Sökning: "aspen"
Visar resultat 1 - 5 av 109 avhandlingar innehållade ordet aspen.
1. Importance of tannins for responses of aspen to anthropogenic nitrogen enrichment
Sammanfattning : Boreal forests are often strongly nitrogen (N) limited. However, human activities are leading to increased N inputs into these ecosystems, through atmospheric N deposition and forest fertilization. LÄS MER
2. Embracing the data flood : integrating diverse data to improve phenotype association discovery in forest trees
Sammanfattning : Complex traits represent valuable research targets as many highly desirable properties of plants and animals (such as growth rate and height) fall into this group. However, associating biological markers with these traits is incredibly challenging, in part due to their small effect sizes. LÄS MER
3. Carbon allocation in aspen trees
Sammanfattning : Trees allocate assimilated carbon between growth and storage. In this PhD thesis, Iinvestigated the regulation of carbon allocation during tree growth both attranscriptional as well as whole-tree level, and with a focus on wood formation. LÄS MER
4. Deciduous tree occurrence and large herbivore browsing in multiscale perspectives
Sammanfattning : Aspen ( Populus tremula), rowan (Sorbus auquparia) and sallow (Salix caprea) are deciduous tree species of low economic value for forestry and contribute to biodiversity of boreal forests. The species are rare in managed forest landscapes, and severely browsed by moose. LÄS MER
5. Inorganic ions in wood chips- Leaching prior to Kraft pulping and effect of calcium on Kraft delignification
Sammanfattning : Wood is the main source of Non-Process Elements (NPEs), such as, calcium, potassium, manganese and chloride in Kraft pulp mills. Due to the recirculation of cooking chemicals and water, process disturbances related to the accumulation of NPEs in the process streams are inevitable. LÄS MER