Building soil organic matter differing in physical fractions for fertilizer nitrogen retention
文献类型：期刊论文
| 作者 | Tang, Quan8; Li, Qingde8; Wang, Xiaozhi8; Huang, Yuanyuan10; Daniell, Tim J.11; Wu, Enxuan8; Wang, Jing12; Zhang, Feiyi8; Li, Zhenwang13; Chang, Scott X.2 |
| 刊名 | SOIL BIOLOGY & BIOCHEMISTRY
 |
| 出版日期 | 2026-06-01 |
| 卷号 | 217页码:110136 |
| 关键词 | Straw return Biochar Nitrogen retention Mineral-associated organic matter Particulate organic matter Microbial necromass |
| ISSN号 | 0038-0717 |
| DOI | 10.1016/j.soilbio.2026.110136 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Enhancing the formation of soil organic matter (SOM) to facilitate fertilizer nitrogen (N) retention is a crucial strategy for addressing the dual challenges of food security and climate change. Particulate (POM) and mineralassociated organic matter (MAOM) fractions, which differ in formation pathways, persistence, and functioning, can exert divergent controls on fertilizer N retention. However, the mechanisms by which fertilizer N is retained within the two fractions under contrasting long-term SOM building strategies (e.g., straw and biochar return) remain elusive. Using a 13-year field experiment and combining 15N tracing with microbial metagenomics and application of molecular biomarkers, we demonstrate that both straw and biochar-based SOM building strategies promoted fertilizer N retention (by 8.4 to 17.4-fold and 10.9 to 13.5-fold, respectively) but into contrasting fraction-specific SOM pools. Fertilizer N was preferentially retained in MAOM under straw treatments, with MAOM-15N recovery increasing 6.6 to 9.0-fold. Whereas fertilizer N was preferably retained in POM under biochar treatments, with POM-15N recovery increasing 15.6 to 19.2-fold, resulting in 73% higher POM-15N to MAOM-15N ratios compared to straw treatments. Straw promoted MAOM-N via N assimilation by high-yield microbial strategists with subsequent, predominantly fungal, necromass-N formation (increases by 55.3%- 66.8%). In contrast, the innate chemical recalcitrance of biochar enlarged the persistent POM reservoir, promoting POM-N formation by physical occlusion and chemical adsorption. The results suggest that fertilizer N retention under different SOM building strategies is fraction- and application-specific, depending on biotic and abiotic retention mechanisms. These findings have developed for the first time a fraction-targeted framework elucidating linkage between SOM building strategies and fertilizer N retention, and could facilitate greater understanding of the coupling of carbon sequestration with N retention in terrestrial ecosystems with straw or biochar amendment. |
| URL标识 | 查看原文 |
| WOS关键词 | IMMOBILIZATION ; NITRIFICATION ; CARBON ; ACID |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:001710252500001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221209]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Cheng, Yi |
| 作者单位 | 1.Shanxi Agr Univ, Inst Ecoenvironm & Ind Technol, Taiyuan 030031, Peoples R China; 2.Univ Alberta, Dept Renewable Resources, Edmonton, AB T6G 2E3, Canada; 3.Justus Liebig Univ, Liebig Ctr Agroecol & Climate Impact Res, D-35392 Giessen, Germany; 4.Nanjing Normal Univ, Sch Geog, Nanjing 210023, Peoples R China; 5.Anhui Univ, Sch Resources & Environm Engn, Hefei 230601, Peoples R China 6.Univ Coll Dublin, Environm Sci & Earth Inst, Belfield D04, Dublin, Ireland; 7.Univ Coll Dublin, Sch Biol, Belfield D04, Dublin, Ireland; 8.Yangzhou Univ, Coll Environm Sci & Engn, Yangzhou 225009, Peoples R China; 9.Justus Liebig Univ Giessen, Inst Plant Ecol, D-35392 Giessen, Germany; 10.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Tang, Quan,Li, Qingde,Wang, Xiaozhi,et al. Building soil organic matter differing in physical fractions for fertilizer nitrogen retention[J]. SOIL BIOLOGY & BIOCHEMISTRY,2026,217:110136. |
| APA | Tang, Quan.,Li, Qingde.,Wang, Xiaozhi.,Huang, Yuanyuan.,Daniell, Tim J..,...&Cheng, Yi.(2026).Building soil organic matter differing in physical fractions for fertilizer nitrogen retention.SOIL BIOLOGY & BIOCHEMISTRY,217,110136. |
| MLA | Tang, Quan,et al."Building soil organic matter differing in physical fractions for fertilizer nitrogen retention".SOIL BIOLOGY & BIOCHEMISTRY 217(2026):110136. |
入库方式： OAI收割
来源：地理科学与资源研究所
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