污泥土地利用及土壤有机碳响应机制研究进展

张轶洋; 高冰洁; 周小国; 陈祥; 董滨; 蔡辰

doi:10.13205/j.hjgc.202506001

污泥土地利用及土壤有机碳响应机制研究进展

doi: 10.13205/j.hjgc.202506001

张轶洋¹,
高冰洁¹,
周小国²,
陈祥³,
董滨¹,
蔡辰^1, ,

1. 同济大学环境科学与工程学院, 上海 200092;
2. 长江生态环保集团有限公司技术中心, 武汉 430014;
3. 中国长江三峡集团有限公司长江经济带生态环境国家工程研究中心, 武汉 430010

基金项目:

国家自然科学基金项目“生物稳定化污泥施用对土壤有机碳动态变化的影响机制”（42277296）；国家重点研发计划项目"长江经济带典型城市多源污泥协同处置集成示范"（2020YFC1908705）

详细信息

作者简介:
张轶洋（2000—），男，硕士研究生。zyy_yyz_zyy@tongii.edu.cn

通讯作者:
蔡辰（1988—），男，副教授，主要研究方向为碳中和理论与技术。caic@tongii.edu.cn

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出版历程
- 收稿日期: 2024-12-28
- 录用日期: 2025-02-15
- 修回日期: 2025-01-23

Research progress on sludge land use and response mechanisms of soil organic carbon

1. College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;
2. Yangtze River Ecology and Environmental Protection Group Co., Ltd., Technology Center, Wuhan 430014, China;
3. China Yangtze Three Gorges Corporation, Yangtze River Economic Belt Ecological Environment National Engineering Research Center, Wuhan 430010, China

摘要

摘要: 我国城市污泥处理处置已发展到新的阶段，工作重点逐渐从污泥处理转向资源化利用。污泥经稳定化处理后用于土地利用，对土壤有机碳的积累和固持具有正面作用。对污泥土地利用的方式、标准及相关的应用研究案例进行了综述。结果表明，污泥土地利用不仅可以改善土壤性质，还能够有效提高土壤有机碳含量。通过对比不同污泥土地利用方式，发现园林绿化和生态修复相结合的土地利用形式具有较大的发展潜力。进一步总结了污泥土地利用对土壤有机碳的影响机制，分别从污泥有机质组分、物理化学过程和微生物驱动因素等方面进行了深入分析。在物理化学过程方面，污泥的施用可显著改变土壤结构和pH，进而影响土壤有机碳的转化与固存。在微生物过程方面，污泥施用后微生物群落和功能的变化是影响土壤有机碳周转的关键因素，其中微生物残体对于有机碳累积至关重要。通过系统梳理国内外相关研究进展，可为污泥的土地利用及可持续管理提供理论支撑与指导。
- 污泥土地利用 /
- 土壤有机碳 /
- 污泥组分 /
- 微生物群落 /
- 功能基因
Abstract: Urban sludge treatment and disposal in China have entered a new phase， shifting from simple treatment to resource utilization. The application of stabilized sludge in land use has been shown to positively contribute to the accumulation and sequestration of soil organic carbon （SOC）. This paper reviewed the methods， standards， and mechanisms of SOC response in sludge land use， and found that sludge land use not only improved soil properties but also effectively enhanced SOC content. By comparing different application methods， it was found that the combined approach integrating landscaping and ecological restoration demonstrated significant development potential. The mechanisms underlying the impact of sludge land use on SOC were further summarized， including aspects of sludge organic matter composition， physicochemical processes， and microbial drivers. In terms of physicochemical process， sludge application significantly altered soil structure and pH， thereby influencing SOC transformation and sequestration. Regarding microbial processes， changes in microbial communities and functions following sludge application are key factors affecting SOC turnover， with microbial residues playing a critical role in SOC accumulation. By systematically reviewing relevant research progress domestically and internationally， this study can provide theoretical support and guidance for the sustainable management and land use of sludge.
- sludge land use /
- soil organic carbon /
- sludge components /
- microbial community /
- functional gene

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