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The Various Challenges in Urban Ecosystem Research
Heikki SetäläUniversity of Helsinki
Department of Ecological and Environmental Sciences
Hot future topic Climate change
Increased temperature
Pori, August 2007
20 milj. Euros
20 milj. Euros Other negative
consequences ...
CITIES and global change
Climate change- precipitation- temperature
Land use change- urbanisationn- agriculture etc.
Drastic Increase in sealed surfaces
City floods Contamination of surface waters (= hulevedet)
problems
Why to worry about impermeable, covered soils
Soils are an essential FUNCTIONAL UNITin all terrestrial ecosystems
Ecoystem Services
ECOSYSTEM SERVICES
- food
- Water purification- Nutrient cycling- Detoxification- etc.
”Living soil””
Outcomes of urban land use
2 Reduced and fragmented urban green space
Biodiversity aspects?Esthetical aspects?ELSE?