外源改良物质添加下盐渍土固碳效应及保护机制
Carbon Sequestration Effects and Protective Mechanisms of Saline Soil under the Addition of Exogenous Amendment Materials
DOI: 10.12677/aep.2026.162023, PDF,   
作者: 王嘉缘：浙江师范大学地理与环境科学学院，浙江 金华
关键词: 土壤固碳；盐渍土；微生物固碳；有机碳；Soil Carbon Sequestration； Saline Soil； Microbial Carbon Sequestration； Organic Carbon
摘要: 土壤固碳(SCS)是应对气候变化的关键途径，通过农业实践将大气中的二氧化碳转化为土壤有机碳(SOC)。然而，土壤盐渍化对SOC的稳定与积累构成了巨大的挑战。本研究综述了外源物质添加下盐渍土的固碳效应及保护机制。研究发现，施用秸秆、生物炭等可显著提升盐碱地的SOC含量，而生物有机肥和微生物肥料的添加则通过改善土壤结构和微生物活性，增强了土壤的固碳能力。此外，本综述还探讨了土壤有机碳的物理保护、矿物保护和微生物保护三种主要保护机制，以及环境因子的驱动机制。最后强调了改良剂添加在降低盐渍化土壤盐度、提高有机碳含量中的作用以及温度等环境因素对微生物固碳活性的影响。
Abstract: Soil carbon sequestration (SCS) is a key approach to addressing climate change, converting atmo- spheric carbon dioxide into soil organic carbon (SOC) through agricultural practices. However, soil salinization poses significant challenges to SOC stabilization and accumulation. This study reviews the carbon sequestration effects and protective mechanisms of saline soils under exogenous material amendments. Research findings indicate that applying straw, biochar, and similar materials can significantly increase SOC content in saline-alkali soils, while the addition of bio-organic fertilizers and microbial fertilizers enhances soil carbon sequestration capacity by improving soil structure and microbial activity. Additionally, this review explores the three primary protective mechanisms of soil organic carbon—physical protection, mineral protection, and microbial protection—as well as the driving mechanisms of environmental factors. Finally, it emphasizes the role of ameliorants in reducing soil salinity and increasing organic carbon content, as well as the impact of environmental factors such as temperature on microbial carbon sequestration activity.
文章引用：王嘉缘. 外源改良物质添加下盐渍土固碳效应及保护机制[J]. 环境保护前沿, 2026, 16(2): 222-230. https://doi.org/10.12677/aep.2026.162023

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