中国农业科学 ›› 2008, Vol. 41 ›› Issue (3): 760-765 .doi: 10.3864/j.issn.0578-1752.2008.03.017

• 土壤肥料·节水灌溉·农业生态环境 • 上一篇    下一篇

蚯蚓和微生物对土壤养分和重金属的影响

申为宝,杨洪强   

  1. 山东农业大学园艺学院
  • 收稿日期:2007-05-15 修回日期:2007-07-05 出版日期:2008-03-10 发布日期:2008-03-10
  • 通讯作者: 杨洪强

Buffer capacity of the soil biota to soil nutrient and heavy metal

  

  1. 山东农业大学园艺学院
  • Received:2007-05-15 Revised:2007-07-05 Online:2008-03-10 Published:2008-03-10

摘要: 蚯蚓和微生物是重要的土壤生物,对提高土壤生态系统的稳定性和改变土壤养分及重金属的有效性有重要影响。本文综述了蚯蚓和微生物在改善土壤结构、调控土壤养分等方面的作用,以及它们通过吸附、富集、沉淀、溶解、氧化还原等行为,对重金属生物有效性产生的影响,目的是为现代农业生产提供一定的理论依据。

关键词: 蚯蚓, 微生物, 养分, 重金属

Abstract: The soil is a complex system with organic and abio-life-form. The soil-buffer is one of the important properties of the soil. The biodiversity and multifunctional nature of the soil improve the stability and harmony of the ecosystem. The soil biota plays an important role in the soil ecosystem. The author systematically described the function of the soil fauna (earthworms) and microbes in improving the soil nutrient buffer such as improving soil structure and controlling soil nutrients, the behavior in changing the soil physical and chemical properties through bio-sorption, enrichment, precipitation, dissolution and redox, as well as the influence to the bioavailability of heavy metals and the formation of heavy metal toxicity. The purpose is to provide a theoretical rationale for the modern agriculture, especially for organic agricultural.

Key words: soil biota, nutrition, heavy metal, soil buffer ability