Factors affecting cadmium accumulation in the soil profiles in an urban agricultural area
文献类型：期刊论文
| 作者 | Li, Qiquan2; Deng, Qian2; Fang, Hongyan2; Yu, Xuelian2; Fan, ZeMeng3,4; Du, Zhengping3; Li, Meng2; Tao, Qi2; Song, Weiping5; Zhao, Bin6 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2022-02-10 |
| 卷号 | 807页码:9 |
| 关键词 | Soil cadmium dynamics Cadmium fractions Paddy soil profile Parent material |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2021.151027 |
| 通讯作者 | Li, Qiquan(liqq@lreis.ac.cn) |
| 英文摘要 | Soil Cd pollution is a serious environmental issue associated with human activities. However, the factors determining exogenous Cd dynamics in the soil profile in a complex environment are not well understood. Based on regional observations from 169 soil profiles across the Chengdu Plain, this study explored the key factors controlling Cd accumulation in the soil profile under actual field conditions. Results showed that total soil Cd contents decreased from 0.377 to 0.196 mg kg(-1) with increasing soil depth. The effects of phosphate fertilizer rates, road density and precipitation on the difference in total soil Cd content were only observed in topsoil, while agricultural land-use type and topography had no impact. In contrast, significant differences in the total soil Cd content among different parent material types were found in the 0-20,40-60 and 60-100 cm soil depths. One sample t-tests showed that significant Cd accumulation occurred in the whole soil profile in soils formed from Q4 (Quaternary Holocene) grey alluvium, while soils formed from Q3 (Quaternary Pleistocene) old alluvium and Q4 grey-brown alluvium showed significant Cd accumulation only in the 0-40 cm soil layers. In the topsoil, acid soluble Cd accounted for the largest proportion of the total Cd in soils formed from Q4 grey alluvium, reducible Cd was the main fraction in soils formed from Q4 grey-brown alluvium, while reducible Cd and residual Cd contributed the largest proportion of the total soil Cd in soils formed from Q3 old alluvium. The above results indicated that parent material was the decisive factor determining the magnitudes and depths of exogenous Cd accumulation in the soil profile due to its impacts on the Cd fraction distributions. These findings suggested that the parent material-induced Cd fraction distributions and accumulation should be considered for effectively exploring targeted remediation strategies for Cd pollution. (C) 2021 Elsevier B.V. All rights reserved. |
| WOS关键词 | HEAVY-METALS ; CHINA ; POLLUTION ; MOBILITY ; RICE ; LEAD ; IDENTIFICATION ; PHOSPHORUS ; FRACTIONS ; REDUCTION |
| 资助项目 | National Natural Science Foundation of China[41930647] ; National Natural Science Foundation of China[41971358] ; National Natural Science Foundation of China[41421001] ; Science and Technology Plan of Sichuan Province, China[2019YJ0433] ; National Key Research and Development Program of China[2018YFD0800600] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000744133400005 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Science and Technology Plan of Sichuan Province, China ; National Key Research and Development Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/170106]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Li, Qiquan |
| 作者单位 | 1.Univ Southern Calif, Spatial Sci Inst, Los Angeles, CA 90089 USA 2.Sichuan Agr Univ, Coll Resources, 211 Huimin Rd, Chengdu 611130, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 101408, Peoples R China 5.Dept Transport Sichuan Prov, Chengdu 610041, Peoples R China 6.Sichuan Agr Univ, Coll Environm Sci, Chengdu 611130, Peoples R China 7.Meteorol Bur Sichuan Prov, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Qiquan,Deng, Qian,Fang, Hongyan,et al. Factors affecting cadmium accumulation in the soil profiles in an urban agricultural area[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,807:9. |
| APA | Li, Qiquan.,Deng, Qian.,Fang, Hongyan.,Yu, Xuelian.,Fan, ZeMeng.,...&Wilson, John P..(2022).Factors affecting cadmium accumulation in the soil profiles in an urban agricultural area.SCIENCE OF THE TOTAL ENVIRONMENT,807,9. |
| MLA | Li, Qiquan,et al."Factors affecting cadmium accumulation in the soil profiles in an urban agricultural area".SCIENCE OF THE TOTAL ENVIRONMENT 807(2022):9. |
入库方式： OAI收割
来源：地理科学与资源研究所
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