Hydrochar as an effective amendment for enhancing soil aggregation and carbon sequestration: evidence from comparative microcosm experiments
文献类型：期刊论文
| 作者 | Sun, Liyang4; Wang, Jim J.5; Wei, Sun1,2; Ye, Pingping4; Deng, Yue4; Meng, Xiangtian1,2; Li, Ronghua1,2; Zhang, Zongsheng3; Su, Xiaoxuan4; Xiao, Ran4 |
| 刊名 | BIOCHAR
 |
| 出版日期 | 2026-03-04 |
| 卷号 | 8期号:1页码:69 |
| 关键词 | Soil quality Organic input Hydrochar Carbon-deficient cropland Carbon fraction Soil aggregates |
| ISSN号 | 2524-7972 |
| DOI | 10.1007/s42773-025-00547-y |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | Enhancing soil organic carbon (SOC) and aggregate stability is pivotal for maintaining soil health and ensuring agricultural sustainability. However, conventional organic amendments often exhibit suboptimal efficiency in achieving these goals. Hydrochar, synthesized via hydrothermal carbonization (HTC), offers a promising solution by integrating labile and recalcitrant carbon fractions to synergistically address these challenges. However, its mechanisms of action remain not fully understood. In the present study, a microcosmic incubation experiment was conducted to evaluate the short-term impacts of hydrochar on SOC sequestration and soil aggregation in comparison with biochar and straw in a purple soil (Entisol). Hydrochars derived from maize straw (SH), pig manure (PH), and Zanthoxylum stalks (HH) were also compared to assess feedstock-driven variability. The results demonstrated the superior performance of hydrochars, particularly those derived from Zanthoxylum stalks, which significantly increased the mean weight diameter (MWD) by 70-100% and SOC content by 143-149%, outperforming biochar and straw. Specifically, hydrochar-originated carbon persisted primarily as particulate organic matter (POM) and accumulated in macro-aggregate, while shifts in microbial communities contributed to SOC stabilization. In comparison, soil aggregation was driven by labile carbon fractions (e.g., dissolved organic carbon, DOC) and soil microorganisms, specifically Actinobacteria and Ascomycota. Feedstock properties, such as the C/N ratio and lignin content, modulated the effectiveness of hydrochar as a soil amendment. Notably, stalk-derived hydrochar exhibited superior carbon retention (12% total carbon loss vs. 30-44% for other amendments) and aggregate stability due to its recalcitrant lignin structure. Nutrient content and ratio further influenced these outcomes, with manure-derived hydrochar promoting microbial biomass carbon (845 mg kg-1 vs. 350 mg kg-1 in control), while stalk-derived hydrochar was more effective at optimizing carbon sequestration. These findings highlighted the dual role of hydrochar in enhancing soil structure and SOC sequestration, with feedstock selection critically determining functional priorities. Such insights could provide valuable guidance for tailoring hydrochar production and application to improve agricultural sustainability through soil quality improvement. |
| URL标识 | 查看原文 |
| WOS关键词 | ORGANIC-MATTER ; HYDROTHERMAL CARBONIZATION ; MICROORGANISMS ; METAANALYSIS ; PYROLYSIS ; BIOCHAR ; GROWTH ; FUNGI |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:001705669100001 |
| 出版者 | SPRINGER SINGAPORE PTE LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221211]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 通讯作者 | Su, Xiaoxuan; Xiao, Ran |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 2.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China; 3.Chinese Acad Sci, Inst Northeast Geog & Agroecol, State Key Lab Black Soils Conservat & Utilizat, Changchun 130102, Jilin, Peoples R China 4.Southwest Univ, Coll Resources & Environm, Interdisciplinary Res Ctr Agr Green Dev Yangtze Ri, Chongqing 400715, Peoples R China; 5.Louisiana State Univ, Agr Ctr, Sch Plant Environm & Soil Sci, Baton Rouge, LA 70803 USA; |
| 推荐引用方式 GB/T 7714 | Sun, Liyang,Wang, Jim J.,Wei, Sun,et al. Hydrochar as an effective amendment for enhancing soil aggregation and carbon sequestration: evidence from comparative microcosm experiments[J]. BIOCHAR,2026,8(1):69. |
| APA | Sun, Liyang.,Wang, Jim J..,Wei, Sun.,Ye, Pingping.,Deng, Yue.,...&Xiao, Ran.(2026).Hydrochar as an effective amendment for enhancing soil aggregation and carbon sequestration: evidence from comparative microcosm experiments.BIOCHAR,8(1),69. |
| MLA | Sun, Liyang,et al."Hydrochar as an effective amendment for enhancing soil aggregation and carbon sequestration: evidence from comparative microcosm experiments".BIOCHAR 8.1(2026):69. |
入库方式： OAI收割
来源：地理科学与资源研究所
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