不同抚育间伐强度对中龄日本落叶松人工林生长量的影响  

Effect of Different Tending and Thinning Intensity on Growth of Middle-Age Larix kaempferi Plantation

作　　者：谭雨亭 邢文锋 谢延平 李先艳 桑子阳 高晗 

机构地区：[1]五峰县国有北风垭林场,宜昌443400 [2]五峰土家族自治县林业局,宜昌443400 [3]宜昌市林业科学研究所,宜昌443111

出　　处：《湖北林业科技》2015年第3期11-12,25,共3页Hubei Forestry Science and Technology

摘　　要：以10a生日本落叶松人工林为材料,分别进行15%,25%,40%不同间伐强度试验,抚育间伐6年后,调查林木胸径与树高,分析表明强度抚育间伐对胸径影响与不抚育、弱间伐强度相比差异极显著;中度间伐与不抚育差异显著。不同抚育间伐强度对高生长量、单位面积林分蓄积影响差异不显著。We adopted three different （including 15 percent ,25 percent and 40 percent） thinning intensity experiments on the 10‐year‐old Larix kaempferi plantation .After six years of tending and thinning ,DBH and tree height were investi‐gated .The experimental results indicated that the heavy cutting’s effect on DBH were extremely significantly different with no cutting or light intermediate cuttings ,and there were significantly different with moderate cuttings and no cut‐tings .Different intensity of intermediate cuttings has no significant difference on high growth and stand volume per unit area .

关 键 词：日本落叶松 抚育间伐强度 中龄林 五峰县 

分 类 号：S753.75[农业科学—森林经理学] S791.223[农业科学—林学]