Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41467-020-15496-2 |
Drought alters the biogeochemistry of boreal stream networks | |
Gomez-Gener, Lluis1,2; Lupon, Anna3; Laudon, Hjalmar4; Sponseller, Ryan A.1 | |
2020-04-14 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2020 |
卷号 | 11期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | Sweden; Switzerland; Spain |
英文摘要 | Drought is a global phenomenon, with widespread implications for freshwater ecosystems. While droughts receive much attention at lower latitudes, their effects on northern river networks remain unstudied. We combine a reach-scale manipulation experiment, observations during the extreme 2018 drought, and historical monitoring data to examine the impact of drought in northern boreal streams. Increased water residence time during drought promoted reductions in aerobic metabolism and increased concentrations of reduced solutes in both stream and hyporheic water. Likewise, data during the 2018 drought revealed widespread hypoxic conditions and shifts towards anaerobic metabolism, especially in headwaters. Finally, long-term data confirmed that past summer droughts have led to similar metabolic alterations. Our results highlight the potential for drought to promote biogeochemical shifts that trigger poor water quality conditions in boreal streams. Given projected increases in hydrological extremes at northern latitudes, the consequences of drought for the health of running waters warrant attention. High latitude droughts are increasing, but their effects on freshwater systems are poorly understood. Here the authors investigate Sweden's most severe drought in the last century and show that these dry conditions induce hypoxia and elevated methane production from streams. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000528788400019 |
WOS关键词 | DISSOLVED ORGANIC-MATTER ; CARBON-DIOXIDE ; SURFACE WATERS ; RIPARIAN ZONES ; METABOLISM ; EMISSIONS ; DYNAMICS ; RIVER ; CO2 ; OXYGEN |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
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/249553 |
专题 | 资源环境科学 |
作者单位 | 1.Umea Univ, Dept Ecol & Environm Sci, Linnaeus Vag 6, S-90736 Umea, Sweden; 2.Ecole Polytech Fed Lausanne, Sch Architecture Civil & Environm Engn, Stream Biofilm & Ecosyst Res Lab, GR A0 412 Batiment GR, CH-1015 Lausanne, Switzerland; 3.CSIC, Ctr Adv Studies Blanes CEAB, Integrat Freshwater Ecol Grp, Blanes 17300, Girona, Spain; 4.Swedish Univ Agr Sci SLU, Dept Forest Ecol & Management, S-90183 Umea, Sweden |
推荐引用方式 GB/T 7714 | Gomez-Gener, Lluis,Lupon, Anna,Laudon, Hjalmar,et al. Drought alters the biogeochemistry of boreal stream networks[J]. NATURE COMMUNICATIONS,2020,11(1). |
APA | Gomez-Gener, Lluis,Lupon, Anna,Laudon, Hjalmar,&Sponseller, Ryan A..(2020).Drought alters the biogeochemistry of boreal stream networks.NATURE COMMUNICATIONS,11(1). |
MLA | Gomez-Gener, Lluis,et al."Drought alters the biogeochemistry of boreal stream networks".NATURE COMMUNICATIONS 11.1(2020). |
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