Monetary value of urban green space as an ecosystem service provider: A case study of urban runoff management in Finland

Sveta Silvennoinen, Maija Taka, Vesa Yli-Pelkonen, Harri Koivusalo, Markku Ollikainen and Heikki Setälä

Ecosystem Services, 2017, vol. 28, issue PA, 17-27

Abstract: The predicted increase in the number of urban flood events can result in substantial monetary losses to society. These costs may be alleviated by preserving ecosystem services, such as urban runoff management. We studied the monetary value of this ecosystem service by applying the replacement cost method in six catchments with varying land-use intensities in two cities in Finland. The economic analysis was based on metric data of urban runoff generation, provided by automatic monitoring stations in the catchments. A hydrological model was applied to estimate evaporation from impervious surfaces, and to simulate runoff in the catchments. Our results suggest that leaving green space unconstructed results in significant monetary savings. The cost of managing runoff correlated with land-use intensity. The ecosystem service value (ESV) was generally higher in catchments with high land-use intensity, low proportion of green space, and high costs of runoff management. Depending on the degree of imperviousness, the ESV ranged from 90,000–270,000€ha−1. Further, our results suggest that estimates of runoff generation and evaporation are key hydrological factors for assessing ESV. Our study demonstrates how the combination of field data and hydrological and monetary analyses can support regional planning in cold climates.

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecoser:v:28:y:2017:i:pa:p:17-27

DOI: 10.1016/j.ecoser.2017.09.013

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