摘要
对凉水自然保护区1987年的林隙透光采伐试验地进行了调查分析。结果表明通过不同的调控措施，可以利用红松幼树周围辅助木创造的林隙效应，有效地调节红松林木高、径以及林木形态在时空上的分配过程。其中红松的生长随林隙空间大小在顶梢侧芽的数量，连年高、径的生长，径和侧枝的垂直生长模式以及叶、枝、干的空间分配等方面对林隙透光的反应有所不同。总体趋势是林隙越大，相应的生长量越大；在林隙透光后，各项调查指标有一定程度的增加，但具有明显的阶段性。反映了林隙透光后，林隙内的红松和林隙边缘各树种的侧生长填充，使林隙的生态效应随时间推移而减弱。要保持持续的生长和良好的红松个体形态则还需要不断地释放空间。
Investigation was carried out on the experimental plots of gap control in 1987 in Liangshui Nature Reserve. Results show that the Korean pine needlings can exploit the gap effect made by other trees around them and regulate their heights, diameters and temporal-spatial distributing patterns of their shape effectively. Among them, the growth of Korean pine varies with the gap size on the number of side buds, the vertical growth model of diameter and side branch, and spatial distribution of foliage, branch and stem. The general trend is that the bigger the gap, the more the growth after gap controlling. All indexes under investigation increase to some extent, but show obvious stages. All these reflects that the gap effect weakens as the time goes on because of gap filling by side branches growing in the gap and at the edge of gap. Therefore, it is necessary to release space size step by step to keep continuous growth and fine architecture of individuals.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2000年第3期26-31,共6页
Journal of Northeast Forestry University
基金
国家"九五"攻关课题!"红松福建柏珍贵建筑材良种选育及培育技术研究"子专题
关键词
红松
中幼龄林
林隙调控
侧生长
人工林
Korean pine
Young and middle-aged forest
Expanded gap
Gap control
Side branch growth
