Sökning: "photosynthetically active radiation"

Visar resultat 1 - 5 av 18 uppsatser innehållade orden photosynthetically active radiation.

1. 1. SHADING ANALYSIS OF AGRIVOLTAIC SYSTEMS : The shading’s effect on lettuce and potato from elevated agrivoltaic system in Sweden

   Master-uppsats, Mälardalens högskola/Framtidens energi

   Författare :Komail Farid; Ahmad Guleed; [2023]
   Nyckelord :photosynthetically active radiation; agrivoltaic system; elevated system; crop yield; agriculture; shade tolerance crop; shading factor; PVsyst;

   Sammanfattning : The world is progressing towards a more sustainable society, where renewable energy sources, including solar energy, play a crucial role. This study aims to address the conflict between agriculture and energy production by exploring the installation of solar panels on farmland. LÄS MER

3. 2. Modelling the growth of Pinus sylvestris L. monocultures in Sweden depending on the absorbed light

   Master-uppsats, SLU/Southern Swedish Forest Research Centre

   Författare :Mateusz Grzeszkiewicz; [2022]
   Nyckelord :climate change; forest modelling; light use efficiency; photosynthetically active radiation; Scots pine;

   Sammanfattning : Stand growth models are an important aid in contemporary sustainable forest management as a major planning and decision-making tool. However, climate change influencing growth conditions worldwide is a challenge to commonly used empirical models as they do not provide enough flexibility, which can result in inaccurate predictions and thus wrong decisions and sub-optimal results. LÄS MER

4. 3. Hydrodynamic modelling of fate and transport of natural organic matter and per- and polyfluoroalkyl substances in Lake Ekoln

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Frida Ekman; [2021]
   Nyckelord :Ekoln; Natural organic matter NOM ; Total organic matter TOC ; Colour; degradation; sedimentation; photooxidation; PFAS; MIKE 3 FM; Ekoln; naturligt organiskt material NOM ; totalt organiskt kol TOC ; färg; nedbrytning; sedimentation; foto-oxidation; PFAS; MIKE 3 FM;

   Sammanfattning : 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

5. 4. 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 ekosystemvetenskap

   Författare :Pamela Huskin Okinedo; [2020]
   Nyckelord :Soil CO2 efflux; Soil respiration; Soil moisture; Soil temperature; Clear-cut; Forest stand; Net ecosystem exchange; Photosynthetically active radiation; Carbon.; Earth and Environmental Sciences;

   Sammanfattning : 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

7. 5. Improvement of the GPP estimations for Sudan using the evaporative fraction as water stress factor

   Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Författare :Maria Angela Dissegna; [2016]
   Nyckelord :semi-arid regions; light use efficiency models; evaporative fraction; gross primary production; Physical Geography and Ecosystem analysis; GEM; Earth and Environmental Sciences;

   Sammanfattning : 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