Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1007/s11270-007-9488-8
Volltext Shareable Link
Titel (primär) Design and operability of a large weighable fen lysimeter
Autor Rupp, H.; Meißner, R.; Leinweber, P.; Lennartz, B.; Seyfarth, M.
Quelle Water Air and Soil Pollution
Erscheinungsjahr 2007
Department BOPHY
Band/Volume 186
Heft 1-4
Seite von 323
Seite bis 335
Sprache englisch
Keywords Horizontal flow; Large weighable fen lysimeter; Lysimeter; Measurement technique; Operability
Abstract In principle, conventional lysimeters are suitable for the investigation of vertical water and solute fluxes. Lateral fluxes in water-saturated fen sites are characterized by heterogeneities and abnormities due to anisotropic layering. But due to lack of adequate monitoring techniques, these fluxes have been insufficiently analyzed. The newly developed large weighable fen lysimeter (LWFL) overcomes the limitations of conventional lysimetry and enables the measurement of vertical and horizontal transport processes in undisturbed large volume soil monoliths. The LWFL has a volume of 6 m3 (4 m length, 1 m width and 1.5 m depth) and was tested by filling the lysimeter with an undisturbed fen monolith. A special extraction procedure for the horizontal sliding of the lysimeter vessel through the natural fen was developed. In front of the vessel a converted cutting tool assisted in carving the soil monolith out of the peat, both vertically and horizontally. Inlet and outlet of the LWFL was constructed to allow the adjustment of a wide range of hydraulic gradients to depict natural occurring lateral transport processes. The LWFL including the measurement techniques was tested successfully for 3 years. On the basis of these tests, we conclude that complex physical and biogeochemical research problems involving lateral flows can be tackled now with multiphase observations and measurements at high spatial and temporal resolution, transdisciplinary data evaluation and numerical modelling approaches.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=2224
Rupp, H., Meißner, R., Leinweber, P., Lennartz, B., Seyfarth, M. (2007):
Design and operability of a large weighable fen lysimeter
Water Air Soil Pollut. 186 (1-4), 323 - 335 10.1007/s11270-007-9488-8