长白落叶松大径材定向培育技术的研究  

Directive breeding of Larix olgensis for large dimension timber

作　　者：赵庆喜 庄学强 孙艳波 张成福 曹飞 吴耀先 

机构地区：[1]岫岩满族自治县林业局,辽宁鞍山114300 [2]辽宁省森林经营研究所,辽宁丹东118002

出　　处：《吉林林业科技》2007年第1期34-35,38,共3页Journal of Jilin Forestry Science and Technology

摘　　要：对长白落叶松大径材定向培育的试验表明:25 a生长白落叶松间伐后8 a的生长变化以525株.hm-26、00株.hm-2的保留密度生长量最大,胸径年生长量在0.5-0.6 cm以上,年材积平均生长量在7.6 m3.hm-2以上;培育大径材的初植密度以2 500株.hm-2或3 300株.hm-2为宜。The trial on directive breeding of Larix olgensis for large dimension timber shows following results： After thinning 8 years to the stand at 25 - yr- old, the most growth increment has been gained while reserve density at 525trees·hm^-2 and 600 trees·hm^-2 , mean annual growth in diameter and in volume are 0.5 -0.6 cm and 7.6 m^3·hm^-2, respectively. It concluded that the initial density should be 2 500 trees·hm^-2 or 3 300 trees·hm^-2 for the large dimension timber of Larix olgensis. La

关 键 词：长白落叶松 大径材 定向培育 

分 类 号：S791.255[农业科学—林木遗传育种]