原生动物与解磷微生物协同解磷作用

生态学杂志 ›› 2003, Vol. ›› Issue (3): 84-86.

原生动物与解磷微生物协同解磷作用

孙焱鑫¹, 林启美², 赵小蓉²

1. 北京市农林科学院植物营养与资源研究所, 北京 100089;
2. 中国农业大学土壤和水科学系, 北京 100094

收稿日期:2002-04-08 修回日期:2002-07-29 出版日期:2003-03-10
通讯作者: 孙焱鑫,1970年生,男,宁夏石嘴山人,在读博士生,主要从事微生物生态、资源与环境信息技术研究,发表论文8篇.
基金资助:
国家自然科学基金资助项目(40171055)

Interaction of protozoa and phosphate-solubilizing bacteria on rock phosphate dissolution

SUN Yanxin¹, LIN Qimei², ZHAO Xiaorong²

1. Institute of Plant Nutrition and Resource, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100089, China;
2. Department of Soil and Water Sciences, China Agricultural University, Beijing 100094, China

Received:2002-04-08 Revised:2002-07-29 Online:2003-03-10

摘要/Abstract

摘要： 磷是农业生产重要的限制因素之一,土壤生物包括原生动物和微生物在土壤磷素转化过程中起着重要的作用。通过纯培养和土壤培养试验发现,供试的原生动物能够提高磷矿粉的有效磷,土壤有效磷含量也显著增加。所溶解出来的磷很大一部分以无机磷酸盐的形式贮藏在细胞内,熏蒸时才释放出来,少部分磷转化为生物量磷。原生动物与解磷菌之间没有显著的相互促进作用.

关键词: 湿地, 土壤微生物量碳氮磷, 容重, 粘粒, 土壤剖面

Abstract: Phosphorusp is one of the limited factors for agricultural production. Both protozoa and microorganisms play important roles in the P transformation of soil. Through pure culture and soil incubation experiments, it was found that the tested protozoa of Colopodia,Oxytricna and Australothrix had significant activity in dissolving rock phosphate. Soil available P increased largely due to the inoculation. A large amount of the dissolved P was absorbed by the organisms, and released after chloroform fumigation. Significant amount of the P was changed to biomass P. However, no significant interaction was found between the tested protozoa and phosphate solubilizing bacteria.

Key words: Wetland, Soil microbial biomass C, N, and P, Bulk density, Soil clay granule, Profiles

中图分类号:

S154.34

孙焱鑫, 林启美, 赵小蓉. 原生动物与解磷微生物协同解磷作用[J]. 生态学杂志, 2003, (3): 84-86.

SUN Yanxin, LIN Qimei, ZHAO Xiaorong. Interaction of protozoa and phosphate-solubilizing bacteria on rock phosphate dissolution[J]. cje, 2003, (3): 84-86.

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