欢迎访问林草资源研究

林业资源管理 ›› 2016›› Issue (6): 50-53.doi: 10.13466/j.cnki.lyzygl.2016.06.010

• 科学研究 • 上一篇    下一篇

马尾松人工幼林营养元素积累及其分配特征

覃其云1, 张明慧2, 唐健1, 郭飞2, 陆海平1, 邓小军1   

  1. 1.广西壮族自治区林业科学研究院,南宁 530002;
    2.广西国有派阳山林场;广西 宁明 532500
  • 收稿日期:2016-09-23 修回日期:2016-10-14 出版日期:2016-12-28 发布日期:2020-11-02
  • 通讯作者: 唐健(1980-),男,高工,博士,研究方向为植物营养与土壤化学调控。Email:21712104@qq.com
  • 作者简介:覃其云(1981-),男,广西上林人,高工,硕士,研究方向为土壤肥力和植物营养生理。Email:yunling181520@163.com
  • 基金资助:
    广西松树人工林高效养分管理及配方施肥技术研究与示范(桂林科字[2013]第3号)

Nutrient Accumulation and Distribution in Young Pinus massoniana Plantation

QIN Qiyun1, ZHANG Minghui2, TANG Jian1, GUO Fei2, LU Haiping1, DENG Xiaojun1   

  1. 1. Guangxi Zhuang Autonomous Region Forestry Research Institute,Nanning 530002,China;
    2. Guangxi State Paiyangshan Forest Farm,Ningming,Guangxi 532500,China
  • Received:2016-09-23 Revised:2016-10-14 Online:2016-12-28 Published:2020-11-02

摘要: 通过野外调查和实验室分析,对马尾松各器官生物量及营养元素含量、积累量和分配进行了研究。结果表明:1)2.5a生和8.5a生马尾松不同器官营养元素总含量大小顺序分别为树叶>树根>树枝>树干、树叶>树枝>树根>树干,各器官营养元素含量大小顺序分别为N>K>Ca>P>Mg>Mn>Fe>B>Zn>Cu和N>Ca>K>Mg>P>Fe>Mn>Zn>B>Cu;2)2.5a生和8.5a生马尾松树体营养元素总积累量分别为180.69,617.46g/株。2.5a生和8.5a生各器官营养元素积累量大小次序分别为树叶>树枝>树干>树根、树干>树枝>树叶>树根。2.5a生和8.5a生马尾松树体各种营养元素积累量大小次序分别为N>Ca>K>P>Mg>Mn>Fe>Zn>B>Cu和N>Ca>K>Mg>P>Fe>Mn>Zn>B>Cu。马尾松幼林不同器官营养元素积累量随林龄增长而增加。树体各营养元素的分配与各器官生物量不成正比例关系。

关键词: 马尾松, 营养元素, 积累, 分配

Abstract: The content,accumulation and distribution of ten nutrient elements and biomass in different organs of Pinus massoniana were studied based on field investigation and lab analysis.The results show that:1)the order of total concentrations of nutrient elements in different organs of 2.5 and 8.5-year old Pinus massoniana was leaf>root>twig>trunk and leaf>twig>root>trunk.The order of concentrations of nutrient elements in 2.5 and 8.5-year old Pinus massoniana was N>K>Ca>P>Mg>Mn>Fe>B>Zn>Cu and N>Ca>K>Mg>P>Fe>Mn>Zn>B>Cu.2) The total nutrient accumulations at two different age classes plantation were 180.69 and 617.46 g per plant.The order of accumulations of ten nutrient elements in different organs of 2.5 and 8.5-year old Pinus massoniana was leaf>twig>trunk>root and trunk>twig>leaf>root.The order of accumulations of nutrient elements in 2.5 and 8.5-year old Pinus massoniana was N>Ca>K>P>Mg>Mn>Fe>Zn>B>Cu and N>Ca>K>Mg>P>Fe>Mn>Zn>B>Cu.So the concentrations of nutrient elements in different organs of young Pinus massoniana increased with the increase of age,the total accumulations of nutrient elements in leaf and twig of 2.5 year old trees was recorded as the highest,that of the 8.5 year old ones has become the highest in the trunk and twig.The content and accumulation of nutrient elements in different organs of Pinus massoniana were different.The distribution of nutrient elements in the tree body is not proportional to the biomass of different organ.

Key words: Pinus massoniana, nutrient elements, accumulation, distribution

中图分类号: