Publikation von Schuett et al. in Urban Forestry & Urban Greening
5. August 2022, von Klaus Berger
Foto: Alexander Schütt / IfB
Alexander Schütt, Joscha Becker, Alexander Gröngröft, Selina Schaaf-Titel und Annette Eschenbach haben in Urban Forestry & Urban Greening einen Artikel über
Soil Water Stress at Young Urban Street-tree Sites in Response to Meteorology and Site Parameters
publiziert. Englische Kurzbeschreibung:
Over four years we investigated the in-situ soil water availability in three soil compartments of the potential rooting zone (root ball, planting pit and urban soil) at 17 young urban street tree sites in the city of Hamburg. Critical soil water availability has increasingly shifted over the years from the root ball into the entire planting pit as a result of root development. Trees also extracted water from the surrounding urban soil, however less effective what might be caused by hydraulic conductivity limitations. During the extraordinary dry years of 2018 and 2019 the trees were exposed to 3-5 months of critical soil water availability in the root ball and the planting pit. Soil water availability could be mainly predicted by the variables precipitation (long and sufficient rain > short and intensive rain), tree age (increasing water demand) and soil temperature (reflecting water affecting site characteristics).
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