Sökning: "ecology and economy"
Visar resultat 1 - 5 av 51 avhandlingar innehållade orden ecology and economy.
1. The nitrogen economy of mountain birch : As related to environmental conditions and genotype
Sammanfattning : Responses of mountain birch growth to changed environmental conditions arestrongly affected by birch genotype, and nitrogen economy is a key factor influencingthe winter survival of first-year seedlings. These are some of the findings of a series ofstudies, in which growth, nitrogen economy and winter survival were analysed usingpot-grown seedlings of mountain birch (Betula pubescens ssp. LÄS MER
2. Sphagnum limits : Physiology, morphology and climate
Sammanfattning : Sphagnum is the most important plant genus in terms of terrestrial carbon cycling. It and the habitats it creates store an equivalent of ~68% of the CO2 in the atmosphere. The genus has little dispersal limitation and the mire habitats are functionally similar at global scales. LÄS MER
3. Operationalizing Industrial Ecology in the Waste Sector : Roles and tactics for circular value innovation
Sammanfattning : The take-make-waste approach to resource management in human production and consumption systems is contributing to a variety of environmental and social problems worldwide. Additionally, as the world’s population and affluence increase, so do the negative impacts of poor resource management. LÄS MER
4. Growth and nitrogen economy of cereal-legume sole- and intercrops, and their effects on weed suppression
Sammanfattning : Crop production currently faces the dilemma of using methods that increase crop yield but with adverse environmental effects, or attaining lower yields with less environmental impacts. Applying ecological principles has shown potential in finding a middle-ground of maintaining crop yield with less inputs. LÄS MER
5. Resource economy of carnivorous plants: Interactions between prey capture and plant performance in three subarctic Pinguicula species
Sammanfattning : In this thesis, I have studied in situ the resource economy of the three carnivorous plant species Pinguicula alpina, P. villosa and P. vulgaris in a subarctic environment. The prey capture varied among individual plants, years and species. LÄS MER
