中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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, Yunxian1,2; Yang, Jun1,2; Wan, Xiaoming1,2; Shi, Huading3; Yang, Junxing1,2; Ma, Chuang4; Lei, Mei1,2; Chen, Tongbin1,2
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
DOI10.1016/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.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
3.Tech Ctr Soil Agr & Rural Ecol & Environm, Minist Ecol & Environm, Beijing 100012, 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

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