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生态学杂志 ›› 2001, Vol. ›› Issue (6): 62-64.

• 研究报告 • 上一篇    下一篇

玉米根际与非根际解磷细菌的分布特点

赵小蓉1, 林启美1, 孙焱鑫2, 张有山2, 张美庆2   

  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, 北京 100081
  • 收稿日期:2000-03-10 修回日期:2000-06-07 出版日期:2001-12-10
  • 基金资助:
    北京市自然科学基金重点项目(6971003)资助

Phosphobacteria Distribution in Rhizophere and Nonrhizosphere Soil of Corn

Zhao Xiaorong1, Lin Qimei1, Sun Yanxin2, Zhang Youshan2, Zhang Meiqing2   

  1. 1. Department of Soil & Water Sciences China Agricultural University Beijing, Beijing 100094;
    2. Institute of Plant Nutrition&Resource,Beijing A cademy of A gricult ural&Forest Science,Beijing 100081
  • Received:2000-03-10 Revised:2000-06-07 Online:2001-12-10

关键词: 沟叶结缕草, 草坪, 杂草群落, 幂函数法则, 空间异质性

Abstract: Rhizosphere and nonrhizosphere soils were sampled from corn field at harvest time.Total number and genus of the bacteria mineralizing lecithin or dissolving phosphate were measured.It was found that the number of either organic or inorganic phosphobacteria in the rhizosphere soil was 10 to 20 times higher than those in the nonrhizosphere soil.The community structure was much more complicated in the rhizosphere than in the nonrhizosphere.Pseudomonas and Flavobacteria were advantageous orgainc phosphobacteria in the rhizosphere, but Erwinia for inorganinc phosphobacteria.In nonrhizosphere, most of organic phosphobacteria were Bacillus. However, no advantageous genus of inorganic phosphobacteria were found in the nonrhizosphere soil.

Key words: Zoysia matrella, lawn, weed community, power law, spatial heterogeneity.

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