The influence of hyporheic upwelling fluxes on inorganic nitrogen concentrations in the pore water of the Weihe River
文献类型：期刊论文
| 作者 | Wang, Weize1; Song, Jinxi1,2; Zhang, Guotao3,4; Liu, Qi1; Guo, Weiqiang1; Tang, Bin1; Cheng, Dandong2,4; Zhang, Yan1
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| 刊名 | ECOLOGICAL ENGINEERING
 |
| 出版日期 | 2018-03-01 |
| 卷号 | 112页码:105-115 |
| 关键词 | Hyporheic zone Nitrogen Pore water The Weihe River Upwelling fluxes |
| ISSN号 | 0925-8574 |
| DOI | 10.1016/j.ecoleng.2017.12.012 |
| 英文摘要 | Hyporheic zone is an important region of nitrogen removal in river systems. Hyporheic exchange generally leads to heterogeneous redox environments, which are conducive to nitrogen transformation. This study seeks to determine the influence of hyporheic upwelling fluxes on inorganic nitrogen (NH4+, NO3-, and NO2-) concentrations in the sediment pore water of the Weihe River, China. The patterns and magnitudes of hyporheic water exchange on 12 August 2016 were derived by a one-dimensional heat transport model, and inorganic nitrogen concentrations in the pore water, surface water, and groundwater were obtained. The results indicated that hyporheic water exchange was characterized by upwelling at each point during the test period. Moreover, NH4+ dominated the hyporheic zone from 0 to 45 cm, likely due to organic nitrogen mineralization. Additionally, a non-linear relationship was observed between NH4+ concentrations and upwelling fluxes. This relationship was derived by analyzing the effect of upwelling on biogeochemical activity and nitrogen transformation. Notably, increasing upwelling fluxes less than 400 mm/d resulted in high NH4+ concentrations, whereas fluxes exceeding 400 mm/d led to low NH4+ concentrations. Overall, the variations in inorganic nitrogen associated with hyporheic water exchange are of great importance for controlling nitrogen pollution and maintaining sustainable health in river systems. |
| 语种 | 英语 |
| WOS记录号 | WOS:000424938300014 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.imde.ac.cn/handle/131551/21397]  |
| 专题 | 中国科学院水利部成都山地灾害与环境研究所 |
| 通讯作者 | Song, Jinxi |
| 作者单位 | 1.Northwest Univ Xian, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710127, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Weize,Song, Jinxi,Zhang, Guotao,et al. The influence of hyporheic upwelling fluxes on inorganic nitrogen concentrations in the pore water of the Weihe River[J]. ECOLOGICAL ENGINEERING,2018,112:105-115. |
| APA | Wang, Weize.,Song, Jinxi.,Zhang, Guotao.,Liu, Qi.,Guo, Weiqiang.,...&Zhang, Yan.(2018).The influence of hyporheic upwelling fluxes on inorganic nitrogen concentrations in the pore water of the Weihe River.ECOLOGICAL ENGINEERING,112,105-115. |
| MLA | Wang, Weize,et al."The influence of hyporheic upwelling fluxes on inorganic nitrogen concentrations in the pore water of the Weihe River".ECOLOGICAL ENGINEERING 112(2018):105-115. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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