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生态学杂志 ›› 1993, Vol. ›› Issue (6): 29-33.

• 研究报告 • 上一篇    下一篇

小兴安岭阔叶红松林凋落物产量及动态的研究

刘传照, 李景文, 潘桂兰, 李传荣   

  1. 东北林业大学红松研究所, 黑龙江带岭153106
  • 收稿日期:1992-06-29 修回日期:1992-12-01 出版日期:1993-12-10

Litter Production and Dynamics in Broadleavcd-Korean Pine Forests in Xiaoxingan Mountaiils

Liu Chuanzhao, Li Jingwen, Pan Guilan, Li Chuanrong   

  1. Institute of Korean Pine Studies, Nortbeast Forestry University, Dailing, Heilongjiang 153106
  • Received:1992-06-29 Revised:1992-12-01 Online:1993-12-10

关键词: 微根管, 品种, 冬小麦, 根系发育

Abstract: Three-year study was done on litter production and dynamics under broadleaved-Korean pine forests in the Xiaoxingan Mountains.Results showed that annual litter fall is 4.25?0.17t.ha-1.yr-1.Among total litterfall,leaf litter constitute 73.9%,branch 5.7%,bark 6.0%, flower 2.8%,seeds and fruits 8.6%,and miscellaneous materials 3.0%.Monthly litterfall show a binomial curve with two peaks in June and September,respectively. The total litterfall in September and October is 63.7% of the total.Standing crop of litter on forest floor under broadleaved-Korean pine forests was 9.719t.ha-1.The decomposition rate of litter is 0.437t.ha-1,yr-1.The time for decomposing 95% of litter is 6.9 years.

Key words: minirhizotron, cultivar, winter wheat, root development.