Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13498 |
Unexpected release of phosphate and organic carbon to streams linked to declining nitrogen depositions | |
Musolff, Andreas1; Selle, Benny2,6; Bttner, Olaf3; Opitz, Michael4; Tittel, Joerg5 | |
2017-05-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2017 |
卷号 | 23期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | Reductions in emissions have successfully led to a regional decline in atmospheric nitrogen depositions over the past 20 years. By analyzing long-term data from 110 mountainous streams draining into German drinking water reservoirs, nitrate concentrations indeed declined in the majority of catchments. Furthermore, our meta-analysis indicates that the declining nitrate levels are linked to the release of dissolved iron to streams likely due to a reductive dissolution of iron(III) minerals in riparian wetland soils. This dissolution process mobilized adsorbed compounds, such as phosphate, dissolved organic carbon and arsenic, resulting in concentration increases in the streams and higher inputs to receiving drinking water reservoirs. Reductive mobilization was most significant in catchments with stream nitrate concentrations < 6 mg L-1. Here, nitrate, as a competing electron acceptor, was too low in concentration to inhibit microbial iron(III) reduction. Consequently, observed trends were strongest in forested catchments, where nitrate concentrations were unaffected by agricultural and urban sources and which were therefore sensitive to reductions of atmospheric nitrogen depositions. We conclude that there is strong evidence that the decline in nitrogen deposition toward pre-industrial conditions lowers the redox buffer in riparian soils, destabilizing formerly fixed problematic compounds, and results in serious implications for water quality. |
英文关键词 | atmospheric deposition carbon cycle nitrogen biogeochemistry organic matter riparian zone streamwater chemistry |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000397800600012 |
WOS关键词 | INCREASING IRON CONCENTRATIONS ; SURFACE WATERS ; ANTHROPOGENIC NITROGEN ; ATMOSPHERIC DEPOSITION ; HUMIC SUBSTANCES ; DRINKING-WATER ; FRESH-WATER ; LAKE-WATER ; NITRATE ; PHOSPHORUS |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/17498 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.UFZ Helmholtz Ctr Environm Res, Dept Hydrogeol, Permoserstr 15, D-04318 Leipzig, Germany; 2.Univ Potsdam, Inst Earth & Environm Sci, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany; 3.UFZ Helmholtz Ctr Environm Res, Dept Aquat Ecosyst Anal, Bruckstr 3a, D-39114 Magdeburg, Germany; 4.IDUS Biol Analyst Umweltlabor GmbH, Radeberger Str 1, D-01458 Ottendorf Okrilla, Germany; 5.UFZ Helmholtz Ctr Environm Res, Dept Lake Res, Bruckstr 3a, D-39114 Magdeburg, Germany; 6.Beuth Univ Appl Sci, Dept Civil Engn & Geoinformat, Luxemburger Str 10, D-13353 Berlin, Germany |
推荐引用方式 GB/T 7714 | Musolff, Andreas,Selle, Benny,Bttner, Olaf,et al. Unexpected release of phosphate and organic carbon to streams linked to declining nitrogen depositions[J]. GLOBAL CHANGE BIOLOGY,2017,23(5). |
APA | Musolff, Andreas,Selle, Benny,Bttner, Olaf,Opitz, Michael,&Tittel, Joerg.(2017).Unexpected release of phosphate and organic carbon to streams linked to declining nitrogen depositions.GLOBAL CHANGE BIOLOGY,23(5). |
MLA | Musolff, Andreas,et al."Unexpected release of phosphate and organic carbon to streams linked to declining nitrogen depositions".GLOBAL CHANGE BIOLOGY 23.5(2017). |
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