Effects of nitrogen and phosphorus load reduction on benthic phosphorus release in a riverine lake
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| 024 | 7 | 0 | |a 10.1007/s10533-014-0062-3 |2 doi |
| 035 | |a (NATIONALLICENCE)springer-10.1007/s10533-014-0062-3 | ||
| 245 | 0 | 0 | |a Effects of nitrogen and phosphorus load reduction on benthic phosphorus release in a riverine lake |h [Elektronische Daten] |c [B. Grüneberg, T. Dadi, C. Lindim, H. Fischer] |
| 520 | 3 | |a The Lower Havel in Berlin is a polymictic riverine lake, thermally stratified for some days or weeks in summer. It is characterized by a relatively high mean total phosphorus concentration (145µgl−1) and frequent cyanobacteria mass development in summer. We quantified the potentially mobile P pool in sediments, determined P fluxes based on conventional dialysis sampler-, gel probe- and benthic chamber measurements, and combined this with column experiments and P budget calculations to evaluate whether a) a reduction of P loading would be counterbalanced by P release from sediment, and b) release of redox sensitive P would even increase with reduction of nitrogen loading. The potentially mobile P pool was relatively small (228t) compared to mean annual external load (190ta−1) and gross P release (1.2-36mgm−2day−1), and was thus of little relevance for long-term P availability. Despite 38% of P in the sediment being redox sensitive, the seasonal course of P gross release was mainly driven by redox independent organic matter mineralization of diagenetically young surface sediment. Under anoxic conditions, P release was higher than under oxic conditions and to some extent controlled by nitrate under laboratory conditions. However, ambient nitrate availability was too low to affect P release which was more dependent on mineralization and Fe availability than on redox. Therefore, the Lower Havel would benefit from P load reduction but internal P loading would be largely unaffected from further N load reduction. | |
| 540 | |a Springer International Publishing Switzerland, 2014 | ||
| 690 | 7 | |a P budget |2 nationallicence | |
| 690 | 7 | |a Diffusive flux |2 nationallicence | |
| 690 | 7 | |a Benthic chamber |2 nationallicence | |
| 690 | 7 | |a P pool |2 nationallicence | |
| 690 | 7 | |a Temporary storage |2 nationallicence | |
| 690 | 7 | |a Nitrate |2 nationallicence | |
| 700 | 1 | |a Grüneberg |D B. |u Brandenburg University of Technology Cottbus-Senftenberg, Seestr. 45, 15526, Bad Saarow, Germany |4 aut | |
| 700 | 1 | |a Dadi |D T. |u Brandenburg University of Technology Cottbus-Senftenberg, Seestr. 45, 15526, Bad Saarow, Germany |4 aut | |
| 700 | 1 | |a Lindim |D C. |u Federal Institute of Hydrology, Am Mainzer Tor 1, 56068, Koblenz, Germany |4 aut | |
| 700 | 1 | |a Fischer |D H. |u Federal Institute of Hydrology, Am Mainzer Tor 1, 56068, Koblenz, Germany |4 aut | |
| 773 | 0 | |t Biogeochemistry |d Springer International Publishing |g 123/1-2(2015-03-01), 185-202 |x 0168-2563 |q 123:1-2<185 |1 2015 |2 123 |o 10533 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s10533-014-0062-3 |q text/html |z Onlinezugriff via DOI |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-springer | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1007/s10533-014-0062-3 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Grüneberg |D B. |u Brandenburg University of Technology Cottbus-Senftenberg, Seestr. 45, 15526, Bad Saarow, Germany |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Dadi |D T. |u Brandenburg University of Technology Cottbus-Senftenberg, Seestr. 45, 15526, Bad Saarow, Germany |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Lindim |D C. |u Federal Institute of Hydrology, Am Mainzer Tor 1, 56068, Koblenz, Germany |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Fischer |D H. |u Federal Institute of Hydrology, Am Mainzer Tor 1, 56068, Koblenz, Germany |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Biogeochemistry |d Springer International Publishing |g 123/1-2(2015-03-01), 185-202 |x 0168-2563 |q 123:1-2<185 |1 2015 |2 123 |o 10533 | ||