首页|Characteristics of the microbial communities regulate soil multi-functionality under different cover crop amendments in Ultisol

Characteristics of the microbial communities regulate soil multi-functionality under different cover crop amendments in Ultisol

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
The use of cover crops is a promising strategy for influencing the soil microbial consortium,which is essential for the delivery of multiple soil functions(i.e.,soil multifunctionality).Nonetheless,relatively little is known about the role of the soil microbial consortium in mediating soil multifunctionality under different cover crop amendments in dryland Ultisols.Here,we assessed the multifunctionality of soils subjected to four cover crop amendments(control,non-amended treatment;RD,radish monoculture;HV,hairy vetch monoculture;and RDHV,radish-hairy vetch mixture),and we investigated the contributions of soil microbial richness,network complexity,and ecological clusters to soil multifunctionality.Our results demonstrated that cover crops whose chemical composition differed from that of the main plant crop promoted higher multifunctionality,and the radish-hairy vetch mixture rendered the highest enhancement.We obtained evidence that changes in soil microbial richness and network complexity triggered by the cover crops were associated with higher soil multifunctionality.Specifically,specialized microbes in a key ecological cluster(ecological cluster 2)of the soil microbial network were particularly important for maintaining soil multifunctionality.Our results highlight the importance of cover crop-induced variations in functionally important taxa for promoting the soil multifunctionality of dryland Ultisols.

cover cropssoil multifunctionalitymicrobial richnessnetwork complexityecological cluster

Guilong Li、Xiaofen Chen、Wenjing Qin、Jingrui Chen、Ke Leng、Luyuan Sun、Ming Liu、Meng Wu、Jianbo Fan、Changxu Xu、Jia Liu

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Soil and Fertilizer & Resources and Environment Institute,Jiangxi Academy of Agricultural Sciences,Nanchang 330200,China

Key Laboratory of Acidified Soil Amelioration and Utilization,Ministry of Agriculture and Rural Affairs,Nanchang 330200,China

Ecological Experimental Station of Red Soil,Chinese Academy of Sciences,Yingtan 335211,China

国家重点研发计划China Agriculture Research System of MOF and MARASpecial Program for Basic Research and Talent Training of Jiangxi Academy of Agricultural Sciences,ChinaSpecial Program for Basic Research and Talent Training of Jiangxi Academy of Agricultural Sciences,China国家自然科学基金

2021YFD1901201-05CARS-22JXSNKYJCRC202301JXSNKYJCRC20232532160766

2024

10.1016/j.jia.2023.11.050

农业科学学报(英文)
中国农业科学院农业信息研究所

农业科学学报(英文)

CSTPCD
影响因子：0.576
ISSN：2095-3119
年,卷(期)：2024.23(6)
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