From molecular characteristics to microbial functions: DOM transformation driven by sewage sludge compost in mine topsoil revealed by a large-scale field study
文献类型：期刊论文
| 作者 | Dong, Yuecen1; Jia, Yufeng1; Xu, Xingkun1; Yu, Mingdong2; Zhou, Ping3; Qi, Guangxia4; Yu, Bao5; Liu, Jianguo1 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2025-08-01 |
| 卷号 | 517页码:164559 |
| 关键词 | Sewage sludge compost Dissolved organic matter Field experiments Fourier-transform ion cyclotron resonance mass spectrometry Functional annotation |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2025.164559 |
| 产权排序 | 5 |
| 文献子类 | Article |
| 英文摘要 | The application of sewage sludge compost (SSC) for abandoned mine land reclamation represents a nature-based solution. As the core medium of soil nutrient cycling, the characteristics and transformation of dissolved organic matter (DOM) are critical indicators reflecting the efficacy of mine land restoration. This study investigated longterm SSC effects on DOM transformation in mine topsoil via large-scale field experiments. SSC application improved topsoil fertility and plant growth, boosting plant-derived organic inputs that enhanced DOM molecular diversity and richness. Under SSC application, the introduction of Chloroflexi as a dominant phylum promoted microbial co-utilization of labile/recalcitrant carbon, increasing organic decomposition and biosynthesis functional gene abundance. For application rates, 30 t/ha delivered fewer nutrients than 120 t/ha, slowing humification processes, while 225 t/ha caused nitrogen overload, worsening runoff-mediated losses. For application methods, spreading application concentrated nutrients in subsurface layers, intensifying plant-microbe nitrogen competition and decoupling of microbial catabolic-anabolic metabolisms under nitrogen limitation. Consequently, SSC mixing application at 120 t/ha emerged as the optimal strategy for balancing carbon-nitrogen allocation, enhancing organic matter accumulation and stability. Over three years, the aromaticity of M120 topsoil DOM progressively increased, achieving a dynamic equilibrium among DOM input, decomposition, and stabilization through plant-microbe synergy. Overall, this study provides theoretical foundations for applying SSC to enhance soil carbon sequestration and sustainable nutrient management in abandoned mine land reclamation. |
| URL标识 | 查看原文 |
| WOS关键词 | DISSOLVED ORGANIC-MATTER ; SEQUESTRATION ; FRACTIONATION ; COMMUNITIES ; ADSORPTION |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001508981300004 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/214595]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 通讯作者 | Yu, Bao; Liu, Jianguo |
| 作者单位 | 1.Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China; 2.Zhejiang Econ & Informat Ctr, Hangzhou 310000, Peoples R China; 3.Kunming Dianchi Water Treatment Co Ltd, Kunming 650032, Peoples R China; 4.Beijing Technol & Business Univ, Sch Ecol & Environm, Beijing 100048, Peoples R China; 5.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Yuecen,Jia, Yufeng,Xu, Xingkun,et al. From molecular characteristics to microbial functions: DOM transformation driven by sewage sludge compost in mine topsoil revealed by a large-scale field study[J]. CHEMICAL ENGINEERING JOURNAL,2025,517:164559. |
| APA | Dong, Yuecen.,Jia, Yufeng.,Xu, Xingkun.,Yu, Mingdong.,Zhou, Ping.,...&Liu, Jianguo.(2025).From molecular characteristics to microbial functions: DOM transformation driven by sewage sludge compost in mine topsoil revealed by a large-scale field study.CHEMICAL ENGINEERING JOURNAL,517,164559. |
| MLA | Dong, Yuecen,et al."From molecular characteristics to microbial functions: DOM transformation driven by sewage sludge compost in mine topsoil revealed by a large-scale field study".CHEMICAL ENGINEERING JOURNAL 517(2025):164559. |
入库方式： OAI收割
来源：地理科学与资源研究所
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