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›› 1997, Vol. 33 ›› Issue (zk2): 181-188.

• 论文及研究报告 • 上一篇    下一篇

马尾松天然林随年龄生长过程中的生物产量及养分分布

文仕知 陈亮明 田大伦   

  1. 中南林学院 株洲412006
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1997-11-25 发布日期:1997-11-25

BIoMASS AND NUTRIENT DISTRIBUTION IN NATURAL PINUS MASSONIANA FORESTS WITH DIFFERENT AGES

Wen Shizhi,Chen Liangming,Tian Dalun   

  1. Central—South Forestry College Zhuzhou 412006
  • Received:1900-01-01 Revised:1900-01-01 Online:1997-11-25 Published:1997-11-25

摘要: 马尾松天然林随年龄生长过程的生物量及养分积累分布进行研究,结果表明:12—31年生林分中,25年生林分生产力最高,为9.07t/hm2;树叶中养分含量以21年生最高,表明此时林分正在生理旺盛期; Ca主要积累于树皮中;每生产1t干物质,12年生林分需大量元素3.763kg,21年生林分需4.695kg。

关键词: 马尾松, 天然林, 营养元素

Abstract: The results showed that in 12 to 31-year-old Pinus massoniana forests,the produc-tivity of 25-year-old forest in the highest,which is 9.07t/hm2.The nutrient content in leaves of 21-year-old forest is the largest,which indicated that the forest is of physio-logical exuberance.Ca accumulates mainly in the bark.The requirement of nutrient ele-ments to produce one ton dry biomass is 3.0763kg and 4.695kg for 12-and 21-year-old forest respectively.

Key words: Pinus massoniana, Natural forest, Nutrient elements