94 uppsatser · sida 4 av 7
… That raises the question if other coastal ecosystems, such as coastal wetland forests, that previously haven’t been considered as blue carbon habitats also contribute to coastal carbon sink capacity. However, several studies have shown that coastal wetlands produce and emit …
I denna studie har funktionen hos sju anlagda våtmarker för behandling av avloppsvatten i Sverige jämförts över tid med avseende på avskiljning av kväve, fosfor och BOD. Syftet var att undersöka våtmarkernas långsiktiga funktion, skötselåtgärder och relaterade kostnader …
… land, effectivization of drainage systems and the declining extent of wetlands. The accumulated amount of nitrogen in water doesn’t only make it unsuitable for use by humans and cattle, but also decreases the biological diversity as well as negatively affect tourism and fish …
Carabidae) i hävdade strandnära gräsmarker :
… carabid community. That is, a large moist area contains a higher part of wetland species than does a smaller moist area. The distance to open water was not of great importance. In the wet grasslands diversity seemed to increase linearly with the variation in vegetation height …
… also smaller areas with young broadleaved forest, noble broadleaved forest and wetlands. We describe the Skedalaskogen both according to forest and landscape conditions and according to factors like history, paths, roads and topography. This has been done because we want the …
jämförelse mellan 1940, 1980 och 2000-talet
Populärvetenskaplig sammanfattning: Småvatten i form av dammar och våtmarker har en viktig funktion i både den terrestra och akvatiska miljön. De fungerar till exempel som buffert för näringsämnen från att flöda ut i havet och dem ökar den biologiska mångfalden bland växter och …
Syftet med detta arbete är att, med hjälp av GIS och lagerföljdsdata, utforma en metodik för modellering och förståelse av våtmarker och deras utbredning. Metodiken ska, med hjälp av GIS, underlätta och förbereda för en mera automatiserad analys av lagerföljdsdata. Detta …
en förstudie i staden Picota, Peru
… population growths were compared. The systems consisted of artificial wetlands, pond systems and small-scale onsite treatment. These were also compared to the construction of a smaller wastewater treatment plant in combination with small-scale onsite treatment for different …
Populärvetenskaplig sammanfattning: Kvävebelastningen på sjöar och hav har ökat markant de senaste tiotal åren. Jordbruket står för ca 50 % av de svenska kväveutsläppen som människan bidrar till. En ökad kvävebelastning på haven kan leda till övergödning, vilket får en stor …
Two ecological models of nitrogen processes in treatment wetlands have been evaluated and compared. These models have been implemented, simulated, and visualized in the Modelica language. The differences and similarities between the Modelica modeling environment used in this …
… to broadleaf forest, forest for energy biomass production, or establishment of wetlands on former farmland. The County Administrative Boards and Regional Forestry Boards together monitored the planting of broadleaf forests. The forestry boards focused on practical concerns such …
Considering water quality, landuse and reducion of wetland area in the watershed of Tidan, areas witch are in need of constructions to improve the water quality are identified. Constructions are suggested to be located within the smaller streams in the watershed, so that the …
… length, fragmentation and patina. Additionally, I use maps to identify wetlands and a field survey to help identify and discover important areas connected to votive offerings. There is a strong possibility that the stray finds collection contains some votive offerings because …
… treatment works. These modifications in combination with the drainage of huge wetland areas and the more intense usage of agricultural fields have since the early 18th century led to a degradation of the biological diversity (Jedicke, 1994). Many environmental problems which …
växtgestaltning och planering
… The object of the thesis is to propose control and balance in urban wetlands, and discuss the difference a plant design can do. The thesis deals with discourses in the field of landscape architecture, biological diversity, dam construction, limnology, planting design and …
