Dam Effect on Soil Nutrients and Potentially Toxic Metals in a Reservoir Riparian Zone
文献类型：期刊论文
| 作者 | Zhang, Aiying1; Cornwell, Will3; Li, Zhaojia2; Xiong, Gaoming; Yang, Dan1; Xie, Zongqiang |
| 刊名 | CLEAN-SOIL AIR WATER
 |
| 出版日期 | 2019 |
| 卷号 | 47期号:1 |
| ISSN号 | 1863-0650 |
| 关键词 | geoaccumulation index nitrogen potential ecological risk potentially toxic metals riparian zone |
| DOI | 10.1002/clen.201700497 |
| 文献子类 | Article |
| 英文摘要 | The unique hydrological regime of Three Gorges Dam (TGD) has brought enormous challenges to the riparian zone (RRZ), which plays an important role in regulating sediment and nutrient transport into the Yangtze River. The soil in a RRZ is one of the key factors that affect the water quality. After 4 years of winter-flooding, the concentration of soil nutrients and potentially toxic metals between the flooded reservoir RRZ and adjacent non-flooded upland (Upland) are examined. There are two main results: First, soil organic carbon and soil available potassium concentration were significantly lower in RRZ than in Upland. Soil total nitrogen (TN) concentration showed the same trend, but with no significance. Soil available phosphorus concentration is significantly higher in RRZ. Second, the concentrations of all the tested potentially toxic metals (Cd, Cr, Cu, Pb, Zn), their geoaccumulation index (I-geo) values and potential ecological risk index (E-i) values are significantly higher in RRZ than in Upland. Cd had the highest I-geo and E-i values in RRZ. The present results indicated that the flood-dry-flood cycle caused by TGD has changed the soil nutrient concentrations and increased the potentially toxic metal concentrations. There is a cross-contamination risk of the soil in RRZ, perhaps related to fertilization. As the last protective barrier for the Yangtze River, soil potentially toxic metals pollution control should deserve a considerable attention in the RRZ formed by TGD. |
| 学科主题 | Green & Sustainable Science & Technology ; Environmental Sciences ; Marine & Freshwater Biology ; Water Resources |
| 电子版国际标准刊号 | 1863-0669 |
| 出版地 | HOBOKEN |
| WOS关键词 | 3 GORGES RESERVOIR ; LEVEL-FLUCTUATION ZONE ; NITRATE REMOVAL ; WETLAND SOILS ; HEAVY-METALS ; WATER ; SEDIMENTS ; POLLUTION ; CHINA ; CONTAMINATION |
| WOS研究方向 | Science & Technology - Other Topics ; Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:000455212400003 |
| 资助机构 | Chinese Academy of ScienceChinese Academy of Sciences [KZCX2-XB3-09] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/19582]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Guangdong, Peoples R China 2.Univ New South Wales, Sch Biol Earth & Environm Sci, Ecol & Evolut Res Ctr, Sydney, NSW 2052, Australia 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun Xiangshan, Beijing 100093, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Aiying,Cornwell, Will,Li, Zhaojia,et al. Dam Effect on Soil Nutrients and Potentially Toxic Metals in a Reservoir Riparian Zone[J]. CLEAN-SOIL AIR WATER,2019,47(1). |
| APA | Zhang, Aiying,Cornwell, Will,Li, Zhaojia,Xiong, Gaoming,Yang, Dan,&Xie, Zongqiang.(2019).Dam Effect on Soil Nutrients and Potentially Toxic Metals in a Reservoir Riparian Zone.CLEAN-SOIL AIR WATER,47(1). |
| MLA | Zhang, Aiying,et al."Dam Effect on Soil Nutrients and Potentially Toxic Metals in a Reservoir Riparian Zone".CLEAN-SOIL AIR WATER 47.1(2019). |
入库方式： OAI收割
来源：植物研究所
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