Sökning: "intensive forestry"
Visar resultat 41 - 45 av 52 avhandlingar innehållade orden intensive forestry.
41. Data driven crop disease modeling
Sammanfattning : The concept of precision farming deals with the creation and use of data from machinery and sensors on and off the field to optimize resources and sustainably intensify food production to keep up with increasing demand. However, in the face of a growing amount of data being collected, smarter data processing and analysis techniques are needed and have prompted the evaluation and incorporation of artificial intelligence (AI) and machine learning (ML) techniques for multiple use cases right from seeding to harvesting. LÄS MER
42. Evaluation of locally available feed resources for Nile tilapia (Oreochromis niloticus) in Rwanda
Sammanfattning : Aquaculture was introduced in Rwanda in the 1940s as an extensive pond-based system but the sector has gained in popularity during the past two decades, resulting in greater numbers of fish ponds and a corresponding increase in demand for quality fish feeds for sustainable aquaculture production. The aim of this thesis was to identify, sample and evaluate the nutritive value of some locally available feed ingredients that could be used by fish farmers producing Nile tilapia. LÄS MER
43. Cyclic voles and Puumala hantavirus in a changing boreal landscape
Sammanfattning : Land-use change is causing extinction of species globally, while also increasing the risk of disease exposure to humans through augmented interactions with wildlife, when humans live and work in manipulated ecosystems or when animals seek shelter/refuge in man-made infrastructure. Forestry is one such activity, which is continually altering forest structure worldwide, causing habitat loss for many specialized forest species. LÄS MER
44. Modelling trade-offs between forest bioenergy and biodiversity
Sammanfattning : Globally, biodiversity is declining due to loss, fragmentation and degradation of habitat, which undermines ecosystem functioning and therefore threatens also the ability of ecosystems to supply ecosystem services. Moreover, there is a need for adapting to climate change as well as securing the supply of energy, which have led to a shift in energy consumption from fossil fuel to renewables, especially biomass, which in turn put increasing pressure on ecosystems and biodiversity. LÄS MER
45. Forests, farmers and the state : environmentalism and resistance in northeastern Thailand
Sammanfattning : The Isan farmers in Ubonratchatani province of Northeast Thailand employ Buddhist as well as modernist environmental arguments to resist the spread of commercial eucalyptus plantations carried out by the state. Villagers affected by the consequences of commercial forestry have made a metaphorical link between eucalyptus, destructive exploitation and coercive power. LÄS MER
