北方农业学报 ›› 2022, Vol. 50 ›› Issue (2): 38-46.doi: 10.12190/j.issn.2096-1197.2022.02.05

• 土壤肥料·生理生化 • 上一篇    下一篇

内蒙古农牧交错带农田与草地土壤真菌群落特征差异性分析

韩丽1, 李立军1, 赵举2, 张艳丽1, 尹春艳1,2, 沙松3   

  1. 1.内蒙古农业大学 农学院,内蒙古 呼和浩特 010019;
    2.内蒙古自治区农牧业科学院,内蒙古 呼和浩特 010031;
    3.呼伦贝尔农垦集团三河农牧场有限公司,内蒙古 三河 022256
  • 收稿日期:2022-03-04 出版日期:2022-04-20 发布日期:2022-06-20
  • 通讯作者: 李立军(1972—),男,教授,博士,博士生导师,主要从事农业生态与耕地保育的研究工作。赵 举(1972—),男,研究员,博士,主要从事农业生态及栽培耕作技术的研究工作。
  • 作者简介:韩 丽(1996—),女,硕士研究生,研究方向为农业生态学。
  • 基金资助:
    内蒙古自治区科技重大专项(2020ZD0005-0401,2019ZD003); 内蒙古自治区科技成果转化项目(CGZH2018141); 呼和浩特市科技计划项目(2020-农-1)

Characteristics of soil fungal community in farmland-grassland of Inner Mongolia agro-pastoral ecotone

HAN Li1, LI Lijun1, ZHAO Ju2, ZHANG Yanli1, YIN Chunyan1,2, SHA Song3   

  1. 1. College of Agriculture,Inner Mongolia Agricultural University,Hohhot 010019,China;
    2. Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China;
    3. Hulun Buir Agricultural Reclamation Group Sanhe Agriculture and Ranch Co.,Ltd.,Sanhe 022256,China
  • Received:2022-03-04 Online:2022-04-20 Published:2022-06-20

摘要: 【目的】明确内蒙古农牧交错带农田与草地生态系统土壤真菌群落结构与多样性特征的差异性。【方法】利用高通量测序技术对内蒙古农牧交错带大面积农田与草地分布的生态区土壤进行了微生物测序,系统分析了各生态区域农田与草地土壤真菌群落结构及多样性的差异特征。【结果】农田和草地土壤的优势真菌门均为子囊菌门(Ascomycota)、担子菌门(Basidiomycota)、被孢霉门(Mortierellomycota);农田土壤子囊菌门和被孢霉门总丰度高于草地,而草地土壤担子菌门总丰度高于农田。草地土壤真菌α多样性指数高于农田。大兴安岭南麓农田和草地土壤α多样性指数均较高。土壤β多样性指数分析结果表明,农田土壤真菌群落分布受作物类型和地理位置因素的影响明显。担子菌门、油壶菌门(Olpidiomycot)和子囊菌门是农田土壤真菌组间差异的标志物种,而草地土壤真菌组间差异的标志物种分别为担子菌门、油壶菌门、球囊菌门(Glomeromycota)和被孢霉门。【结论】草地土壤物种数目明显高于农田土壤,大兴安岭南麓农田与草地土壤真菌群落多样性表现较高。

关键词: 内蒙古, 农牧交错带, 农田, 草地, 土壤真菌, 群落结构, 多样性指数

Abstract: 【Objective】To better understand the differences in soil fungal community structure and diversity between farming and grassland ecosystems in Inner Mongolia agro-pastoral ecotone.【Methods】The soil microorganisms in large area of farmland and grassland in the agro-pastoral ecotone of Inner Mongolia were sequenced using high throughput sequencing technology. The differences in soil fungal community structure and diversity between farmland and grassland in each ecological area were systematically analyzed.【Results】The dominant fungi in farmland and grassland soils were Ascomycota,Basidiomycota and Mortierellomycota. The total abundance of Ascomycota and Mortierellomycota in farmland soil was higher than that in grassland,while the total abundance of Basidiomycota in grassland soil was higher than that in farmland. The soil fungi α diversity index in grassland was higher than that in farmland. The soil α diversity index of farmland and grassland was high in the south foothill of Daxing′anling. According to the β diversity index analysis,the fungal distribution of farmland soil fungal community was significantly affected by crop types and geographical location. Basidiomycota,Olpidiomycot and Ascomycota are the marker species for inter group variations between farmland soil fungal groups. While the marker species for inter group differences between grassland soil fungal groups are Basidiomycota,Olpidiomycot,Glomeromycota and Mortierellomycota.【Conclusion】The number of fungal species in grassland soil was significantly higher than in farmland soil. In the south foothill of Daxing′anling,the diversity of farmland and grassland soil fungal communities was high.

Key words: Inner Mongolia, Agro-pastoral ecotone, Farmland, Grassland, Soil Fungi, Community structure, Diversity index

中图分类号: 

  • S154.3