透光抚育对“栽针保阔”红松林中红松生长过程的影响

目的]通过研究长白山地区不同透光抚育强度下"栽针保阔"阔叶红松林中红松的生长情况,揭示透光抚育对"栽针保阔"红松林中红松生长过程的影响规律,旨在为阔叶红松林的恢复、经营提供有力的科学依据。方法]研究5种透光抚育(未采伐对照、低度择伐、中度择伐、强度择伐及上层皆伐)对红松生长的影响。结果]红松在群落中的地位随着透光抚育强度的增大逐步得到提升,同时透光抚育能够显著提高"栽针保阔"红松林内红松优势木(63.4%~146.5%、64.6%~158.6%)、平均木(57.9%~271.1%、42.5%~261.7%)和被压木(56.5%~182.6%、95.5%~245.5%)的树高和胸径,且呈现出随透光抚育强度的增大而递增的规律性。结论]透光抚育能显著提高红松树高和胸径生长。

The Influence of Light Transmittance Felling on Pinus koraiensis Growth Process in the ＂Preserving Deciduous While Planting Coniferous＂ Korean pine

Objective] Based on the different light transmittance felling intensity under the Changbai Mountain area ＂preserving deciduous while planting coniferous＂ growth of Pinus koraiensis in broad-leaved Korean pine forest, revealing of crownthinning on ＂effect of planted Pinus koraiensis growth of conifers and protect broad-leaved tree＂ Korean pine forest of broad-leaved Korean pine forest, aims to provide scientific basis for restore operation. Method] The influence of five Light transmittance felling treatments on Pinus koraiensis was studied. Result] The position of Korean pine in the community with increasing light thinning intensity gradually increased, at the same time, light transmittance felling can significantly improve the ＂ preserving deciduous while planting coniferous pine forest＂ dominant （ 63.4% - 146.5% , 64.6% - 158.6%）, the average wood （57.9% -271.1%, 42.5% -261.7%） and pressed wood （56.5% -182.6%, 95.5% -245.5%） of tree Height and DBH, and increased with increasing light intensity of tending. Conclusion ] Light transmittance felling can significantly improve the Height and DBH of Pinus koraiensis.