Sökning: "autochthonous"
Visar resultat 1 - 5 av 22 uppsatser innehållade ordet autochthonous.
1. “It’s a visceral connection” : young farmers processes of engagement in animal farming with autochthonous breeds
Master-uppsats, SLU/Dept. of Urban and Rural DevelopmentSammanfattning : Agroecosystems are valued by the provision of utilitarian services that satisfy human needs and by their non-utilitarian ascribed ecological, sociocultural or intrinsic values. Nowadays, a delicate situation of decrease of population and the fragile generational renewal comprises the risk of loss of cultural landscapes in many European rural communities. LÄS MER
2. Effects of melatonin and Single Layer Centrifugation on cryosurvival of ram semen samples
Master-uppsats, SLU/Dept. of Clinical SciencesSammanfattning : The composition of the ram sperm membrane renders it vulnerable to injury during cryopreservation. Production of reactive oxygen species, which are by-products of metabolism, increases during freezing and thawing, causing damage to sperm membranes and acrosomes as well as affecting mitochondrial activity. LÄS MER
3. Water quality and organic matter linkages in waters draining arable fields
Master-uppsats, SLU/Dept. of Soil and EnvironmentSammanfattning : This study investigated leaching of natural organic matter (NOM) in twelve Swedish arable fields with regards to the quality of dissolved organic matter (DOM) and particulate organic matter (POM), using Absorbance (UV-Vis) and fluorescence spectrometry (EEM). DOM is defined as organic matter (OM) 0.45 μm. LÄS MER
4. Odensjön - A new varved lake sediment record from southern Sweden
Master-uppsats, Lunds universitet/Geologiska institutionenSammanfattning : Annually laminated (varved) sediments provide opportunities to reconstruct climate change and human impact on the environment with high temporal resolution. Depending on the character of the varves, such sediments can provide insight into the delivery of both autochthonous and allochthonous material from the lake and its catch- ment and answer questions regarding both regional and local responses to climate- and land-use changes. LÄS MER
5. Hydrodynamic modelling of fate and transport of natural organic matter and per- and polyfluoroalkyl substances in Lake Ekoln
Master-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : Societies are facing great challenges with obtaining a good quality and quantity of drinking water in the context of climate change. Increases in natural organic matter (NOM) and per- and polyfluoroalkyl substances (PFAS) have been observed in lakes and drinking water the past years, which is of great concern for water treatment plants in Sweden. LÄS MER