Sökning: "GPP"
Visar resultat 21 - 25 av 48 uppsatser innehållade ordet GPP.
21. Comparison of soil CO2 efflux between different surface covers on a clear-cut and forest stand in southern Sweden, Hyltemossa
Kandidat-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapSammanfattning : Large amounts of carbon in the terrestrial biosphere are stored in forest ecosystems and its soil. Once the forest ecosystem is disturbed the release of this carbon can drive positive feedback to global warming. Humans impact the forest ecosystem through clear-cutting for wood production and other commercial purposes. LÄS MER
22. Kolbalanser i boreal skog : Hur skog ska skötas för störst klimatnytta samt missuppfattningar hos elever gällande kolets kretslopp.
Kandidat-uppsats, Linköpings universitet/BiologiSammanfattning : Koldioxidhalterna stiger i världen, vilket bidrar till global uppvärmning. Skogen har en viktig roll i klimatarbetet då stora mängder kol finns lagrad i skog och mark. Speciellt mycket kol finns i boreal skog, som bland annat finns i norra Sverige. LÄS MER
23. Implications of a dynamic vertical root distribution for modelled water and carbon fluxes across selected ecosystems : incorporating a novel rooting scheme into LPJ-GUESS
Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapSammanfattning : Roots play a key role in terrestrial carbon and water cycles, and therefore for the global climate system. They mediate plant evapotranspiration, influence photosynthetic processes and are responsible for atmospheric carbon transport into the pedosphere. Fine roots, in particular, are chiefly regulating water and nutrient uptake. LÄS MER
24. Modelling global Gross Primary Production using the correlation between key leaf traits
Kandidat-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapSammanfattning : Sophisticated ecosystem models make it possible to evaluate the potential future changes of the carbon sequestration capacity of the terrestrial biosphere, as a response to the rapid environmental and climatic changes. Accuracy of model estimates is however strongly dependent on the parametrisation of driving parameters. LÄS MER
25. Improvement of the GPP estimations for Sudan using the evaporative fraction as water stress factor
Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapSammanfattning : Estimation of GPP in Sudan using the evaporative fraction as water stress factor The Gross Primary Production "GPP" quantifies the amount of carbon entering an ecosystem. It is an ecosystem service since it is a source of energy for all organisms and it is estimated to reduce atmospheric CO2 in about 123 Pg C per year at the global scale. LÄS MER
