Pollution levels and toxicity risks of heavy metals in different reed wetland soils following channel diversion in the Yellow River Delta
文献类型：期刊论文
| 作者 | Wu, Qiutang1,2; Bian, Fuhua1; Eller, Franziska3; Wu, Mengdi2,4; Han, Guangxuan2,5 ; Yu, Junbao6; Guan, Bo2,6
|
| 刊名 | WETLANDS
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 42期号:4页码:13 |
| 关键词 | Coastal wetlands River changes Reed community Soil elements Spatial distribution Pollution index |
| ISSN号 | 0277-5212 |
| DOI | 10.1007/s13157-022-01547-5 |
| 通讯作者 | Guan, Bo(guanbo_99@hotmail.com) |
| 英文摘要 | The spatial distribution characteristics of soil elements in estuarine wetlands, which are important indicators for the health of estuaries, are affected by the dynamic changes of river flow paths. To reveal the differences of the spatial distribution characteristics of soil elements following channel diversion, we selected three typical reed (Phragmites australis) communities in the Yellow River Delta: the abandoned Yellow River course (OC): the reed community in the riparian zone of the old course of the Yellow River, which was diverted in 1996; the new Yellow River course (NC): the reed community on the current river bank; the intertidal area (TC): reed communities on tidal flats not affected by the Yellow River but frequently by tides. The soil properties and spatial distribution characteristics of 17 soil elements were analyzed, and the Geoaccumulation Index (I-geo), Enrichment Factor (EF), Toxin Units (TUs) and New Toxicity Index (TRI) were used to evaluate the ecotoxicity of heavy metals. The mean pH value followed the order TC site (8.05) > NC site (7.97) > OC site (7.87). The electrical conductivity at the NC site (4.10 mS cm(-1)) was significantly lower than at the OC site (6.46 mS cm(-1)) and TC site (6.86 mS cm(-1)) (p < 0.05). The mean concentrations of P, Mo, Fe, Zn, Cu, Cr, Ni and As in the surface soil (0-20 cm) at the NC site were lower than those at the OC site and TC site (p < 0.05). The results of vertical distribution of elements showed that the concentrations of most heavy metals at the OC and TC site decreased along the depth of the soil layers and the highest values appeared in the upper soil layers. While the NC site was different, the highest heavy metal concentrations were found in the lower soil layers. The values of I-geo indicated that Ni, As and Mo at the OC and TC site, and As and Hg at the NC site showed high toxicity risks. The EF values for Cu, Ni, As, Mo and Hg of all three sites exceeded 1.5, implying that these elements might come mostly from anthropogenic sources. In addition, Ni, As and Cr exhibited higher contribution ratios based on TRI values and sigma TUs. Meantime, the sigma TUs and TRI values indicated that the TC site had the highest, and the NC site had the lowest toxicity risk. The channel diversion increased the risk of soil pollution at the OC site. It is necessary to carry out long-term monitoring and control measures to avoid potential ecological damage. |
| WOS关键词 | FRESH-WATER ; SURFACE SEDIMENTS ; YANGTZE-RIVER ; CONTAMINATION ; DISTRIBUTIONS ; SPECIATION ; DYNAMICS ; SOUTHERN ; REGION ; SEA |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000773919400001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.yic.ac.cn/handle/133337/31363]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 烟台海岸带研究所_近岸生态与环境实验室 |
| 通讯作者 | Guan, Bo |
| 作者单位 | 1.Yantai Univ, Coll Life Sci, Yantai 264005, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Key Lab Coastal Environm Proc,YICCAS,CAS, Yantai 264003, Shandong, Peoples R China 3.Aarhus Univ, Dept Biol, Ole Worms Alle 1, DK-8000 Aarhus C, Denmark 4.Yantai Univ, Sch Environm & Mat Engn, Yantai 264005, Peoples R China 5.Chinese Acad Sci, Yellow River Delta Field Observat & Res Stn Coast, Dongying, Peoples R China 6.Ludong Univ, Inst Adv Study Coastal Ecol, Yantai 264025, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Qiutang,Bian, Fuhua,Eller, Franziska,et al. Pollution levels and toxicity risks of heavy metals in different reed wetland soils following channel diversion in the Yellow River Delta[J]. WETLANDS,2022,42(4):13. |
| APA | Wu, Qiutang.,Bian, Fuhua.,Eller, Franziska.,Wu, Mengdi.,Han, Guangxuan.,...&Guan, Bo.(2022).Pollution levels and toxicity risks of heavy metals in different reed wetland soils following channel diversion in the Yellow River Delta.WETLANDS,42(4),13. |
| MLA | Wu, Qiutang,et al."Pollution levels and toxicity risks of heavy metals in different reed wetland soils following channel diversion in the Yellow River Delta".WETLANDS 42.4(2022):13. |
入库方式： OAI收割
来源：烟台海岸带研究所
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。