Ensuring safe utilization of hydrochars in sustainable agriculture: Insights into the phytotoxicity and plant-promoting effects of low molecular weight organic compounds (LMWOCs) based on the untargeted metabolomics analysis
文献类型：期刊论文
| 作者 | Xiong, Weijie1; Luo, Yuping1; Zhang, Muyuan2; Sun, Wei3; Yang, Yang2; Song, Dan2; Xiao, Ran1 |
| 刊名 | ENVIRONMENTAL RESEARCH
 |
| 出版日期 | 2025-10-15 |
| 卷号 | 283页码:122168 |
| 关键词 | Hydrothermal carbonization Phytotoxicity Plant growth enhancement LMWOCs Untargeted metabolomics analysis |
| ISSN号 | 0013-9351 |
| DOI | 10.1016/j.envres.2025.122168 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | Hydrothermal carbonization (HTC) converts agricultural residues into hydrochar for soil amendment, yet its phytotoxicity limits agricultural application. This study investigates hydrochar-derived dissolved organic matter (DOM) to unravel phytotoxicity mechanisms and proposes co-HTC as a mitigation strategy. Untargeted metabolomics identified low molecular weight organic compounds (LMWOCs) in hydrochar extracts from lignocellulosic biomass (ZB), swine manure (SM), and their 1:1 mixture. Seed germination assays revealed phytotoxicity (germination index [GI] reduction by 18.6-96.0 %) linked to phenolic derivatives, PAHs and furans, which increased with HTC temperature and lignocellulosic content. Co-HTC of ZB with SM reduced phytotoxic LMWOCs by 63.9-90.7 % through feedstock interactions, while enriching growth-promoting indoles and amino acids. Random forest modeling identified 4-methylcatechol, tyrosol and 5-HMF (r =-0.81 to-0.88) as dominant phytotoxins, validated via dose-response assays. Response surface optimization demonstrated non-toxic hydrochar (GI >70 %) production at 200 degrees C with 40-60 % ZB, balancing waste valorization and crop safety. This work elucidates the chemical basis of hydrochar phytotoxicity and establishes co-HTC as a sustainable strategy for safe agricultural reuse. |
| URL标识 | 查看原文 |
| WOS关键词 | HYDROTHERMAL CARBONIZATION ; ACID ; BIOMASS ; BIOSYNTHESIS ; NUTRIENT ; TYROSOL ; GROWTH |
| WOS研究方向 | Environmental Sciences & Ecology ; Public, Environmental & Occupational Health |
| 语种 | 英语 |
| WOS记录号 | WOS:001520651900001 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/215305]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 通讯作者 | Xiao, Ran |
| 作者单位 | 1.Southwest Univ, Coll Resources & Environm, Interdisciplinary Res Ctr Agr Green Dev Yangtze Ri, Chongqing 400715, Peoples R China; 2.Chongqing Acad Ecol & Environm Sci, Chongqing 401147, Peoples R China; 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiong, Weijie,Luo, Yuping,Zhang, Muyuan,et al. Ensuring safe utilization of hydrochars in sustainable agriculture: Insights into the phytotoxicity and plant-promoting effects of low molecular weight organic compounds (LMWOCs) based on the untargeted metabolomics analysis[J]. ENVIRONMENTAL RESEARCH,2025,283:122168. |
| APA | Xiong, Weijie.,Luo, Yuping.,Zhang, Muyuan.,Sun, Wei.,Yang, Yang.,...&Xiao, Ran.(2025).Ensuring safe utilization of hydrochars in sustainable agriculture: Insights into the phytotoxicity and plant-promoting effects of low molecular weight organic compounds (LMWOCs) based on the untargeted metabolomics analysis.ENVIRONMENTAL RESEARCH,283,122168. |
| MLA | Xiong, Weijie,et al."Ensuring safe utilization of hydrochars in sustainable agriculture: Insights into the phytotoxicity and plant-promoting effects of low molecular weight organic compounds (LMWOCs) based on the untargeted metabolomics analysis".ENVIRONMENTAL RESEARCH 283(2025):122168. |
入库方式： OAI收割
来源：地理科学与资源研究所
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