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Research article - Peer-reviewed, 2019

Ecohydrological consequences of tree removal in an urban park evaluated using open data, free software and a minimalist measuring campaign

Deutscher, Jan; Kupec, Petr; Kucera, Ales; Urban, Josef; Ledesma, Jose L. J.; Futter, Martyn

Abstract

With ongoing global climate change and an increasingly urbanized population, the importance of city parks and other forms of urban vegetation increases. Trees in urban parks can play an important role in mitigating runoff and delivering other ecosystem services. Park managers, E-NGOs, citizen scientists and others are increasingly called upon to evaluate the possible consequences of changes in park management such as, e.g., tree removal. Here, we present an unorthodox approach to hydrological modelling and its potential use in local policy making regarding urban greenery. The approach consists of a minimalist field campaign to characterize vegetation and soil moisture status combined with a novel model calibration using freely available data and software. During modelling, we were able to obtain coefficients of determination (R-2) of 0.66 and 0.73 for probe-measured and simulated soil moisture under tree stand and park lawn land covers respectively. The results demonstrated that tree cover had a significant positive effect on the hydrological regime of the locality through interception, transpiration and effects on soil moisture. Simulations suggested that tree cover was twice as effective at mitigating runoff than park lawn and almost seven times better than impervious surfaces. In the case of a potential replacement of tree vegetation in favour of park lawn or impervious surfaces an increase in runoff of 14% and 81% respectively could be expected. The main conclusion drawn from our study was that such an approach can be a very useful tool for supporting local decision-making processes as it offers a freely available, cheap and relatively easy-to-use way to describe the hydrological consequences of landcover change (e.g., tree removal) with sufficient accuracy. (C) 2018 The Authors. Published by Elsevier B.V.

Keywords

Urban greenery; Green infrastructure; Ecohydrological services; Open data; Runoff modelling; Open science

Published in

Science of the Total Environment
2019, volume: 655, pages: 1495-1504
Publisher: ELSEVIER SCIENCE BV

Authors' information

Deutscher, Jan
Mendel University Brno
Kupec, Petr
Mendel University Brno
Kucera, Ales
Mendel University Brno
Urban, Josef
Mendel University Brno
Ledesma, Jose
Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment
Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment

Sustainable Development Goals

SDG13 Climate action
SDG11 Sustainable cities and communities

UKÄ Subject classification

Oceanography, Hydrology, Water Resources

Publication Identifiers

DOI: https://doi.org/10.1016/j.scitotenv.2018.11.277

URI (permanent link to this page)

https://res.slu.se/id/publ/97927