Soil phosphorus fraction and availability dynamics along a 2-million-year soil chronosequence in northern Hainan Island, China
文献类型：期刊论文
| 作者 | Luo, Yuan-Jun3,4; Yuan, Da-Gang3; Huang, Lai-Ming1,2,4 |
| 刊名 | GEODERMA
 |
| 出版日期 | 2024-08-01 |
| 卷号 | 448页码:116957 |
| 关键词 | Tropical soil Soil chronosequence Pedogenesis Phosphorus fraction Hainan Island |
| DOI | 10.1016/j.geoderma.2024.116957 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The low phosphorus (P) content and availability in highly weathered tropical soils may limit ecosystem service and function. However, information on P fraction dynamics and availability during tropical soil development is scarce. Understanding P transformations and their impacts on P availability at various stages of tropical soil evolution is crucial for effective nutrient management strategies. In this study, a soil chronosequence (ranging from 0.09to 2.30 million years) was combined with the sequential P extraction to assess temporal changes in P fractions with soil age in northern Hainan Island, China. Results showed that total P (TP) content increased initially (<0.146-million-year), declined at the 0.64- million-year site, and then rebounded (>1.12-million-year) as soil age increased. Sequential P extraction revealed that the stable P pools, including concentrated HCl extracted P and residual-P, were the dominant P fractions, mirroring the temporal trend of TP. The labile NaHCO3-P-i concentration, which reflects soil P availability, ranged from 2.29 to 5.63 mg kg(-1). Despite the low labile P content, it is sufficient to meet plant P requirements, even in the oldest soil. Structural equation modeling indicated that moderately labile NaOH-P-i and the stable P pools significantly influenced soil P availability, together explained 51.0 % of the variation in labile P. This study elucidates the pattern of P transformation during tropical pedogenesis over a 2.30-million-year timescale, highlighting the substantial contribution of stable P pools to P supply in tropical soils with low labile P content. |
| WOS关键词 | COASTAL DUNE CHRONOSEQUENCE ; PEDOGENIC THRESHOLDS ; PADDY CULTIVATION ; LIMITATION ; FOREST ; TRANSFORMATIONS ; BASALT ; APATITE ; FATE |
| WOS研究方向 | Agriculture |
| WOS记录号 | WOS:001287388600001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/206914]  |
| 专题 | 黄河三角洲现代农业工程实验室_外文论文 |
| 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, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 3.Sichuan Agr Univ, Coll Resources, Chengdu 611130, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Yellow River Delta Modern Agr Engn Lab, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Yuan-Jun,Yuan, Da-Gang,Huang, Lai-Ming. Soil phosphorus fraction and availability dynamics along a 2-million-year soil chronosequence in northern Hainan Island, China[J]. GEODERMA,2024,448:116957. |
| APA | Luo, Yuan-Jun,Yuan, Da-Gang,&Huang, Lai-Ming.(2024).Soil phosphorus fraction and availability dynamics along a 2-million-year soil chronosequence in northern Hainan Island, China.GEODERMA,448,116957. |
| MLA | Luo, Yuan-Jun,et al."Soil phosphorus fraction and availability dynamics along a 2-million-year soil chronosequence in northern Hainan Island, China".GEODERMA 448(2024):116957. |
入库方式： OAI收割
来源：地理科学与资源研究所
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