Home > Conference materials > Papers > Water balance in short rotation poplar coppice and reference grass-plot in conditions of Czech-Moravian Highlands
Original title:
Water balance in short rotation poplar coppice and reference grass-plot in conditions of Czech-Moravian Highlands
Authors:
Orság, Matěj ; Fischer, Milan ; Trnka, Miroslav ; Hlavinka, Petr ; Kučera, J. ; Balek, J. ; Žalud, Zdeněk Document type: Papers Conference/Event: Hydrologie malého povodí 2011, Praha (CZ), 2011-03-08 / 2011-03-10
Year:
2011
Language:
eng Abstract:
This text presents results of a study focusing on differences of water balance between two contrasting cultures - short rotation poplar coppice and grass plot in conditions of Czech-Moravian Highlands. Actual evapotranspiration (by Bowen ratio energy balance method), precipitation and soil moisture in two layers (0 – 0.45 m and 0.45 – 0.90 m) were measured on both plots during seasons 2008 – 2010. The seasonal water lost through evapotranspiration was higher for the grass (560.4 and 508 mm for grass and 523.8 and 351.8 mm for poplar during growing season 2009 and 2010 respectively), but generally the observed amounts of ETa are comparable for both cultures and within the range of values described in literature. Results of soil moisture measurements expressed as soil water availability [mm] were compared with simulations obtained from water balance model SoilClim. The model a little bit underestimated the amount of available water in the system, since based on water balance closure we suggest that there is a higher water income than was recorded from precipitation. This extra water found in observed systems may be supplied probably by lateral underground water inflow from the upper fields.
Keywords:
actual evapotranspiration; grass; poplar; soil water availability; water balance Project no.: CEZ:AV0Z60870520 (CEP), ED1.1.00/02.0073 Funding provider: GA MŠk Host item entry: Hydrologie malého povodí 2011, ISBN 978-80-02-02290-9
Institution: Global Change Research Institute AS ČR
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Document availability information: Fulltext is available at the institute of the Academy of Sciences. Original record: http://hdl.handle.net/11104/0207285