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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (4): 34-41.doi: 10.11924/j.issn.1000-6850.2013-2528

所属专题： 园艺

• 林学 园艺 园林 • 上一篇    下一篇

环境因子对长白山区天然核桃楸林生长的影响

张丽鹏 杨雨春 赵珊珊 张忠辉 张立民 林士杰 周春艳 沈广平 田义新 王兆生   

  • 收稿日期:2013-09-25 修回日期:2013-10-25 出版日期:2014-02-05 发布日期:2014-02-05
  • 基金资助:
    国家林业局林业公益性行业科研专项“吉林长白山珍贵阔叶树种保育关键技术研究”(201204309)；吉林省科技厅计划发展项目“长白山区珍稀野生核桃楸果材兼用林选育研究”(20100260)；吉林省财政厅资助项目“核桃楸种源区划、优势种质选择及无性繁育技术研究”；吉林省林业厅项目“核桃楸良种选育技术研究”。

The Impact of Environmental Factors on the Growth of Juglans mandshurica in Natural Forest of Changbai Mountains

  • Received:2013-09-25 Revised:2013-10-25 Online:2014-02-05 Published:2014-02-05

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摘要： 以长白山区14块核桃楸为主具有代表性的林分样地为研究对象，分析核桃楸的生长指标与14个环境因子的相关性，以期揭示环境因子对核桃楸生长的影响。结果表明：（1）不同林分组成的核桃楸林对核桃楸的生长影响显著，其中含落叶松的核桃楸林中径生长优于其他林分的核桃楸，而且郁闭度对树高影响显著(R=0.5049)。（2）坡向和坡位分别与胸径、材积(P＜0.05)和树高、胸径、材积(P＜0.01)呈显著和极显著相关，而坡度与其材积呈显著负相关(R=-0.5016)。（3）海拔与胸径和材积呈显著正相关(R=0.4918、R=0.5203)，经度与材积呈显著负相关(R=-0.5428)。（4）土壤厚度和土壤碱解氮含量对其树高的影响均显著，作用大小为：土壤碱解氮含量＞土壤厚度；土壤中有机质含量和土壤pH值对其胸径的影响均显著，作用大小为：土壤中有机质含量＞土壤pH值；土壤中碱解氮含量与材积呈极显著正相关(R=0.8314)。

关键词: 区系特征, 区系特征

Abstract: In order to reveal the effect of environmental factors on the growth of Juglans mandshurica Maxim, 14 representative sample area of it was selected and the correlation with 14 environmental factors and the growth index of J. mandshurica were analyzed. Result showed that: (1) different stand composition had significant effect on the growth of J. mandshurica, and diameter growth of J. mandshurica in larch forest was superior to non-larch forest, furthermore, canopy density also had significant effect on tree height of it (R=0.5049). (2) Slope degree and slope aspect had significant effect on DBH, volume (P＜0.05) and height, DBH, volume (P＜0.01), respectively, and slope position had significant negative effect on volume (R=-0.5016). (3) Altitude had positive significant correlation between DBH and volume (R=0.4918, R=0.5203), while latitude had negative correlation with volume (R=-0.5458). (4) Soil thickness and alkaline hydrolysis nitrogen content had significant effect on height of it, and the order was as follows: alkaline hydrolysis nitrogen content＞soil thickness; soil organic and pH had significant effect on DBH of it, and the order was as follows: soil organic＞pH; and alkaline hydrolysis nitrogen content had positive significant correction with volume (R=0.8314).