[1]杨蕾,赵彩鸿,邢鸿林,等. 疏伐强度对红皮云杉人工林林木生长和林分蓄积的影响[J].西北林学院学报,2023,38(4):207-213.[doi:10.3969/j.issn.1001-7461.2023.04.26]
　YANG Lei,ZHAO Cai-hong,XING Hong-lin,et al. Effects of Thinning Intensity on the Forest Growth and Stand Accumulation of Picea koraiensis Plantion[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2023,38(4):207-213.[doi:10.3969/j.issn.1001-7461.2023.04.26]
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 疏伐强度对红皮云杉人工林林木生长和林分蓄积的影响()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第38卷
期数:
2023年第4期
页码:
207-213
栏目:
出版日期:
2023-07-31

文章信息/Info

Title:
 Effects of Thinning Intensity on the Forest Growth and Stand Accumulation of Picea koraiensis Plantion
文章编号:
1001-7461(2023)04-0207-07
作者:
 杨蕾; 赵彩鸿; 邢鸿林; 杨玲*; 沈海龙
 （东北林业大学 林学院 林木遗传育种国家重点实验室，黑龙江 哈尔滨 150040）
Author(s):
 YANG Lei; ZHAO Cai-hong; XING Hong-lin; YANG Ling*; SHEN Hai-long
 (State Key Laboratory of Tree Genetics and Breeding,School of Forestry,Northeast Forestry University,Harbin 150040,Heilongjiang,China)
关键词:
 ; 红皮云杉; 人工林; 疏伐强度; 林木生长; 林分蓄积量
Keywords:
Picea koraiensis;  plantation;  thinning intensity;  tree growth;  stand stocking per hectare
分类号:
S791.18
DOI:
10.3969/j.issn.1001-7461.2023.04.26
文献标志码:
A
摘要:
 以黑龙江省佳木斯市孟家岗林场红皮云杉中龄人工纯林为研究对象，2017年在6种疏伐强度下设立固定样地，连续3 a调查及计算不同疏伐强度处理后的林木生长情况和林分蓄积情况。结果表明，随着疏伐强度增大，树高和活枝下高呈先增后减的趋势，胸径逐渐增大，冠幅呈增大趋势；平均立木材积逐渐增大，单位面积蓄积量呈先增后减趋势，大径材比例、大径材平均立木材积和大径材单位面积蓄积量呈增大趋势。较大强度（50%疏伐强度）的疏伐更适于红皮云杉中龄人工林培育大径材，疏伐处理3 a（2020年生长季末）后，与对照相比，其胸径增长21.85%，东西冠幅和南北冠幅分别增长18.22%和17.18%，平均立木材积增长66.81%，大径材比例增加51.39%，大径材平均立木材积增长22.04%，均优于其余强度；综合3 a数据可知，其树高、冠幅、平均立木材积年增量更大，胸径和平均立木材积的年均增长量最大。通过分析不同疏伐强度处理后的林木生长差异，为建立适宜的红皮云杉林分密度调控技术提供理论依据，为培育红皮云杉大径材提供参考。
Abstract:
Picea koraiensis plantation in the Mengjiagang Forest Farm in Jiamusi City,Heilongjiang Province was taken as the research object.Fixed plots were set up under six thinning intensities in 2017,the tree growth and stand accumulation for three consecutive years were measured.The results showed that with the increase of thinning intensity,tree height and live branch height increased first and then decreased,while DBH and crown width increased gradually.The average standing volume increased gradually,and the stand stocking per hectare increased first and then decreased.The proportion,the average standing volume,and the stand stocking per hectare of large diameter timber showed increasing trends.The greater thinning intensity (50%) was more suitable for the cultivation of large diameter of medium age pure plantation of P.koraiensis.After three years of thinning treatment,compared with the control,DBH increased by 21.85%,crown width increased by 18.22% (east-west) and 17.18% (south-north),the average standing volume increased by 66.81%,the proportion of large diameter timber increased by 51.39%,and the average standing volume of large diameter timber increased by 22.04%,all of which were better than others.The data from three years indicated that the annual growth of tree height,crown width and the average standing volume were larger,and the average annual growth of DBH and average standing volume were the largest.By analyzing the growth differences of the trees treated with different thinning intensities,this study provides a theoretical basis for the establishment of suitable stand density regulation technology of P.koraiensis and a reference for the cultivation of large-diameter P.koraiensis tree.

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备注/Memo

备注/Memo:
 收稿日期：2022-09-24 修回日期：2022-12-30
基金项目：国家重点研发项目（2017YFD0600600）。
第一作者：杨蕾。研究方向：人工林定向培育理论与技术。E-mail:yl-nefuer@nefu.edu.cn
*通信作者：杨玲，博士，教授，博士生导师。研究方向：人工林定向培育理论与技术。E-mail:yangl-cf@nefu.edu.cn
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