Sökning: "digital soil mapping"
Visar resultat 1 - 5 av 9 avhandlingar innehållade orden digital soil mapping.
1. High-resolution mapping and spatial variability of soil organic carbon storage in permafrost environments
Sammanfattning : Large amounts of carbon are stored in soils of the northern circumpolar permafrost region. High-resolution mapping of this soil organic carbon (SOC) is important to better understand and predict local to global scale carbon dynamics. LÄS MER
2. Digital wet areas mapping
Sammanfattning : Wet soil in forested landscapes of the boreal zone is often associated with large open wetlands or peatlands, but it may also be hidden beneath closed forest canopies on drained wetlands or wet strips beside streams known as riparian zones. Since these wet areas are shrouded by canopy they have traditionally been difficult to map from aerial photographs. LÄS MER
3. Digital soil mapping and portable X-ray fluorescence prediction of cadmium, copper and zinc concentrations as decision support for crop production
Sammanfattning : Trace element concentrations in agricultural soil are important for crop production. Certain trace elements, e.g. copper (Cu) and zinc (Zn), are essential for crops to complete their life cycle. LÄS MER
4. Hydrological Modelling, Topographical Influence and Yield Mapping in Precision Agriculture
Sammanfattning : The use of topographical data in hydrological and agricultural applications has increased with GPS data availability and the concept of precision agriculture. This thesis investigates the relationships between topography and in one case simulated soil moisture and in the other case yield. LÄS MER
5. High-resolution mapping of soil organic carbon storage and soil properties in Siberian periglacial terrain
Sammanfattning : In the past years considerable attention has been given to soil organic carbon (SOC) stored in permafrost-affected soils in periglacial terrain. Studies have shown that these soils store around half the global SOC pool, making them a key component of the global carbon cycle. LÄS MER