Zobrazeno 1 - 10
of 28
pro vyhledávání: '"J. H. Fleckenstein"'
Publikováno v:
Hydrology and Earth System Sciences, Vol 27, Pp 2989-3004 (2023)
Transit time distributions (TTDs) of streamflow are useful descriptors for understanding flow and solute transport in catchments. Catchment-scale TTDs can be modeled using tracer data (e.g. oxygen isotopes, such as δ18O) in inflow and outflows by em
Externí odkaz:
https://doaj.org/article/2ddd70b9c2fa492398352768a79e43f5
Publikováno v:
Hydrology and Earth System Sciences, Vol 27, Pp 303-318 (2023)
In 2018–2019, Central Europe experienced an unprecedented 2-year drought with severe impacts on society and ecosystems. In this study, we analyzed the impact of this drought on water quality by comparing long-term (1997–2017) nitrate export with
Externí odkaz:
https://doaj.org/article/672f6993be124152aee7d7775492c08a
Autor:
T. Hermans, P. Goderniaux, D. Jougnot, J. H. Fleckenstein, P. Brunner, F. Nguyen, N. Linde, J. A. Huisman, O. Bour, J. Lopez Alvis, R. Hoffmann, A. Palacios, A.-K. Cooke, Á. Pardo-Álvarez, L. Blazevic, B. Pouladi, P. Haruzi, A. Fernandez Visentini, G. E. H. Nogueira, J. Tirado-Conde, M. C. Looms, M. Kenshilikova, P. Davy, T. Le Borgne
Publikováno v:
Hydrology and Earth System Sciences, Vol 27, Pp 255-287 (2023)
Essentially all hydrogeological processes are strongly influenced by the subsurface spatial heterogeneity and the temporal variation of environmental conditions, hydraulic properties, and solute concentrations. This spatial and temporal variability g
Externí odkaz:
https://doaj.org/article/cf1c5f49469b466a9d67be56c7219c8e
Publikováno v:
Hydrology and Earth System Sciences, Vol 26, Pp 5051-5068 (2022)
Excess export of nitrate to streams affects ecosystem structure and functions and has been an environmental issue attracting worldwide attention. The dynamics of catchment-scale solute export from diffuse nitrogen sources can be explained by the chan
Externí odkaz:
https://doaj.org/article/dca324d0fe1d481b8392573878f7544d
Publikováno v:
Hydrology and Earth System Sciences, Vol 26, Pp 1883-1905 (2022)
Riparian zones are known to modulate water quality in stream corridors. They can act as buffers for groundwater-borne solutes before they enter the stream at harmful, high concentrations or facilitate solute turnover and attenuation in zones where st
Externí odkaz:
https://doaj.org/article/fad850de71a54327ac4cf644a47c9769
Publikováno v:
Hydrology and Earth System Sciences, Vol 25, Pp 6437-6463 (2021)
Nitrate (NO3-) excess in rivers harms aquatic ecosystems and can induce detrimental algae growths in coastal areas. Riverine NO3- uptake is a crucial element of the catchment-scale nitrogen balance and can be measured at small spatiotemporal scales,
Externí odkaz:
https://doaj.org/article/e66493a5babb4b90b7d6d54704809c8e
Autor:
B. J. Werner, O. J. Lechtenfeld, A. Musolff, G. H. de Rooij, J. Yang, R. Gründling, U. Werban, J. H. Fleckenstein
Publikováno v:
Hydrology and Earth System Sciences, Vol 25, Pp 6067-6086 (2021)
Export of dissolved organic carbon (DOC) from riparian zones (RZs) is an important component of temperate catchment carbon budgets, but export mechanisms are still poorly understood. Here we show that DOC export is predominantly controlled by the mic
Externí odkaz:
https://doaj.org/article/59cc6332c3c94f118f51616a86faf466
Publikováno v:
Hydrology and Earth System Sciences, Vol 25, Pp 5133-5151 (2021)
Understanding the controls on event-driven dissolved organic carbon (DOC) export is crucial as DOC is an important link between the terrestrial and the aquatic carbon cycles. We hypothesized that topography is a key driver of DOC export in headwater
Externí odkaz:
https://doaj.org/article/b1c546fbe1e24103a4e7c1d6a0d32888
Autor:
R. Kumar, F. Heße, P. S. C. Rao, A. Musolff, J. W. Jawitz, F. Sarrazin, L. Samaniego, J. H. Fleckenstein, O. Rakovec, S. Thober, S. Attinger
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-10 (2020)
Excess fertilizer use causes subsurface contamination. Here, the authors conduct an assessment of water quality vulnerability across Europe, finding that 75% of agricultural regions are susceptible to nitrate contamination for least one-third of the
Externí odkaz:
https://doaj.org/article/b818ad8d408945abbd52f4488e7bd5ea
Publikováno v:
Hydrology and Earth System Sciences, Vol 24, Pp 2895-2920 (2020)
Transit time distributions (TTDs) integrate information on timing, amount, storage, mixing and flow paths of water and thus characterize hydrologic and hydrochemical catchment response unlike any other descriptor. Here, we simulate the shape of TTDs
Externí odkaz:
https://doaj.org/article/d8ef7301c82448d6aabf1f11c493e37a