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›› 1989, Vol. 25 ›› Issue (2): 106-112.

• 论文及研究报告 • 上一篇    下一篇

马尾松林杆材阶段养分循环及密度关系的研究

田大伦   

  1. 中南林学院
  • 收稿日期:1987-08-28 修回日期:1900-01-01 出版日期:1989-03-25 发布日期:1989-03-25

STUDIES ON NUTRIENT ELEMENTS CYCLING AND DENSITY EFFECT OF POLE STAGE OF PINUS MASSONIANA STAND

Tian Dalun   

  1. Central-South Forestry College
  • Received:1987-08-28 Revised:1900-01-01 Online:1989-03-25 Published:1989-03-25

摘要: 我们于1978—1981年在广西禄峰山调查了14年生马尾松人工林标准地16块,以探讨马尾松人工林各器官养分含量的变化规律、营养元素的积累以及密度与生物循环和养分利用的关系。结果表明:在杆材林阶段,Ⅱ密度组林分(3210株/ha)的生物量、净生产量和养分积累量最高,养分利用效率也最高。

关键词: 马尾松, 营养元素, 养分循环, 密度

Abstract: This paper is based on the studies of 14-year-old Masson pine plantations of four density group at Mount. Loufong in Guangxi autonomous region during 1978—1981. It dealed with the change laws of nutrient contents of the pine organ and the accumulation, distribution and biologic cycles of nutrient elements of various density Masson pine stand of pole stage. The results indicated that Ⅱ density group (3210 stems/ha) stand had the greatest biomass and accumulation of nutrients and the highest rate of nutrient using. As a reference the studies is significant for regulating and controlling stem-density of pole stage of Masson pine stand, tending and thinning and applying fertilizer and maintaining ecologic balance and high productivity of forest site.

Key words: Masson Pine, Nutrient element, Nutrient cycling, Density