Author:
Halbfaß S.,Gebel M.,Bürger S.
Abstract
Abstract. In order to derive measures to reduce nutrient loadings into waters in Saxony, we calculated nitrogen inputs with the model STOFFBILANZ on the regional scale. Thereby we have to compare our modelling results to measured loadings at the river basin outlets, considering long term nutrient retention in surface waters. The most important mechanism of nitrogen retention is the denitrification in the contact zone of water and sediment, being controlled by hydraulic and micro-biological processes. Retention capacity is derived on the basis of the nutrient spiralling concept, using water residence time (hydraulic aspect) and time-specific N-uptake by microorganisms (biological aspect). Short time related processes of mobilization and immobilization are neglected, because they are of minor importance for the derivation of measures on the regional scale.
Reference19 articles.
1. Boulton, A. J., Findlay, S., Marmonier, P., Stanley, E. H., and Valett, H. M.: The functional significance of the hyporheic zone in streams and rivers, Annu. Rev. Ecol. Syst., 29, 59–81, 1998.
2. Bundt, M.: Highways Through the Soil. Properties of Preferential Flow Paths and Transport of Reactive Compounds, Ph.D thesis, Zürich, 2000.
3. Chapman, A. S., Foster, I. D. L., Lees, J. A., Hodgkinson, R. A., and Jackson, R. H.: Particulate phosphorus transport by sub-surface drainage from agricultural land in the UK, Environmental significance at the catchment and national scale, Sci. Total Environ., 266, 95–102, 2001.
4. Donner, S. D., Kucharik, C. J., and Oppenheimer, M.: The influence of climate on in-stream removal of nitrogen, Geophys. Res. Lett., 31, L20509, https://doi.org/10.1029/2004GL020477, 2004.
5. Gebel, M., Halbfaß, S., Bürger, S., Friese, H., and Naumann, S.: Modelling of nitrogen turnover and leaching in Saxony, Adv. Geosci., 27, 139–144, https://doi.org/10.5194/adgeo-27-139-2010, 2010.
Cited by
5 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献