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生态学杂志 ›› 1999, Vol. ›› Issue (2): 63-66.

• 研究报告 • 上一篇    下一篇

熏蒸法测定土壤微生物量碳的改进

林启美1, 吴玉光2, 刘焕龙3   

  1. 1. 中国农业大学土壤和水科学系, 北京100094;
    2. 北京市农林科学院植物营养与资源研究所, 100081;
    3. 北京市农业学校, 100085
  • 收稿日期:1998-05-04 出版日期:1999-04-10
  • 基金资助:
    北京市自然科学基金

Modification of Fumigation Extraction Method for Measuring Soil Microbial Biomass Carbon

Lin Qimei1, Wu Yuguang2, Liu Huanlong3   

  1. 1. Department of Soil and Water Sciences, China Agricultural University, Beijing 100094;
    2. The Institute of Plant Nutrition and Agricultual Resources, Beijing Academy of Agriculture and Forest, 100081;
    3. Beijing Agricultural Sckool, 100085
  • Received:1998-05-04 Online:1999-04-10

关键词: 红松, 基径生长, 枝长生长, 生长模型, 非线性混合模型

Abstract: Both K2Cr2O7-H2SO4 additional heating method and the traditional K2Cr2O7-HgO-H2SO4-H3PO4 method were used in measuring the carbon in soil K2SO4extract. It was found that the former method is much more safe,simple and fast than the later one.The results obtained by the K2Cr2O7-H2SO4 additional heating method are also more accurate and precise than those by the traditional K2Cr2O7-HgO-H2SO4-H3PO3 one .Thus,the K2Cr2O7-H2SO4 additional heating method can be used in the routine analysis measurement of soil microbial biomass carbon.

Key words: Korean pine, branch diameter growth, branch length growth, growth model, nonlinear mixed model.