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应用生态学报 ›› 1999, Vol. 10 ›› Issue (6): 721-724.

• 研究论文 • 上一篇    下一篇

中国盐碱土壤中AM菌的生态分布

刘润进, 刘鹏起, 徐坤, 吕志范   

  1. 莱阳农学院菌根生物技术实验室, 莱阳265200
  • 收稿日期:1997-04-08 修回日期:1998-10-10 出版日期:1999-11-25 发布日期:1999-11-25
  • 通讯作者: 刘润进,男,1960年9月15日生,博士,教授,硕士研究生导师 E-mail:liurj@lyac.edu.cn
  • 基金资助:

    国际科学基金(C/2101-1)和山东省自然科学基金资助项目(Y96D03056).

Ecological distribution of arbuscular mycorrhizal fungi in saline alkaline soils of China

Liu Runjin, Liu Pengqi, Xu Kun, Lu Zhifan   

  1. Laboratory of Mycorrhizal Biotechnology, Laiyang Agricultural College, Laiyang 265200
  • Received:1997-04-08 Revised:1998-10-10 Online:1999-11-25 Published:1999-11-25

摘要: 对我国盐碱土壤中丛枝菌根(Arbuscular Mycorrhiza,AM)菌的种属构成、生态分布状况进行了研究。结果表明,不同地区AM菌种属构成不同,其种属组成、分布与土壤类型、碱化度和土壤有机质含量有关。盐渍化砂土、壤土和粘土中,Glomus属的真菌数量最多,Acaulospora属次之,而Glomus属中的G.mosseae则是分布最为广泛的菌种。随土壤碱化度的增加,Glomus mosseae出现频率随之相对增加。在一定范围内有机质含量越高,土壤中AM菌种和属的种类就越多。AM菌的种属组成因不同寄主植物而异,其中豆科植物根围中AM菌分布的种属数量最多。

关键词: 丛枝菌根菌, 盐碱土壤, 生态分布, 氮沉降, 陆地生态系统, 土壤酶活性, 氮磷添加

Abstract: The compositions of species and genera of arbuscular mycorrhizal (AM) fungi in saline-alkaline soils of China and their ecological distributions were studied in this paper. They were correlated to soil type, alkalinity and organic matter content. The species number of Glomus genus was the highest in sandy, loam and clay soils, followed by Acaulospora genus. Glomus mosseae was the dominant species in these soils. The frequency of G. mosseae was increased with increasing alkalinity. In a certain extent, the higher the content of soil organic matter, the more the species were isolated. The components of the genus and species of AM fungi were also influenced by host plants, and the numbers of them in the rhizospheric soils of leguminous plants were greater than those in others.

Key words: Arbuscular mycorrhizal fungi, Saline-alkaline soil, Ecological distribution, nitrogen and phosphorus addition, terrestrial ecosystem., soil enzyme activity, nitrogen deposition