[1]沙子舟,范少辉,冯随起,等. 不同强度修枝对杉木人工林生长的影响[J].西北林学院学报,2022,37(1):131-136.[doi:10.3969/j.issn.1001-7461.2022.01.19]
　SHA Zi-zhou,FAN Shao-hui,FENG Sui-qi,et al. Effects of Different Pruning Intensities on the Growth of Cunninghamia lanceolata Plantations[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2022,37(1):131-136.[doi:10.3969/j.issn.1001-7461.2022.01.19]
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 不同强度修枝对杉木人工林生长的影响()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第37卷
期数:
2022年第1期
页码:
131-136
栏目:
出版日期:
2022-01-31

文章信息/Info

Title:
 Effects of Different Pruning Intensities on the Growth of Cunninghamia lanceolata Plantations
文章编号:
1001-7461(2022)01-0131-06
作者:
 沙子舟1; 范少辉2; 冯随起3; 叶代全4; 马祥庆1; 何宗明1*
 （1.福建农林大学 林学院，福建 福州 3510000；2.国际竹藤中心 竹藤科学与技术重点实验室，北京 100102；3.福建省邵武卫闽国有林场，福建 邵武 354006；4.福建省洋口国有林场，福建 顺昌 353211）
Author(s):
 SHA Zi-zhou1; FAN Shao-hui2; FENG Sui-qi3; YE Dai-quan4; MA Xiang-qing1; HE Zong-ming1*
 (1.College of Forestry,Fujian Agriculture and Forestry University,Fuzhou 350002,Fujian,China; 2.Key Laboratory for Bamboo and Rattan,International Center for Bamboo and Rattan,Beijing 100102,China; 3.Shaowu Weimin State-Owned Forest Farm,Fujian Province,Shaowu 354006,Fujian,China; 4.Yangkou State-Oowned Forest Farm,Shunchang 353211,Fujian,China)
关键词:
 ; 杉木人工林; 修枝强度; 无节材; 林分生长
Keywords:
Cunninghamia lanceolata plantation;  pruning intensity;  knot-free timber;  stand growth
分类号:
S791.27
DOI:
10.3969/j.issn.1001-7461.2022.01.19
文献标志码:
A
摘要:
 以福建省邵武卫闽国有林场的杉木人工林为研究对象，探索人工修枝对杉木人工林生长的影响，以期为杉木无节材的科学培育提供理论依据。采用随机区组设计在4年生杉木林中建立4种不同修枝强度（修掉树干直径6、8、10、12 cm位置以下的枝条）的试验小区30个，在各试验小区中随机选择修枝木和不修枝对照木，修枝木每年修枝1次直至修枝高度达7 m后停止修枝。试验后连续20 a调查试验林杉木生长情况。结果表明，修枝对杉木树高生长没有显著影响；修枝后1 a（5年生）至修枝后8 a（12年生），6 cm和8 cm的高强度修枝对杉木胸径和单株材积生长量有显著抑制作用，10 cm和12 cm的中低强度修枝对杉木胸径和单株生长量有显著促进作用；杉木修枝后20 a与未修枝杉木相比，6 cm强度修枝处理杉木的树高、胸径和单株材积生长量分别降低了0.4%、3.7%和3.7%，8 cm强度修枝处理杉木树高增加了2.0%，胸径和单株材积生长量分别降低了4.4%和2.2%，10 cm强度修枝处理杉木树高、胸径和单株材积生长量分别增加了6.5%、8.0%和6.7%，12 cm强度修枝处理杉木树高、胸径和单株材积生长量分别增加了5.5%、6.2%和8.5%，但不同修枝强度与对照杉木树高、胸径和单株材积总生长量均无显著差异。
Abstract:
 In order to determine the effects of pruning on the growth of Chinese fir (Cunninghamia lanceolata) plantations and provide theoretical basis for knot-free timber plantation management,4-year-old Chinese fir plantations were chosen in Weimin State-Owned Forest Farm of Shaowu,Fujian Province.The random block design was adopted to establish 30 treatment plots with 4 different pruning intensities (the removal of all branches to predetermined stem diameters of 6,8,10,and 12 cm).The pruned and non-pruned trees in the plots were randomly selected.The pruning management was conducted once annually until the height of the branches reached seven meters.And then,the growth of Chinese fir plantation was investigated for 20 years in order to determine the long-term impacts of different pruning intensities on the height,DBH,and volume growth of Chinese fir.The results showed that there was no significant effect of pruning on the height of Chinese fir.The significant effects of pruning on DBH,individual volume,and stand volume of Chinese fir were founded in one to eight years after pruning.The 6 cm and 8 cm high-intensity pruning treatments had significant negative effects on DBH and individual volume growth,while the 10 cm and 12 cm intensity pruning treatments had significant positive effects on DBH and individual volume growth.Pruning was found to have no significant effects on the Chinese fir growth 20 years after the pruning.Compared with no pruning treatments at 20 years after pruning,the growth of height,DBH and individual volume with the 6 cm pruning intensity treatment decreased by 0.4%,3.7% and 3.7%,respectively,the growth of DBH,and individual volume with 8 cm pruning intensity decreased by 5% and 2%,respectively,the growth of height,DBH,and individual volume with the 10 cm pruning intensity treatments increased by 6.5%,8.0% and 6.7%,respectively,the growth of height,DBH,and individual volume with the 12 cm pruning intensity treatments increased by 5.5%,6.2% and 8.5%,respectively.However,no significant differences were found in height,DBH and total volume among different pruning intensity treatments and their unpruned control at 20 years after pruning.

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备注/Memo

备注/Memo:
 收稿日期：2021-02-24修回日期：2021-05-09
基金项目：“十三五”国家重点研发计划项目(2016YFD0600303-02)；福建省科技重大专项（2018NZ0001-1）；福建农林大学科技创新专项基金(CX2X2019045G)。
第一作者：沙子舟。研究方向：森林培育。E-mail:429158749@qq.com
*通信作者：何宗明，研究员，硕士生导师。研究方向：人工林长期生产力。E-mail：hezm2@126.com
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