兴安落叶松母树林经营技术  

Management technique of parent stand of xing an larch

作　　者：胡伟民 亓祥昆 刘敏 杨延辉 朴楚炳 

机构地区：[1]黑龙江省兴隆林业局,黑龙江木兰县151925 [2]黑龙江省林科所,黑龙江哈尔滨150040

出　　处：《延边大学农学学报》2000年第3期176-181,共6页Agricultural Science Journal of Yanbian University

基　　金："六五";"七五"项目! (75 - 0 7- 0 1 - 2 7)

摘　　要：25～ 35年生兴安落叶松母树林丰产结构是密度为 30 0株 /hm2 ,Ⅰ级木占 75%、Ⅱ级木占 2 5%;偏雌、中间型、偏雄母树比例为 6∶0∶4,其球果产量为 2 0 3kg/hm2 ,种子品质也较好 .在促进开花结实措施中 ,以环状砍皮方法效果较好 ,结实率为 90 %、单株产量提高 60 %;施肥中磷肥的效果显著 ,其施肥量为 60 g/m2 .High yield structure of xingan larch of 25～35 years old was studied.The density is 300 plant per hectare,the tree of grade Ⅰ occupied 75%,grade Ⅱ occupied 25%,the ratio of female and male is 6∶0∶4, it's yield of ball is 203 kg per hectare.seeds quality is better.Effects of ring barking is the best among the measure of promoting abloom and seed,setting percentage is 90%,single plant yield raised 60%.The effect of phosphoric fertilizer is significant,it's quantity is 60 g/m 2.

关 键 词：兴安落叶松 母树林经营 丰产结构 种子产量 

分 类 号：S791.222[农业科学—林木遗传育种] S722.11[农业科学—林学]