您好，欢迎访问黑龙江省农业科学院 机构知识库！
黑龙江省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Conservation tillage regulates the assembly, network structure and ecological function of the soil bacterial community in black soils

文献类型： 外文期刊

作者： Liu, Zhuxiu 1 ; Gu, Haidong 1 ; Liang, Aizhen 1 ; Li, Lujun 1 ; Yao, Qin 3 ; Xu, Yanxia 4 ; Liu, Junjie 1 ; Jin, Jian 1 ; Liu, Xiaobing 1 ; Wang, Guanghua 1 ;

作者机构： 1.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Mollisols Agroecol, Harbin 150081, Peoples R China

2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

3.Heilongjiang Bayi Agr Univ, Coll Agron, Daqing 163319, Peoples R China

4.Heilongjiang Acad Agr Sci, Branch Anim Husb & Vet, Qiqihar 161005, Peoples R China

关键词： Tillage practices; Nitrogen fixation; Carbon degradation; Bacterial networks; Assembly processes

期刊名称：PLANT AND SOIL （ 影响因子：4.993； 五年影响因子：5.44 ）

ISSN： 0032-079X

年卷期： 2022 年 472 卷 1-2 期

页码：

收录情况： SCI

摘要： Aims Traditional tillage represents a serious threat to the stability of soil ecosystems. Understanding the response mechanisms of soil microbial community assembly to different tillage practices is a major topic of soil ecological research. Methods Here, we investigated the bacterial community structures and assembly in bulk and rhizosphere soils of soybeans grown under traditional tillage (moldboard plow, MP) and two conservation tillage practices, namely, no-tillage (NT) and ridge tillage (RT), using high-throughput sequencing methods. Results Compared with MP, NT and RT increased the relative abundances of nitrifying bacteria of Nitrosospira sp. and the nitrogen-fixing bacteria of Mesorhizobium sp., Bradyrhizobium sp. and Burkholderia sp., but decreased the abundance of carbon-degrading bacteria, especially Blastococcus sp., Streptomyces sp. and Sphingomonas sp. The altered functional bacteria were mostly affiliated with biomarkers and keystone taxa in the NT and RT networks. For the results of network properties and assembly processes, we found that NT and RT habited a more stable bacterial network structure and a lower homogenizing dispersal value. Soil pH was the primary factor regulating both the bacterial community structures and assembly processes under the three tillage practices. Conclusions The soil bacterial community structures and assembly processes were profoundly altered by tillage practices. The changes in functional bacteria indicated that conservation tillage might contribute to soil carbon sequestration, while stimulating nitrogen fixation and nitrification.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：黑龙江省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台