Sökning: "Soil respiration"
Visar resultat 6 - 10 av 58 avhandlingar innehållade orden Soil respiration.
6. Novel approaches in modeling of soil carbon : Upscaling theories and energetics
Sammanfattning : Soils contain more carbon (C) than terrestrial (above ground) and atmospheric carbon combined. Mismanagement of soil C could lead to increased greenhouse gas emissions, whereas practices leading to increased C storage would help mitigate climate change while improving soil fertility and ecological functions. LÄS MER
7. Effects of heavy metal contamination on carbon and nitrogen cycling : An ecological approach to assess risks to soil functions
Sammanfattning : Soil contamination with heavy metals may disrupt soil microorganisms with important roles in carbon (C) and nitrogen (N) cycling. However, there is a lack of understanding on how microorganisms are affected in soil, which may lead to a mismatch when assessing risks of contaminants to field soils. LÄS MER
8. Carbon stock and fluxes in Nyungwe forest and Ruhande Arboretum in Rwanda
Sammanfattning : Conservation and sequestration of carbon in forest ecosystems are potential strategies to reduce or stabilize the atmospheric greenhouse gas concentrations and mitigate climate change. Estimating the... LÄS MER
9. Modeling the Seasonality of Carbon, Evapotranspiration and Heat Processes for Cold Climate Conditions
Sammanfattning : The productivity of agricultural and forest ecosystems in regions at higher latitudes is to a large extent governed by low temperature and moisture conditions. Environmental conditions are acting both above- and below-ground and regulating carbon fluxes and evapotranspiration. LÄS MER
10. Microbial mobilization and immobilization of soil nitrogen
Sammanfattning : Microorganisms in forest ecosystems normally recycle nitrogen (N), such that gaseous losses and leaching are limited. Mobilization of organic N, including microbial N, and immobilization of inorganic N, especially NH4+, are the quantitatively most important N transformation processes. Various factors influence their rates, e.g. LÄS MER