94 uppsatser · sida 3 av 7
ett exempel på medbestämmande planering
… I have also made two small literature studies regarding planning of wetlands and grazing. One of the biggest changes, which is proposed in the area, is the reintroduction of grazing. The grazing keeps the landscape well groomed, is good for the biodiversity and become an …
En fältstudie i Laholms jordbrukslandskap
… amphibians are depended upon small water bodies for their reproduction. Wetlands have been constructed to reduce the impacts of the eutrophication in the Laholm bay. In my study I have chosen to examine the composition of amphibian species in 34 of those newly constructed …
påverkande faktorer och metodik för statistisk modellering
… water is currently treated by different methods such as wet ponds, constructed wetlands and filter strips. This study investigates these methods, which in earlier studies have shown to give varying results regarding their treatment efficiency. This thesis has been written on …
… due to a lack of preferred nesting habitat, such as shrub-lands or dense wetlands with Claudium spp. Such wetlands are often drained, resulting in encroachment of bushes and trees into the marshes. In such cases, Harriers usually abandon such areas, and as a consequence >90% of …
Höje å
… Demands of a more effective agriculture led to straightening and drainage of wetlands and watercourses. This had a large impact on Höje-å. More recently changes in the opposite direction can be seen. In 1990 an environmental project started which aimed to reduce high levels of …
En jämförande studie i pilotskala
… parameters were analyzed for the influent every week. The result shows that a wetland is a good way of treating the landfill leachate as the BOD5, COD and TKN decreases. Moreover the color, which contravenes with legislative demands in the region, was distinctly decreased. Yet …
En pilotstudie vid Univates, Lajeado ? RS Brasilien
Treatment wetlands been showed efficient for reducing pollutant in waste water. In Lajeado ? RS, Brazil the landfill has poor leachate water treatment. It is necessary to supplement the treatment plant because they need to reduce BOD, COD and nitrate of the water going to …
… insects in open-land areas, beetles in dead wood and amphibians and mosses in wetlands and swamp forests.In order to locate suitable sites for reintroduction I hadthe national power line system (Stamnätet) in mind; this is unproductive land from an economic point of view. The …
During the last two hundred years many wetlands and streams in Sweden have been lowered to provide land for agriculture and forestry. Some of the coastal wetlands and streams probably served as spawning sites for certain species of fish in the Baltic Sea, but the present …
During the last two hundred years many wetlands and streams in Sweden have been lowered to provide land for agriculture and forestry. Some of the coastal wetlands and streams probably served as spawning sites for certain species of fish in the Baltic Sea, but the present …
… with 170 ha together with an urbanization of 311 ha, at the same time as wetlands and arable land has diminished and lakes has suffered from reductions. Wetlands have been reduced with 76 ha and the ones remaining are of insufficient quality from a nutrient removal perspective …
flytande reningsverk?
År 2000 godkände Sverige EUs vattendirektiv. Det innebär att vi måste arbeta för att vattnet ska ha en god kvalité och det får inte ha för höga halter av förorenade ämnen. Vid förorening kan vattnet skada människor, djur och växter. Sverige måste ständigt jobba och förbättra …
en fältstudie på känsliga marker
… is enough consideration taken to sensitive forest areas close to water or wetlands during clear cutting assignments, and to estimate the extent of damage made by forestry machines used at that time. A field and literature study is used to show how to improve and prevent the …
… of sustainable land use. In 2014, applications for funding constructed wetlands were not available. This paper examines the environmental consequences of this lack of funding in one intensively cultivated region Skåne län, southern Sweden. A review of wetland applications …
… that showed a certain tendency to act as carbon sources were the forested wetlands in R?ne?, Lule? and Bj?rk?fj?rden, Sundsvall. The most dominant plant species here were composed of more labile organic matter. If this material contributes to the organic stocks in the sediments …
