Vertical distribution of soil Fe in typical riparian subzones of the Sanjiang Plain
文献类型：期刊论文
| 作者 | Chi, Guangyu; Huang, Bin; Ma, Jian; Shi, Yi; Chen, Xin |
| 刊名 | ECOLOGICAL ENGINEERING
 |
| 出版日期 | 2016-11-01 |
| 卷号 | 96页码:55-62 |
| 关键词 | Riverine Wetland Iron Organic Carbon Wetland Reclamation |
| ISSN号 | 0925-8574 |
| DOI | 10.1016/j.ecoleng.2015.11.023 |
| 英文摘要 | Sanjiang Plain, in which marshes occupy the largest area of fresh wetlands in China, has historically been considered a key Fe source of the Amur River and the Sea of Okhotsk. Since the 1950s, extensive human activity and wetland reclamation in the Sanjiang Plain has resulted in aggravating fragmentation of marshlands into different hydrological units. In the present study, soil samples were taken from typical riparian subzones of three representative marsh rivers of the Sanjiang Plain (Yalu River, Bielahong River and Naoli River), including the wetland near river (wetland-R), the wetland near cultivated land (wetland-C) and cultivated land. Soil samples from each riparian subzone were collected vertically every 20 cm from surface to a depth of 1 m and analyzed for total Fe, free Fe oxides, amorphous Fe oxides, acid-soluble Fe(II), water-soluble Fe(II), dissolved carbon (DOC), soil total organic carbon (TOC) and pH. The results showed that the soil total Fe in the 0-60 cm layers increased in the sequence of wetland-R < wetland-C < cultivated land. On the contrary, the soil active ratio of Fe, water-and acid-soluble Fe(II) in the profile decreased in the sequence of wetland-R > wetland-C > cultivated land. These implied that the ability of Fe mobilization and export in the three river basins tended to decrease away from the river. DOC was positively correlated with acid-soluble Fe(II) while negatively correlated with total Fe, indicating that DOC might promote the production of acid-soluble Fe(II) and play a key role in export of Fe from riparian zones to adjacent waters. These findings will be useful to better understand the impacts of natural wetland reclamation in the Sanjiang Plain on the regional environment. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Environmental Sciences & Ecology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000386777100007 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://210.72.129.5/handle/321005/122860]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Chen, Xin |
| 作者单位 | Chinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chi, Guangyu,Huang, Bin,Ma, Jian,et al. Vertical distribution of soil Fe in typical riparian subzones of the Sanjiang Plain[J]. ECOLOGICAL ENGINEERING,2016,96:55-62. |
| APA | Chi, Guangyu,Huang, Bin,Ma, Jian,Shi, Yi,&Chen, Xin.(2016).Vertical distribution of soil Fe in typical riparian subzones of the Sanjiang Plain.ECOLOGICAL ENGINEERING,96,55-62. |
| MLA | Chi, Guangyu,et al."Vertical distribution of soil Fe in typical riparian subzones of the Sanjiang Plain".ECOLOGICAL ENGINEERING 96(2016):55-62. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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。