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应用生态学报 ›› 1999, Vol. 10 ›› Issue (6): 725-728.

• 研究论文 • 上一篇    下一篇

红壤微生物量在土壤-黑麦草系统中的肥力意义

姚槐应, 何振立, 陈国潮, 黄昌勇   

  1. 浙江大学环境与资源学院, 杭州310029
  • 收稿日期:1998-04-20 修回日期:1998-07-16 出版日期:1999-11-25 发布日期:1999-11-25
  • 通讯作者: 姚槐应,男,25岁,博士生,目前从事土壤生物化学及微生物方面的研究,发表论文多篇.E-mail:xeyang@zjau.edu.cn E-mail:xeyang@zjau.edu.cn
  • 基金资助:

    国家自然科学基金(49571042)和欧共体资助项目(CI1 3-CT93-0009).

Fertility significance of microbial biomass in red soil ryegrass system

Yao Huaiying, He Zhenli, Chen Guochao, Huang Changyong   

  1. Zhejiang University, Hangzhou 310029
  • Received:1998-04-20 Revised:1998-07-16 Online:1999-11-25 Published:1999-11-25

摘要: 研究了红壤微生物量与土壤养分循环及植物生长的内在联系。结果表明,红壤微生物量不仅与土壤有机碳、全氮、有效氮等显着相关,而且与植物干物质产量及吸N量也存在着良好的相关性,可作为指示红壤肥力水平和作物产量的重要指标。试验测得的红壤微生物量N周转期较短,每年通过微生物周转的N素达到微生物量氮含量的1.5倍到数倍。

关键词: 红壤, 微生物量, 土壤-黑麦草系统

Abstract: The study on the inherent relations of microbial biomass in red soil with soil nutrient cycling and ryegrass growth shows that the microbial biomass was not only significantly correlated with soil organic C, total N and available N, but also highly correlated with dry matter yield and Nuptake of plants,indicating that soil microbial biomass could be used as an important indicator for soil fertility and plant production. The turnover period of microbial biomass Nin red soil was relatively short, and the annual flux of Nthrough microbes was as 1.5 times or more as microbial biomass N.

Key words: Red soils, Microbial biomass, Soil-ryegrass system