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生态学杂志 ›› 1993, Vol. ›› Issue (1): 56-58.

• 研究报告 • 上一篇    下一篇

独墅湖颤蚓翻新底泥量的估算

曹勇   

  1. 苏州城建环保学院, 215008
  • 收稿日期:1992-04-15 修回日期:1992-08-13 出版日期:1993-02-10

Quantitative Estimation of Sediment Renewal by Tubificids in Dushu Lake

Cao Yong   

  1. Suzhou Institute of Urban Construction & Environmental Protection, 215008
  • Received:1992-04-15 Revised:1992-08-13 Online:1993-02-10

关键词: 无机氮, 同位素, 氨基糖, 微生物过程, 土壤

Abstract: Tubificids are sampled mainly at an interval of two months in 1984.Six species are found in the sediment of Dushu lake, and Limnodrilus hoffmeistri and Branchura sowerbyi are dominant species. The defecation rates of these two species are measured and the amounts of sediment renewal are estimated.

Key words: inorganic nitrogen, isotope, amino sugar, microbial process, soil.