详细信息
抚育间伐对人工落叶松断面积和蓄积生长的影响 被引量:22
Study on the Growth Trend of the Basal Area and Volume of Larix olgensis Plantation
文献类型:期刊文献
中文题名:抚育间伐对人工落叶松断面积和蓄积生长的影响
英文题名:Study on the Growth Trend of the Basal Area and Volume of Larix olgensis Plantation
第一作者:李春明
机构:[1]中国林业科学研究院资源信息研究所;[2]国家林业局退耕还林办公室
年份:2007
期号:3
起止页码:90-93
中文期刊名:林业资源管理
外文期刊名:Forest Resources Management
收录:北大核心:【北大核心2004】;
基金:国家"十一五"科技攻关课题"东北天然林保护与可持续经营技术试验示范"(2006BAD03A08)的部分研究内容
语种:中文
中文关键词:间伐;断面积;蓄积;落叶松
外文关键词:thinning, the basal area, volume, Larix olgensis
分类号:S792.99
摘要:以汪清林业局的20块人工落叶松为例,对间伐林分的断面积和蓄积进行生长趋势分析,用普雷斯勒公式计算林分的平均生长率,分析不同间伐强度对林分断面积和蓄积的影响,结果表明:间伐林分在间伐初期的断面积和蓄积小于未间伐林分,但随着林龄的增大,间伐林分断面积和蓄积向未间伐林分渐近;间伐强度越大,年平均生长率越大;方差分析表明,不同的间伐强度对林分断面积和蓄积生长的影响差异显著。
With Larix olgensis plantation of the WangQing Forest Bureau as an example, the paper studied the growth trend of the basal area and volume, calculated the average growth rate of the plantation by pressler formula, analyzed the effects of thinning on the basal area and volume. The result shows that in initial stages the basal area and volume of thinned plots is less than those under control, but the basal area and volume of thinned plots gradually approached to those under control with the increase of age; the growth rate will increase with the increase of thinning intensity; the analysis of variance indicated the effects of thinning intensity on the basal area and volume is prominent.
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