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The Role of Brownfields and Their Revitalisation for the Functional Connectivity of the Urban Tree System in a Regrowing City

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  • Manuel Wolff

    (Landscape Ecology Lab, Department of Geography, Humboldt University Berlin, 10099 Berlin, Germany
    Department of Urban and Environmental Sociology, Helmholtz-Centre for Environmental Research—UFZ, 04318 Leipzig, Germany)

  • Dagmar Haase

    (Landscape Ecology Lab, Department of Geography, Humboldt University Berlin, 10099 Berlin, Germany
    Department of Computational Landscape Ecology, Helmholtz-Centre for Environmental Research—UFZ, 04318 Leipzig, Germany)

  • Jörg Priess

    (Department of Computational Landscape Ecology, Helmholtz-Centre for Environmental Research—UFZ, 04318 Leipzig, Germany)

  • Tobias Leander Hoffmann

    (Landscape Ecology Lab, Department of Geography, Humboldt University Berlin, 10099 Berlin, Germany)

Abstract

The connectivity of green infrastructure facilitating the movement of organisms is the key to strengthening biodiversity in cities. Brownfields are a valuable land resource, with their revitalisation as a Nature Based Solution high on the policy agenda. In supporting cities which simultaneously aim for densification and the maintenance or further development of greenery, this paper develops a model for identifying and prioritising the role of revitalised and prevailing brownfields for the connectivity of green infrastructure using the example of Leipzig, Germany. Comparing metrics between land use categories, brownfields have a central role as stepping stones, with a value of 13%, while revitalised brownfields substantially contribute to global connectivity, with a value of 87% being equally important, for example, with Leipzig’s central parks. This paper’s spatial-explicit network approach provides a complementary planning tool for prioritising brownfields and the added value of their renaturing by identifying (a) strategic functional corridors formed by brownfields, (b) the connectivity relevance and exposure of individual brownfields, and (c) how renatured brownfields would strengthen existing corridors and form alternative paths. This paper presents an approach using freely available software tools and high-resolution canopy data as a proxy for functional connectivity which serves as a standardised and comparable ex-ante evaluation of NBS strategies being implemented in other cities.

Suggested Citation

  • Manuel Wolff & Dagmar Haase & Jörg Priess & Tobias Leander Hoffmann, 2023. "The Role of Brownfields and Their Revitalisation for the Functional Connectivity of the Urban Tree System in a Regrowing City," Land, MDPI, vol. 12(2), pages 1-22, January.
    • Handle: RePEc:gam:jlands:v:12:y:2023:i:2:p:333-:d:1047381
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    References listed on IDEAS

    as
    1. Monika Egerer & Elsa Anderson, 2020. "Social-Ecological Connectivity to Understand Ecosystem Service Provision across Networks in Urban Landscapes," Land, MDPI, vol. 9(12), pages 1-14, December.
    2. Ephraim M. Hanks & Mevin B. Hooten, 2013. "Circuit Theory and Model-Based Inference for Landscape Connectivity," Journal of the American Statistical Association, Taylor & Francis Journals, vol. 108(501), pages 22-33, March.
    3. Robby R Marrotte & Jeff Bowman, 2017. "The relationship between least-cost and resistance distance," PLOS ONE, Public Library of Science, vol. 12(3), pages 1-19, March.
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