Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR026695 |
Depth of solute generation is a dominant control on concentration‐discharge relations | |
M. Botter; L. Li; J. Hartmann; P. Burlando; S. Fatichi | |
2020-08-03 | |
发表期刊 | Water Resources Research
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出版年 | 2020 |
英文摘要 | Solutes in rivers often come from multiple sources, notably precipitation (above) and generation from the subsurface (below). The question of which source is more influential in shaping the dynamics of solute concentration cannot be easily addressed due to the general lack of input data. An analysis of solute concentrations and their dependence on discharge across 585 catchments in 9 countries leads us to hypothesize that both the timing and the vertical distribution of the solute generation are important drivers of solute export dynamics at the catchment scale. We test this hypothesis running synthetic experiments with a tracer‐aided distributed hydrological model. The results reveal that the depth of solute generation is the most important control of the concentration‐discharge (C‐Q) relation for a number of solutes. Such relation shows that C‐Q patterns of solute export vary from dilution (Ca2+, Mg2+, K+, Na+, Cl‐) to weakly enriching (DOC). The timing of the input imposes a signature on temporal dynamics, most evident for nutrients, and adds uncertainty in the exponent of the C‐Q relation. |
领域 | 资源环境 |
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/287748 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | M. Botter,L. Li,J. Hartmann,等. Depth of solute generation is a dominant control on concentration‐discharge relations[J]. Water Resources Research,2020. |
APA | M. Botter,L. Li,J. Hartmann,P. Burlando,&S. Fatichi.(2020).Depth of solute generation is a dominant control on concentration‐discharge relations.Water Resources Research. |
MLA | M. Botter,et al."Depth of solute generation is a dominant control on concentration‐discharge relations".Water Resources Research (2020). |
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