It is important to construct or recreate different types of wetlands and study their retention of nutrients, since knowledge of their effectiveness in this matter is poor. In 2003 a wetland was constructed on an old meadow on the western shore of Lake Bornsjön in central Sweden. The main purpose of the wetland was to reduce the amount of phosphorus entering the lake, which is the back-up water supply for Stockholm when the city cannot obtain water from Lake Mälaren. Large areas around Lake Bornsjön consist of agricultural land and the nutrient concentrations in the inflows to the lake are usually relatively high (approx. 1 mg/l total nitrogen and 0.05-0.1 mg/l total phosphorus).

Contemporary plant design can be examined by how it relates to two extremes - Nature and Art. This idea is explained by Noel Kingsbury in the book The Dynamic Landscape where he places designers and their projects on a gradient (Kingsbury, 2004). Nature, one of the extremes can be represented by a dynamic, species-rich plant design with native species and with nature as the ideal. The other extreme - Art implies a more static view on plant design. Here, the designs consist of colourful flowers, exotic species and cultivars with double flowers.

Eco certification of small housesTo construct an environmental friendly building and show that as a company you care for the environment, is presently very attractive in the Swedish real estate market.This degree thesis covers the environmental certification called ?Svanenmärkning? the Swan, witch is the Swedish equivalent to the European standard ?the EU Flower?. It is concentrated on the certification process in small houses that the Swedish institute of standard, SIS, has presented. We have worked together with the company Faluhus witch is a Swedish producer of small family houses.Faluhus is located in the town of Borlänge, Dalarna and has produced family houses since the 1950:s. They have a great heritage born in the old Swedish mining culture, with great wooden mansions and country homes.

AbstractThe genetic diversity in cultural plants is considered to be threatened due to global climate change and antropogenic influence. Unknowing of future conditions for cultivation, gene banks all over the world are now trying to build up costly safety nets of species and varieties that may become highly valuable owing to their specific traits and genetic heredity. Hence, in 2002 there was a national inventory, aimed at the Swedish public, asking for seeds believed to be lost. Among the resulting collected seeds were some accessions of garden bean, Phaseolus vulgaris. The objective of this particular study was to assemble a collection of unique varieties and discard possible duplicates.

Sammanfattning (English below) Jag har alltid tyckt om naturen och haft en föreställning om att all växtlighet som inte är tydligt anlagd, som en gräsmatta eller en rabatt, är något som naturen åstadkommit av sig själv. Mina ögon öppnades för alternativen när jag för första gången hörde begreppet ?naturlik plantering?. Det här arbetets syfte är att ta reda på hur lik naturen naturlika planteringar egentligen är, om de är planerat naturlika eller något som används som utfyllnad. Syftet är också att ge en indikation på vilken status den naturlika planteringen har. Arbetet består av tre delar. En historisk del som utforskar ursprunget till begreppet ?naturlik?.

The purpose with this thesis is to investigate how to design a urban space so that it is experienced safe and how to implement this at an actual site. Knowledge on the subject has been gathered through litterature studies and interviews with experts. Through an analysis of the site with surroundings and studies of projects with similar problems, practical actions have been observed. Part taking in the municipalities planning process has given insight in the projekt as an whole and the interests of different parties. There are many different opinions about what the word safety means. It is a feeling depending on situation, that is affecting our daily behaviour.