Sökning: "restoration fire"
Visar resultat 1 - 5 av 7 avhandlingar innehållade orden restoration fire.
1. Colonization Patterns of Wood-inhabiting Fungi in Boreal Forest
Sammanfattning : Forest management practices have changed the over-all structure of the Fennoscandian forest landscape resulting in a lack of suitable substrates for many wood-inhabiting species. The objectives of this thesis was to describe the colonization patterns of wood-inhabiting fungi, including the potential role of beetles as dispersal vectors, on different types of dead wood substrate and assess the importance of active measures in the forest landscape in order to restore biodiversity i. LÄS MER
2. Plant ecological studies related to restoration of a degraded ecosystem in central Tanzania
Sammanfattning : Kondoa Irangi area is among the most degraded ecosystems in Central Tanzania as a result of heavygrazing, fire, collection of fuelwood and improper cultivation practices. The restoration process of thisdegraded ecosystem through natural regeneration is slowed by the semi-arid climate of the area combinedwith poor soil nutrient status. LÄS MER
3. Fire, people and reindeer in the boreal forest : the role of fire in the historical and contemporary interactions between Sami reindeer herding and forest management in northern Sweden
Sammanfattning : In the boreal forest of northern Sweden, fire was used from around 1920 to 1970 as a forest regeneration measure, and then abandoned for some decades. Since the 1990s, fire restoration has been carried out through regeneration and conservation burning in commercial and protected forests. LÄS MER
4. Seed dynamics and the ecological restoration of hill slopes of Kondoa Irangi, Central Tanzania
Sammanfattning : Improper agricultural practices such as bill slope cultivation, extensive clearing of vegetation using fire over a long period, and to some extent overgrazing have converted the once fertile hill slopes of Kondoa Irangi in central Tanzania into unproductive marginal land. It is 25 years now since reclamation measures were introduced to save the hills from further degradation, but the regeneration process, has been rather slow. LÄS MER
5. No more water, but fire next time : The conflict between environmental aims and social claims in Louisiana's post-Katrina coastal planning
Sammanfattning : There are two levels to this thesis, the examination of the particular case and the exposition of the general approach. The case the thesis deals with is Louisiana’s coastal land-loss crisis and what can and should be done about it. LÄS MER