title: Distinction, quantification and mapping of potential and realized supply-demand of flow-dependent ecosystem services.
abstract: This study addresses and conceptualizes the possible dependence of ecosystem services on prevailing air and/or water flow processes and conditions, and particularly on the trajectories and associated spatial reach of these flows in carrying services from supply to demand areas in the landscape. The present conceptualization considers and accounts for such flow-dependence in terms of potential and actually realized service supply and demand, which may generally differ and must therefore be distinguished due to and accounting for the prevailing conditions of service carrier flows. We here concretize and quantify such flow-dependence for a specific landscape case (the Stockholm region, Sweden) and for two examples of regulating ecosystem services: local climate regulation and storm water regulation. For these service and landscape examples, we identify, quantify and map key areas of potential and realized service supply and demand, based for the former (potential) on prevailing relatively static types of landscape conditions (such as land-cover/use, soil type and demographics), and for the latter (realized) on relevant carrier air and water flows. These first-order quantification examples constitute first steps towards further development of generally needed such flow-dependence assessments for various types of ecosystem services in different landscapes over the world.
authors.affiliation: Department of Physical Geography & Bolin Center for Climate Research, Stockholm University, SE-10691 Stockholm, Sweden. Electronic address: romain.goldenberg@natgeo.su.se.
authors.forename: Romain
authors.initials: R
authors.lastname: Goldenberg
authors.affiliation: Department of Physical Geography & Bolin Center for Climate Research, Stockholm University, SE-10691 Stockholm, Sweden.
authors.forename: Zahra
authors.initials: Z
authors.lastname: Kalantari
authors.affiliation: Division of Land and Water Resources, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden.
authors.forename: Vladimir
authors.initials: V
authors.lastname: Cvetkovic
authors.affiliation: Division of Land and Water Resources, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden.
authors.forename: Ulla
authors.initials: U
authors.lastname: Mörtberg
authors.affiliation: Department of Urban and Regional Planning, University of Illinois at Urbana-Champaign, IL-61820 Champaign, USA.
authors.forename: Brian
authors.initials: B
authors.lastname: Deal
authors.affiliation: Department of Physical Geography & Bolin Center for Climate Research, Stockholm University, SE-10691 Stockholm, Sweden.
authors.forename: Georgia
authors.initials: G
authors.lastname: Destouni
keywords: Ecosystem services; Flow dependence; Local climate regulation; Potential and realized service; Stockholm region; Storm water regulation