Temporal and spatial differentiation characteristics of soil arsenic during the remediation process of Pteris vittata L. and Citrus reticulata Blanco intercropping
文献类型:期刊论文
作者 | Yan, Yunxian2,3; Yang, Jun2,3; Wan, Xiaoming2,3; Shi, Huading1; Yang, Junxing2,3; Ma, Chuang4; Lei, Mei2,3; Chen, Tongbin2,3 |
刊名 | SCIENCE OF THE TOTAL ENVIRONMENT |
出版日期 | 2022-03-15 |
卷号 | 812页码:10 |
ISSN号 | 0048-9697 |
关键词 | Intercropping mode Arsenic Rhizosphere soil Hyperaccumulator Pteris vittata L |
DOI | 10.1016/j.scitotenv.2021.152475 |
通讯作者 | Yang, Jun(yangj@igsnrr.ac.cn) |
英文摘要 | The intercropping of hyperaccumulators and fruit trees has great application prospects owing to its environmental and economic benefits. However, the variation tendency and spatial distribution characteristics of pollutants in soil are unclear. A 19-month pot positioning experiment was conducted to clarify the spatio-temporal characteristics of arsenic (As) during Pteris vittata L.-Citrus reticulata Blanco intercropping process. The results showed that: (1) In the early stage, the solubilization of soil As by P. vittata was dominant. At 3 months, the water-soluble As in P. vittata rhizosphere soil increased by 19.4-55.4% compared with the initial state. In the later stage, the As extraction from soil by P. vittata was dominant. At 19 months, the water-soluble As in P. vittata rhizosphere soil decreased by 24.6-71.2% compared with the initial state. The water-soluble As in C. reticulata rhizosphere soil in intercropping, under the role of P. vittata, reached 1.75-2.35 times that of monoculture at 7 months, and was not significantly different from that of monoculture at 19 months. (2) The spatial distribution characteristics of soil As, affected by As-hyperaccumulation of P. vittata, showed that the As variability of intercropping and P. vittata monoculture was greater than that of C. reticulata monoculture. The area of P. vittata remediating soil was approximately 15 cm horizontally around its planting point and at least 25 cm vertically. (3) P. vittata-C. reticulata intercropping did not affect the phytoremediation efficiency and effectively reduced the risk of As pollution for C. reticulata. The As concentration in C. reticulata leaves of open intercropping decreased by 39.0-64.2% (early-maturity) and 25.6-59.1% (late-maturity) compared with that of monoculture, similar to that in clean soil. This study analyzed the As migration characteristics during P. vittata- C. reticulata intercropping through time and space and provides important theoretical support for the remediation and safe use of As-contaminated farmland. |
WOS关键词 | HEAVY-METALS ; SEDUM-ALFREDII ; PLANT-GROWTH ; PHYTOREMEDIATION ; ACCUMULATION ; DISSOLUTION ; CD |
资助项目 | National Natural Science Foundation of China[42077134] ; National Key Research and Devel-opment Project of China[2018YFC1802604] |
WOS研究方向 | Environmental Sciences & Ecology |
语种 | 英语 |
出版者 | ELSEVIER |
WOS记录号 | WOS:000744155500008 |
资助机构 | National Natural Science Foundation of China ; National Key Research and Devel-opment Project of China |
源URL | [http://ir.igsnrr.ac.cn/handle/311030/169831] |
专题 | 中国科学院地理科学与资源研究所 |
通讯作者 | Yang, Jun |
作者单位 | 1.Tech Ctr Soil Agr & Rural Ecol & Environm, Minist Ecol & Environm, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 4.Zhengzhou Univ Light Ind, Henan Collaborat Innovat Ctr Environm Pollut Cont, Zhengzhou 450000, Peoples R China |
推荐引用方式 GB/T 7714 | Yan, Yunxian,Yang, Jun,Wan, Xiaoming,et al. Temporal and spatial differentiation characteristics of soil arsenic during the remediation process of Pteris vittata L. and Citrus reticulata Blanco intercropping[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,812:10. |
APA | Yan, Yunxian.,Yang, Jun.,Wan, Xiaoming.,Shi, Huading.,Yang, Junxing.,...&Chen, Tongbin.(2022).Temporal and spatial differentiation characteristics of soil arsenic during the remediation process of Pteris vittata L. and Citrus reticulata Blanco intercropping.SCIENCE OF THE TOTAL ENVIRONMENT,812,10. |
MLA | Yan, Yunxian,et al."Temporal and spatial differentiation characteristics of soil arsenic during the remediation process of Pteris vittata L. and Citrus reticulata Blanco intercropping".SCIENCE OF THE TOTAL ENVIRONMENT 812(2022):10. |
入库方式: OAI收割
来源:地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。