Characteristics and controls of inorganic and organic phosphorus transformation during long-term paddy soil evolution
文献类型：期刊论文
| 作者 | Luo, Yuan -Jun2,3; Huang, Lai -Ming1,2; Yuan, Da -Gang3 |
| 刊名 | SOIL & TILLAGE RESEARCH
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 224页码:11 |
| ISSN号 | 0167-1987 |
| 关键词 | Soil chronosequence Phosphorus fraction Anthropogenic changes Pedogenesis Multi -temporal agro-ecosystem |
| DOI | 10.1016/j.still.2022.105524 |
| 通讯作者 | Huang, Lai -Ming(huanglm@igsnrr.ac.cn) |
| 英文摘要 | Information on phosphorus (P) transformation during long-term paddy soil evolution is important for main-taining rice yield and nutrient management. This study was aimed to reveal the characteristics and controls of inorganic and organic P transformation during paddy soil evolution over a millennial time scale using both sequential chemical extraction and solution 31P nuclear magnetic resonance spectroscopy. Results show that the rate and trajectory of P evolution in the topsoil differ markedly from that of the illuvial horizon. The amount of apatite P, non-occluded P, occluded P and total P in the topsoils increased rapidly during the early stage of paddy soil evolution (< 50 yrs) due to anthropogenic P additions, but declined in the older paddy soils due to the leaching loss of P sorbents (CaCO3 and Fe/Al oxides); thus, the added P cannot be efficiently retained by the older paddy soils. Total organic P including phosphate monoester in the topsoils reached maximum in the 300-yr paddy soil and declined thereafter. However, the phosphate diester pool (including DNA) and its proportion in the topsoil increased continuously across the paddy soil chronosequence, suggesting that long-term paddy cultivation promoted labile organic P accumulation. In the deeper soil horizons with less human impacts, the temporal trends in inorganic and organic P across the paddy soil chronosequence can be fully predicted by previous established P transformation models during natural pedogenesis, although the rates of P changes differ among different sites. Our study demonstrates that long-term paddy cultivation alters the rate and trajectory of inorganic and organic P transformation in the topsoils over a millennial time scale, and highlights the importance of labile organic P activation for nutrient supply in the older paddy soils. |
| WOS关键词 | SAMPLE PREPARATION ; CHRONOSEQUENCE ; CULTIVATION ; SPECTROSCOPY ; PEDOGENESIS ; FRACTIONS ; DYNAMICS ; TOPSOIL ; MANURE ; TIMES |
| 资助项目 | National Natural Science Foundation of China[41977004] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2019052] ; Bingwei Outstanding Young Talent Project from the Institute of Geographical Sciences[2017RC203] ; State Key Laboratory of Earth Surface Processes and Resource Ecology[2022-KF-04] ; State Key Laboratory of Soil Erosion and Dryland Agriculture in Loess Plateau[A314021402-2010] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000847848000001 |
| 资助机构 | National Natural Science Foundation of China ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Bingwei Outstanding Young Talent Project from the Institute of Geographical Sciences ; State Key Laboratory of Earth Surface Processes and Resource Ecology ; State Key Laboratory of Soil Erosion and Dryland Agriculture in Loess Plateau |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/182366]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Huang, Lai -Ming |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Yellow River Delta Modern Agr Engn Lab, Beijing 100101, Peoples R China 3.Sichuan Agr Univ, Coll Resources, Chengdu 611130, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Yuan -Jun,Huang, Lai -Ming,Yuan, Da -Gang. Characteristics and controls of inorganic and organic phosphorus transformation during long-term paddy soil evolution[J]. SOIL & TILLAGE RESEARCH,2022,224:11. |
| APA | Luo, Yuan -Jun,Huang, Lai -Ming,&Yuan, Da -Gang.(2022).Characteristics and controls of inorganic and organic phosphorus transformation during long-term paddy soil evolution.SOIL & TILLAGE RESEARCH,224,11. |
| MLA | Luo, Yuan -Jun,et al."Characteristics and controls of inorganic and organic phosphorus transformation during long-term paddy soil evolution".SOIL & TILLAGE RESEARCH 224(2022):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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