FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4226138001> ?p ?o ?g. }

• W4226138001 endingPage "6463" @default.
• W4226138001 startingPage "6437" @default.
• W4226138001 abstract "Abstract. 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, while at the scale of entire river networks, uptake measurements are rarely available. Concurrent, low-frequency NO3- concentration and streamflow (Q) observations at a basin outlet, however, are commonly monitored and can be analyzed in terms of concentration discharge (C–Q) relationships. Previous studies suggest that steeper positive log (C)–log (Q) slopes under low flow conditions (than under high flows) are linked to biological NO3- uptake, creating a bent rather than linear log (C)–log (Q) relationship. Here we explore if network-scale NO3- uptake creates bent log (C)–log (Q) relationships and when in turn uptake can be quantified from observed low-frequency C–Q data. To this end we apply a parsimonious mass-balance-based river network uptake model in 13 mesoscale German catchments (21–1450 km2) and explore the linkages between log (C)–log (Q) bending and different model parameter combinations. The modeling results show that uptake and transport in the river network can create bent log (C)–log (Q) relationships at the basin outlet from log–log linear C–Q relationships describing the NO3- land-to-stream transfer. We find that within the chosen parameter range the bending is mainly shaped by geomorphological parameters that control the channel reactive surface area rather than by the biological uptake velocity itself. Further we show that in this exploratory modeling environment, bending is positively correlated to percentage of NO3- load removed in the network (Lr.perc) but that network-wide flow velocities should be taken into account when interpreting log (C)–log (Q) bending. Classification trees, finally, can successfully predict classes of low (∼4 %), intermediate (∼32 %) and high (∼68 %) Lr.perc using information on water velocity and log (C)–log (Q) bending. These results can help to identify stream networks that efficiently attenuate NO3- loads based on low-frequency NO3- and Q observations and generally show the importance of the channel geomorphology on the emerging log (C)–log (Q) bending at network scales." @default.
• W4226138001 created "2022-05-05" @default.
• W4226138001 creator A5015563464 @default.
• W4226138001 creator A5021297044 @default.
• W4226138001 creator A5031533790 @default.
• W4226138001 creator A5041667630 @default.
• W4226138001 creator A5086232497 @default.
• W4226138001 date "2021-12-20" @default.
• W4226138001 modified "2023-10-16" @default.
• W4226138001 title "Bending of the concentration discharge relationship can inform about in-stream nitrate removal" @default.
• W4226138001 cites W1535712589 @default.
• W4226138001 cites W1556713122 @default.
• W4226138001 cites W1562971193 @default.
• W4226138001 cites W1566683466 @default.
• W4226138001 cites W1587869157 @default.
• W4226138001 cites W1599444944 @default.
• W4226138001 cites W1826913668 @default.
• W4226138001 cites W1929695283 @default.
• W4226138001 cites W1950680159 @default.
• W4226138001 cites W1952040787 @default.
• W4226138001 cites W1963119148 @default.
• W4226138001 cites W1967794697 @default.
• W4226138001 cites W1987288036 @default.
• W4226138001 cites W1987490818 @default.
• W4226138001 cites W1993152985 @default.
• W4226138001 cites W1993284672 @default.
• W4226138001 cites W2003912780 @default.
• W4226138001 cites W2015102418 @default.
• W4226138001 cites W2028469596 @default.
• W4226138001 cites W2042162941 @default.
• W4226138001 cites W2049443634 @default.
• W4226138001 cites W2057707765 @default.
• W4226138001 cites W2058442609 @default.
• W4226138001 cites W2058613992 @default.
• W4226138001 cites W2068570552 @default.
• W4226138001 cites W2068960764 @default.
• W4226138001 cites W2073203800 @default.
• W4226138001 cites W2073344030 @default.
• W4226138001 cites W2077112237 @default.
• W4226138001 cites W2077326648 @default.
• W4226138001 cites W2077541573 @default.
• W4226138001 cites W2083021869 @default.
• W4226138001 cites W2095222099 @default.
• W4226138001 cites W2095674268 @default.
• W4226138001 cites W2109347336 @default.
• W4226138001 cites W2112863519 @default.
• W4226138001 cites W2116582828 @default.
• W4226138001 cites W2125579803 @default.
• W4226138001 cites W2125746681 @default.
• W4226138001 cites W2125873776 @default.
• W4226138001 cites W2130361057 @default.
• W4226138001 cites W2131407861 @default.
• W4226138001 cites W2135003112 @default.
• W4226138001 cites W2135241297 @default.
• W4226138001 cites W2138330637 @default.
• W4226138001 cites W2139183616 @default.
• W4226138001 cites W2140110772 @default.
• W4226138001 cites W2141895127 @default.
• W4226138001 cites W2193240865 @default.
• W4226138001 cites W2276915090 @default.
• W4226138001 cites W2280341058 @default.
• W4226138001 cites W2379646125 @default.
• W4226138001 cites W2417001919 @default.
• W4226138001 cites W2466554424 @default.
• W4226138001 cites W2519076246 @default.
• W4226138001 cites W2560867737 @default.
• W4226138001 cites W2563524126 @default.
• W4226138001 cites W2576589933 @default.
• W4226138001 cites W2611939070 @default.
• W4226138001 cites W2612950423 @default.
• W4226138001 cites W2749318049 @default.
• W4226138001 cites W2757962854 @default.
• W4226138001 cites W2762047210 @default.
• W4226138001 cites W2765936013 @default.
• W4226138001 cites W2766267908 @default.
• W4226138001 cites W2776433344 @default.
• W4226138001 cites W2777396291 @default.
• W4226138001 cites W2788283854 @default.
• W4226138001 cites W2790652657 @default.
• W4226138001 cites W2791590842 @default.
• W4226138001 cites W2804595940 @default.
• W4226138001 cites W2885889990 @default.
• W4226138001 cites W2889211507 @default.
• W4226138001 cites W2896097743 @default.
• W4226138001 cites W2899478350 @default.
• W4226138001 cites W2930810649 @default.
• W4226138001 cites W2947131528 @default.
• W4226138001 cites W2960207024 @default.
• W4226138001 cites W2980323394 @default.
• W4226138001 cites W3012183095 @default.
• W4226138001 cites W3037645259 @default.
• W4226138001 cites W3111566396 @default.
• W4226138001 cites W3112199667 @default.
• W4226138001 cites W3112444816 @default.
• W4226138001 cites W4200525777 @default.
• W4226138001 cites W4232310430 @default.
• W4226138001 cites W4232999399 @default.
• W4226138001 cites W4246709628 @default.

• next