沈阳农业大学学报2025，Vol.56Issue(4)：1-12,12.DOI:10.3969/j.issn.1000-1700.2025.04.001
不同灌溉方式对设施土壤团聚体稳定性及有机碳含量的影响
The Effect of Different Irrigation Methods on the Stability of Soil Aggregates and Organic Carbon Content in Greenhouse Soil
摘要
Abstract
[Objective]Irrigation is the primary way to obtain water for greenhouse crops.Different irrigation methods affect the formation and stability of aggregates.In addition,the formation of aggregates is not only affected by environmental factors,but also by the types and forms of cementing materials.This study aims to explore the effects of different irrigation methods on the stability of soil aggregates and organic carbon in facilities,and provide theoretical basis for water regulation in facilities agriculture and improvement of soil structure in facilities.[Methods]The soil cultivated under different irrigation methods(drip irrigation,infiltration irrigation and trench irrigation)for 12 consecutive years was used as the research object,and the test crop was tomato(Huafang 5).The stability of aggregates and the content and distribution characteristics of organic carbon in 0-40 cm soil were analyzed.[Results]Through the analysis of the composition and stability of aggregates by wet screening method,it was found that drip irrigation significantly increased the content of large aggregates in 20-40 cm soil layer,increased the average weight diameter and geometric average diameter,and reduced the average weight specific surface area and fractal dimension.Drip irrigation significantly increased the organic carbon content of large aggregates in 20-40 cm soil layer.The contents of granular organic carbon,mineral-bound organic carbon and easily oxidized organic carbon in macroaggregates were also increased.The redundancy analysis on aggregate related organic carbon is 82.09%,among which large aggregate organic carbon and microaggregate mineral bonded organic carbon are the main contributions to aggregate stability index.[Conclusion]Under long-term facility cultivation conditions,drip irrigation is more conducive to improving soil aggregate stability and organic carbon content.关键词
设施土壤/灌溉方式/团聚体/有机碳Key words
facility soil/irrigation method/aggregate/organic carbon分类
农业科技引用本文复制引用
邹洪涛,贺荣涛,张一峰,任立军,范庆锋,虞娜,张玉玲,张玉龙..不同灌溉方式对设施土壤团聚体稳定性及有机碳含量的影响[J].沈阳农业大学学报,2025,56(4):1-12,12.基金项目
沈阳市科学技术局项目(23-409-2-03) （23-409-2-03）
国家现代农业产业技术体系辽宁创新团队岗位专家项目(Z20250190) （Z20250190）
