摘要
以小兴安岭用材林为研究对象，在天然林以及人工林内各设置抚育间伐强度不同的6块样地。每块样地设置4种带宽，以未采伐样地为对照，研究不同抚育方式对林分土壤化学性质的影响。经过对采伐后样地内土壤化学性质的测定，结合主成分分析方法，对实验数据进行分析，结果表明：小兴安岭天然用材林的最佳抚育方式为10m带宽，25％-30％强度的抚育间伐；小兴安岭人工用材林的最佳抚育方式为14～18m带宽，20％强度的抚育间伐。
An experiment was conducted to study the effects of different tending felling patterns on soil chemical property of tim- ber stands in Xiaoxing＇ an Mountains by setting six sample plots on different cutting intensities with four kinds of bandwidth in each sample and a plot without cutting as a contrast. After the soil chemical properties were investigated to deal with data in the cutting sample plots by principal component analysis. The tending felling pattern under 10 m bandwidth and 25% - 30% intensity is the best for natural timber stands in Xiaoxing＇ an Mountains. The tending felling pattern under 14 m-18 m bandwidth and 20% intensity is the best for artificial timber stands in Xiaoxing＇ an Mountains.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2013年第10期14-18,39,共6页
Journal of Northeast Forestry University
基金
林业公益性行业科研专项(201204509)
关键词
抚育间伐
土壤化学性质
主成分分析
Tending felling
Soil chemical properties
Principal component analysis
