Response of coastal marine eco-environment to river fluxes into the sea: A case study of the Huanghe (Yellow) River mouth and adjacent waters | |
Fan, Hui1,2; Huang, Haijun2 | |
刊名 | MARINE ENVIRONMENTAL RESEARCH |
2008-06-01 | |
卷号 | 65期号:5页码:378-387 |
关键词 | Huanghe (Yellow) River Estuary Dissolved Inorganic Matter Marine Ecosystem River Flux Coastal Water |
ISSN号 | 0141-1136 |
DOI | 10.1016/j.marenvres.2008.01.003 |
文献子类 | Article |
英文摘要 | The impact of the Huanghe (Yellow) River outflows on its estuary was investigated with river gauging and shipboard hydrographic observations. The river flux has been decreasing dramatically; the discharges of water and sediment in the 1990s dropped to 27.4% and 31.9% of those in the 1950s, respectively, resulting in frequent and lengthy events of downstream channel dry-up since the 1970s. There were accumulatively 897 zero-flow days during the 1990s in the river course below the Lijin Hydrological Station, 100 km upstream from the river mouth, which is 82.4% of that in 1972. As freshwater input decreases, river-borne nutrients to the estuarine increased significantly. Concentration of dissolved inorganic nitrogen (DIN) in the 1990s was four times of that in 1950s. Changes in amount and content of the riverine inputs have greatly affected the estuarine ecosystem. Over the past several decades, sea surface temperature and salinity in the estuary and its adjacent waters increased and their distribution pattern altered in response to the reduction of freshwater inflow. The distribution of and seasonal succession in nutrient concentrations in the surface layer have also changed with a shift of river outlet and the decrease in riverine nutrient loads. Furthermore, deterioration of estuarine ecosystem by less river input has decreased primary productivity in the deltaic region waters, and in turn depressed the fishery. (C) 2008 Published by Elsevier Ltd.; The impact of the Huanghe (Yellow) River outflows on its estuary was investigated with river gauging and shipboard hydrographic observations. The river flux has been decreasing dramatically; the discharges of water and sediment in the 1990s dropped to 27.4% and 31.9% of those in the 1950s, respectively, resulting in frequent and lengthy events of downstream channel dry-up since the 1970s. There were accumulatively 897 zero-flow days during the 1990s in the river course below the Lijin Hydrological Station, 100 km upstream from the river mouth, which is 82.4% of that in 1972. As freshwater input decreases, river-borne nutrients to the estuarine increased significantly. Concentration of dissolved inorganic nitrogen (DIN) in the 1990s was four times of that in 1950s. Changes in amount and content of the riverine inputs have greatly affected the estuarine ecosystem. Over the past several decades, sea surface temperature and salinity in the estuary and its adjacent waters increased and their distribution pattern altered in response to the reduction of freshwater inflow. The distribution of and seasonal succession in nutrient concentrations in the surface layer have also changed with a shift of river outlet and the decrease in riverine nutrient loads. Furthermore, deterioration of estuarine ecosystem by less river input has decreased primary productivity in the deltaic region waters, and in turn depressed the fishery. (C) 2008 Published by Elsevier Ltd. |
学科主题 | Environmental Sciences ; Marine & Freshwater Biology ; Toxicology |
URL标识 | 查看原文 |
语种 | 英语 |
WOS记录号 | WOS:000255451000002 |
公开日期 | 2010-12-24 |
内容类型 | 期刊论文 |
源URL | [http://ir.qdio.ac.cn/handle/337002/5035] |
专题 | 海洋研究所_海洋地质与环境重点实验室 |
作者单位 | 1.Shandong Acad Sci, Inst Strategy Dev Sci & Technol, Jinan 250014, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China |
推荐引用方式 GB/T 7714 | Fan, Hui,Huang, Haijun. Response of coastal marine eco-environment to river fluxes into the sea: A case study of the Huanghe (Yellow) River mouth and adjacent waters[J]. MARINE ENVIRONMENTAL RESEARCH,2008,65(5):378-387. |
APA | Fan, Hui,&Huang, Haijun.(2008).Response of coastal marine eco-environment to river fluxes into the sea: A case study of the Huanghe (Yellow) River mouth and adjacent waters.MARINE ENVIRONMENTAL RESEARCH,65(5),378-387. |
MLA | Fan, Hui,et al."Response of coastal marine eco-environment to river fluxes into the sea: A case study of the Huanghe (Yellow) River mouth and adjacent waters".MARINE ENVIRONMENTAL RESEARCH 65.5(2008):378-387. |
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