need to light conditions, to promote the mixed forest Pinus koraiensis diameter, height growth, the relationship between species in a relatively stable state; 8 to 12 years old, mixed species of interspecific relationship at the early stage of competition, this time mixed forest Pinus koraiensis DBH, tree height The growth began to decline. After 12 years of birth, the contradiction between species intensified and entered the peak of competition. In the competition, the broad-leaved tree grew rapidly and the growth of Korean pine was obviously suppressed. Under unmanned regulation, Gradually dead and the formation of broad-leaved pure forest. Therefore, it is suggested that in the process of artificial broad-leaved Korean pine forest cultivation, the proportion of broad-leaved trees must be adjusted in time to reduce the proportion of broad-leaved trees and mitigate the interspecific relationship so as to give full play to the various benefits of mixed forest.