Choose one or more of the following tasks:
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Compare before and after picture pairs – Look at each of the following picture pairs*. Can you identify sealed areas on the picture pairs and describe the consequences of sealing on soil functions? Share your answers in the forum or in your soil diray. * Information about photographers, location and description of pictures’ content is found here (in Norwegian only)
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Picture pair 1. Credits: (2009/2022) Oskar Puschmann/NIBIO |
Location: Ås, Ås municipality, Norway. Description: An agricultural field replaced partly by a new settlement. Cause: Town development, construction of houses and infrastructures Consequences on soil functions?
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Picture pair 2. Credits: (2000/2006) Oskar Puschmann/NIBIO |
Location: Vinne, Verdal municipality, Norway. Description: Building of new agricultural facilities and buildings. Cause: Modernization of existing farms Consequences for soil functions? |
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Picture pair 3. Credits: (1938) Anders Beer Wilse and (2018) Oskar Puschmann/NIBIO |
Location: Kråkstad, Nordre Follo municipality, Norway. Description: Agricultural field and national road 6 in the background. Road was enlarged to highway E18 to accommodate transportation in 1965. Cause: Transportation and infrastructure development Consequences on soil functions?
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Picture pair 4. Credits: (1884) Axel Lindahl – (2004) Oskar Puschmann/NIBIO |
Location: Lærdalsøyri, Lærdal municipality, Norway. Description: Cultural landscape along the Lærdal river. Cause: town development Consequences on soil functions?
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Picture pair 5. Credits: (2001/2010) Oskar Puschmann/NIBIO |
Location: Austefjord, Volda municipality, Norway. Description: Old cart road. Access road to a farm. Cause: the farm uphill was rebuilt. Path was enlarged and modified to accommodate traffic. Consequences on soil functions?
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Picture pair 6. Credits: (1932) Anders Beer Wilse, (2004) Oskar Puschmann/NIBIO |
Location: Åna-Sira, Flekkefjord municipality, Norway. Description: Settlement tied to fishing activity on the Siregrunnen bank. Later continued fishing industry-related activity there. Cause: Town development Consequences on soil functions?
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Picture pair 7. Credits: (1885) Axel Lindhal, (2004) Oskar Puschmann/NIBIO |
Location: Geiranger, Stranda municipality, Norway. Description: Fjord landscape, fishing activity disappeared. Today this place is a very popular touristic place. Cause: town and tourism development. Consequences on soil functions?
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2. Creative Task – Use the examples of measures that you have learned about and design a simple idea to mitigate soil sealing in your neighbourhood (sketch or short description). Share in the forum or in your soil diary.
3. DIY activity – demonstrate the heat island effect: for this, you need a source of heat (the sun or a lamp, not a LED lamp!), your skin, a patch of vegetation and a patch of hard surface (concrete, tiles, asphalt, glass). Expose the two surfaces to the heat source for 1 minute. Alternatively, reproduce this experiment outside during a sunny day. After one minute, experience the difference in temperature in contact to your skin. You will see that the vegetation-covered patch is cooler than the sealed/hard surface. This will probably bring back some memories of your childhood when you were walking bare feet in your garden/the neighbouring park.
4. Test the powerful technique of repeat photography – apply the technique of repeat photography and document soil sealing around you. We propose two options: 1. Documentation based on historical photographs (online or from archives) and family albums or 2. Documentation for the future. Check out the method for repeat photography HERE.
5. Explore how sealed areas can be re-used: the case of the former Oslo airport at Fornebu (Bærum municipality, Norway). In the web map service of your choice, go to the following location 59° 53′ 48.5″ North, 10° 36′ 51.8″ East or do this at https://kilden.nibio.no, enter “Fornebu”, explore old aerial photographs and the newest version. The airport closed in 1998. What has been done with the old landing/take-off tracks? Inform yourself about changes at the site over the years and try to find a similar case in your area. Share your findings in the forum or in your soil diary.
6. Discover the arts of soil sealing – do you know about any songs, poems, paintings etc. where soil sealing or the effect of soil sealing is reflected? If not, make one yourself.
7. Reflect on the pathways of rainwater – Where and how does the water flow in your everyday surroundings, with or without soil sealing?
Link missing in no. 4