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长期的草回报导致了小麦和大米之间的土壤微生物社区组成和社区组装过程的显著差异

Siyuan Cui¹, Shangqi Xu², Guangqiao Cao¹

¹Nanjing Institute of Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing, China.

Frontiers in microbiology

|March 14, 2025

概括

长期的吸管回收最初会增加大米-小麦系统中的土壤微生物多样性,但长期应用可能会减少它. 土壤微生物群落受到草回收的显著改变,受到pH和总有机碳等因素的影响.

科学领域:

农业科学农业科学
土壤科学土壤科学
微生物学微生物学

背景情况:

草回归是促进土壤健康和生产力的.
它对大米-小麦系统中微生物群落的长期影响尚未完全理解.

研究的目的:

调查不同吸管回收时间对土壤微生物群落组成和组合的影响.
了解环境因素和微生物群落之间的关系.

主要方法:

在不同的吸管回归时间 (0-11年) 后采集了土壤样本.
进行了微生物测序和PCoA分析.
进行了环境因素和细菌群落之间的相关性分析.

主要成果:

土壤微生物的α多样性显示出双相模式 (增加然后减少) 与草回归持续时间.
草回归显著转移了细菌类,特别是蛋白质细菌.
总有机碳和pH值是影响微生物群落的关键因素,特别是在大米收获期间.

结论:

草回归对土壤微生物多样性和大米-小麦系统中的社区结构产生重大影响.
微生物社区的聚集是由决定性过程和环境因素 (如TOC) 驱动的.
结果为管理微生物群落提供了洞察力,以恢复土壤肥沃性.

关键词:

农业生态系统农业生态系统环境因素环境因素米-小麦旋转周期土壤微生物群落土壤微生物群落土壤pH值土壤pH值草回报回报草回报回报

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