Sökning: "ecology of ash"
Visar resultat 1 - 5 av 18 uppsatser innehållade orden ecology of ash.
1. Föryngring med hägn : effekten av viltbete på självföryngrad ädellövskog i tre skånska naturreservat
Kandidat-uppsats, SLU/Dept. of Forest Ecology and ManagementSammanfattning : Ädellövskogens artsammansättning styrs av flera naturliga processer, en av dessa processer är viltbete. Bete kan leda till att trädslagsfördelningen förändras och att föryngring blir problematiskt, speciellt i områden med stora viltstammar och för de mer betesbegärliga trädarterna. LÄS MER
2. Effects of 100 years of drainage on peat properties in a drained peatland forests in northern Sweden
Master-uppsats, SLU/Dept. of Forest Ecology and ManagementSammanfattning : Natural peatlands provide a small but persistent long-term carbon (C) sink. However, within the last century their extent in Sweden has declined by about 1.5-2.0 million hectares due to drainage activities. LÄS MER
3. Can the native shore crabs (Carcinus maenas) become a barrier to the invasion of the round goby (Neogobius melanostomus) in Öresund, southern Baltic Sea?
Master-uppsats, Lunds universitet/Examensarbeten i biologiSammanfattning : The round goby (Neogobius melanostomus) is a non-indigenous species to the Baltic Sea that has drawn the attention of many researchers in the last decade due to its rapid spreading and its impact on the local fauna. With recent concerns about the dispersal of the round goby towards the North Sea, the aim of this study was to determine if the native shore crab could compete with the invaders and prevent their advance. LÄS MER
4. The impact of ash dieback on ash regeneration in the forest reserve Dalby Söderskog
Master-uppsats, SLU/Southern Swedish Forest Research CentreSammanfattning : Ash dieback is affecting European ash (Fraxinus excelsior) throughout its distribution area, threatening economical forests and associated biodiversity. Studying regeneration is important to foresee the future development of ash. LÄS MER
5. Långsiktiga effekter av askåterföring och kvävegödsling på skogsmarkvegetationens sammansättning
Kandidat-uppsats, SLU/Dept. of EcologySammanfattning : Application of wood ash in forests is a method used to return (recycle) nutrients to the forest that is lost after forest harvesting. There are concerns that such application may influence pants and induce changes in species composition of the ground vegetation. LÄS MER