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573 Uppsatser om South Korea - Sida 39 av 39
Potentiell fosforfrigörelse från sedimentet i Bornsjön, sydvästra Stockholm : The potential leakage of phosphorus from sediment in Lake Bornsjön, south western Stockholm
Lake Bornsjön is situated 30 km southwest of Stockholm in a rift valley lake and consist three basins outstretched in northwest-southeast direction. The surface area is 6,7 km2 with a maximum depth of 18,3 meters, a mean depth of 9,8 meters and a retention time of the water of 6,5 years. The drainage area is 42 km2 and consists mainly of arable land (ca 1000 ha) and productive forestry land (2500 ha), but in the drainage area there are also restored and fairly newly constructed wetlands.Today the Stockholm area receives its drinking water from Lake Mälaren, but if there would be any pollution of this source, Lake Bornsjön would act as the water source. The area surrounding the lake was bought already in 1899 by Stockholm Stad for protection of the lake and was taken over 1993 by Stockholm Vatten AB. It has been a water protection area from 1988 and it was also accepted as a nature reserve in 1995.
Att restaurera forna tiders beståndsstruktur : ett exempel från Jämtgaveln
In Sweden today so-called "prescribed nature conservation burning" is performed due to the change in silvicultural law, certification and an increased knowledge regarding the field of fire in the forest landscape. The aim is to re-create structures and qualities made by the fire regimes of the past, though on a much smaller geographical scale. The structures and qualities to be re-created are for example broad leaf stands, trees with large diameter, heterogeneous stands regarding variables such as age and diameter. If we increase our knowledge of the constitution of forests characterized by fire, then we will be able to set goals for what achievements to reach both on landscape scale and stand scale.
The aim of this paper is to try to describe how a stand from the past was composed regarding mainly the spatial arrangement and compare it with the stand of today in the same place. This to be done by using relict material, that is stumps and dead standing trees.
English Arts and Crafts gardens and how they can be modernised in Sweden
The aim with this thesis was to investigate what characterises an English
Arts and Crafts garden how they could be modernised in Sweden. My
research was limited to 20 weeks of full-time writing and worth 30 ECTS.
Through literature studies, interviews and site visits I could analyse my
findings which resulted in a concrete garden design project.
The Arts and Crafts was a movement that started in England during the
1880?s and evolved as a reaction towards the industrialisation. The influence
came from the writings and practices of John Ruskin (1819-1900)
and William Morris (1834-1896) who advocated the importance of craftsmanship.
The Arts and Crafts movement also became a ?recipe for life?
and was associated with a healthy and morally pure way of living.