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The Various Challenges in Urban Ecosystem Research

The Various Challenges in Urban Ecosystem Research. Heikki Setälä University of Helsinki Department of Ecological and Environmental Sciences. Pori, August 2007. Increased temperature. 20 milj. Euros. Hot future topic. Climate change. Other negative consequences. Drastic Increase in

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The Various Challenges in Urban Ecosystem Research

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  1. The Various Challenges in Urban Ecosystem Research Heikki Setälä University of Helsinki Department of Ecological and Environmental Sciences

  2. Pori, August 2007 Increased temperature 20 milj. Euros Hot future topic Climate change Other negative consequences ...

  3. Drastic Increase in sealed surfaces City floods Contamination of surface waters (= hulevedet) problems CITIES and global change Climate change - precipitation - temperature Land use change - urbanisationn - agriculture etc.

  4. 1) Ecologists’s perspective Problems with hydrological cycles

  5. 2) Ecologist’s perspective  Problems with Urban land use

  6. Soils are an essential FUNCTIONAL UNIT in all terrestrial ecosystems Ecoystem Services Why to worry about impermeable, covered soils

  7. ”Living soil” ” ECOSYSTEM SERVICES - food • Water purification • Nutrient cycling • Detoxification • etc.

  8. 1 Outcomes of urban land use Down-town Lahti: > million m3 stormwaters to lake Vesijärvi

  9. 2 Outcomes of urban land use Reduced and fragmented urban green space Biodiversity aspects? Esthetical aspects? ELSE?

  10. HOLISTIC view of urban systems: Urban ecosystem service network

  11. Decisions/advice for City officials? More appreciation towards urban green areas ESPECIALLY To consider urban systems as ECOSYSTEMS with essential life-supprting services Sustainable future for cities and their inhabitants

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