Nitrogen deposition and phosphorus addition alter mobility of trace elements in subtropical forests in China
文献类型：期刊论文
| 作者 | Wu, Anqi2,4; Hu, Xiaofei3; Wang, Fangchao3; Guo, Chunlan2,4; Wang, Huimin1 ; Chen, Fu-Sheng2,4
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2021-08-10 |
| 卷号 | 781页码:13 |
| 关键词 | Nitrogen deposition Phosphorus addition Trace element mobility Root capture Transport process Leaf and twig resorption |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2021.146778 |
| 通讯作者 | Chen, Fu-Sheng(chenfusheng@jxau.edu.cn) |
| 英文摘要 | Trace elements are important in sustaining the functioning of forest ecosystems. However, knowing how nitrogen (N) deposition and phosphorus (P) addition alter the mobility of trace elements, and how trees equilibrate root capture and leaf resorption of trace elements remains undear. We measured concentrations of five elements in rhizospheric soils, fine roots, twigs, and leaves in Chinese fir plantations fertilized with P (5 g P m(-2) a(-1)) and/or N (5 and 10 gNm(-2) a(-1)) over 5 years in subtropical China and calculated these mobility factors of four trace elements and Mg from soils to roots and from roots to twigs and leaves. Results showed that N addition increased the capacity of roots to capture Mg and to twigs re-adsorb Fe. Phosphorus regulated the employment of a Mn acquisition strategy under N deposition. Nitrogen addition increased the capacity of roots to capture and the efficiency of leaves to re-adsorb Mn without P addition while only increased the Mn capturing capacity with P addition. The Mg, Fe, and Mn were more sensitive than Cu and Zn to N deposition and P add ilion.The capture-resorption tradeoff depended more on element types than N and P supplies. In addition, the tradeoff between capture and resorption could be reflected by the transport capacity since transport capacities of Mg, Fe, Mn, and Zn were positively correlated with their corresponding capture capacities or resorption efficiencies. Furthermore, structural equation modeling showed the element mobility tended to be dominated by P rather than N. These findings suggest subtropical forests would adapt to atmospheric N deposition and soil P limitation by adjusting the tradeoff between capture and resorption strategies. The establishment of trace element mobility and tradeoff patterns provides insights into trace element cycling under human-driven nutrient imbalance scenarios. (C) 2021 Elsevier B.V. All rights reserved. |
| WOS关键词 | NUTRIENT-ACQUISITION STRATEGIES ; SOIL MICROBIAL COMMUNITIES ; RESORPTION EFFICIENCIES ; ATMOSPHERIC NITROGEN ; ABSORPTIVE ROOTS ; PLANT ; RESPONSES ; LEAVES ; GROWTH ; LEAF |
| 资助项目 | National Natural Science Foundation of China[32060263] ; National Natural Science Foundation of China[31870427] ; National Natural Science Foundation of China[31730014] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000655619900003 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/163907]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Chen, Fu-Sheng |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Qianyanzhou Ecol Stn, Beijing 100101, Peoples R China 2.Jiangxi Agr Univ, Coll Forestry, Jiangxi Prov Key Lab Silviculture, Nanchang 330045, Jiangxi, Peoples R China 3.Nanchang Univ, Sch Management, Nanchang 330038, Jiangxi, Peoples R China 4.Jiangxi Agr Univ, Key Lab Natl Forestry & Grassland Adm Forest Ecos, Nanchang 330045, Jiangxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Anqi,Hu, Xiaofei,Wang, Fangchao,et al. Nitrogen deposition and phosphorus addition alter mobility of trace elements in subtropical forests in China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,781:13. |
| APA | Wu, Anqi,Hu, Xiaofei,Wang, Fangchao,Guo, Chunlan,Wang, Huimin,&Chen, Fu-Sheng.(2021).Nitrogen deposition and phosphorus addition alter mobility of trace elements in subtropical forests in China.SCIENCE OF THE TOTAL ENVIRONMENT,781,13. |
| MLA | Wu, Anqi,et al."Nitrogen deposition and phosphorus addition alter mobility of trace elements in subtropical forests in China".SCIENCE OF THE TOTAL ENVIRONMENT 781(2021):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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