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›› 1997, Vol. 33 ›› Issue (zk2): 19-25.

• 论文及研究报告 • 上一篇    下一篇

第二代杉木人工林林下地被物生物量和养分积累的定位研究 I.林下地被物生物量动态

刘煊章 田大伦 文仕知 周志华   

  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

RESEARCHES ON BIOMASS AND NUTRIENT ACCUMULATION OF UNDERSTORY IN THE SECOND GENERATION OF YOUNG CHINESE FIR PLANTATION I.BIoMASS DYNAMICS OF UNDERSTORY

Liu Xuanzhang,Tian Dalun,Wen Shizhi,Zhou Zhihua   

  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: 对会同集水区第二代杉木幼林林下地被物生物量进行了5年的定位研究,探讨了杉木幼林林下灌木层、草本层和死地被物层的生物量动态变化。结果表明,杉木幼林林下地被物生物量为1.50-3.85t/hm2,并随林龄的增大,林下灌木层生物量明显减少,其生物量大小顺序为根>茎>叶,草本层生物量的大小顺序为地下部分>地上部分。

关键词: 杉木幼林, 灌木层, 草本层, 死地被物层, 生物量

Abstract: The biomass of understory in the secondary generation of chinese fir stand has been studied for 5 consecutive years at Huitong watersheds.Biomass dynamics in understory shrubs,herbs and litters were discussed.The results showed that the biomass of under-story in young chinese fir stand was 1.50—3.85t/hm2,the biomass of shrub decreasedas the stand age increasing.The biomass order of shrub was root>stem>leaf,while the biomass order of herb was under ground part>aboveground part.

Key words: Chinese fir, Young plantation, Shrub stratum, Herb stratum, Forest litter, Biomass