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间歇性深耕增加了土壤质量和生态系统的多功能性,在中国北方平原的流水土壤

Changwei Zhu¹, Shiji Wang¹, Guiying Jiang¹

¹Key Laboratory of Arable Land Quality Conservation in the Huanghuaihai Plain, Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Henan Agricultural University, Zhengzhou, 450046, China.

Journal of environmental management

|January 18, 2025

概括

将深耕 (DT) 纳入旋转耕作 (RT) 系统可以改善土壤健康和作物产量. 偶尔的DT增强了土壤的营养,微生物活动和生态系统的多功能性,提供了一个可持续的农业战略.

科学领域:

农业科学农业科学
土壤科学土壤科学
生态生态学生态生态学

背景情况:

密集耕作,就像旋转耕作 (RT) 一样,会降解土壤结构和有机物质.
可持续的耕作对营养循环和土壤健康至关重要.
北中国平原面临的挑战是RT诱导的土壤退化和停滞不前的小麦产量.

研究的目的:

评估不同耕作方式对土壤质量和生态系统多功能性 (EMF) 的影响.
为了比较将深耕 (DT) 与连续RT相结合的效果.
确定该地区可持续农业的最佳耕作策略.

主要方法:

在三年内评估了五种耕地处理 (RT-RT-RT,DT-RT-RT,DT-RT-SRT,DT-SRT-SRT,DT-SRT-RT).
测量了土壤营养,微生物生物质碳和 (Cmic和Nmic),酶活动,土壤质量指数 (SQI) 和EMF.
使用随机森林分析来确定EMF的关键驱动因素.

主要成果:

与连续RT相比,深耕 (DT) 显著改善了土壤特性和作物产量.
DT增强了可用的,,,Cmic,Nmic,酶活动,SQI和EMF.
DT-SRT-RT治疗显示SQI和EMF的最大增加,与RT-RT-RT相比,小麦产量增加了14.6%.

结论:

偶尔的深耕 (DT) 有效地恢复了由密集的旋转耕作 (RT) 降低的土壤结构和肥力.
纳入DT可以提高土壤质量,微生物活动和生态系统多功能性 (EMF).
DT-SRT-RT耕作策略提供了一种可持续的方法来改善土壤健康和作物生产率.

关键词:

生态系统的多功能性流水性土壤流水性土壤土壤酶活性土壤酶活性土壤微生物生物质.土壤质量指数土壤质量指数地地地地地地

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