11 uppsatser
… Forest, region Örnsköldsvik. This study will be the basis for deciding if the Hydrology Layer Property map or Holmen Forest map will be used for planning nitrogen fertilization in forestry. The background to this study is that nitrogen fertilization near water will increase the …
modellering och åtgärdssimulering
Under de senaste 300 åren har jordbrukslandskapet i Sverige genomgått stora förändringar. I början av 1900-talet introducerades konstgödslet och efter andra världskriget ökade gödslingen dramatiskt i syfte att maximera produktionen. Detta har lett till att överskottet av kväve …
undersökning av djupvariation i BO01-området, Västra hamnen, Malmö, samt utveckling av en matematisk formel för beräkning av PAH-koncentrationer från ett kontinuerligt utsläpp
At the end of August 1999, the local government council of Malmö city decided that the area known as Kvarteret Bilen would be made available for the European Housing Exhibition 2001 (Bo01-mässan). Kvarteret Bilen extends over approximately 80 hectars and includes the western …
Soil properties affect the chemical composition of soil water. When studying transport of chemical substances through a basin, it is therefore important to know from which soil layer the main part of the runoff is generated. The aim of this study is to develop an HBV/PULSE model …
… of iron in the specific area and to a temporary change in the groundwater hydrology close to the stream, as a result of the ditching in 1999 and clear cutting of forests surrounding the lake Fursjön. This, combined with the fact of dense vegetation in and surrounding the shallow …
kan anlagda våtmarker med vattenrening som huvudsyfte bidra till naturvård och biologisk mångfald?
… and water treatment are optimized separately. Consequently, naturally hydrology can be maintained to create a viable habitat without risking the effect of the process of water treatment.
… might be that differences in for example site index, soil structure and hydrology was more important for forage production than the clearing treatment. This highlights the importance to select suitableroads for wildlife-adapted clearing. No difference in browsing frequency was …
Eutrophication of lakes and streams are nowadays a well known environmental problem and implies an enrichment of the nutrients phosphorus (P) and nitrogen (N). Phosphorus is considered to be the most important component for the growth of aquatic plants and leads in too large …
Topography is an important parameter for catchment hydrology, since it is a driver for water flow. Moreover, topography serves as a basis for hydrological models, e.g. ”Top-model”, which is based on a topographical wetness index (TWI). Few studies of TWI have been conducted on …
ett gis-baserat försök med dtw-index och laserskannad övre höjd
The depth-to-water-index (DTW-index) is derived from digital elevation models (DEM) to map soil wetness, in terms of distance from soil surface to the ground water table. The aim of this GIS based study was to investigate the existence of a relationship between DTW-index and …
En studie kring hotet mot Åre kommuns vinterturism och dess anpassning till framtida klimatförändringar
… with a meteorologist/climatologist on the Swedish institute of Meteorology and Hydrology (SMHI) has also been conducted to try and understand the reliability of the climate change scenarios. Some of the climate scenarios studied in this study and that have formed the basis of …
