Search for dissertations about: "Nutrient cycling"

Showing result 11 - 15 of 98 swedish dissertations containing the words Nutrient cycling.

  2. 11. Modeling nutrient cycling and sustainable forest growth in a changing world

    Author : Patrik Wallman; LUCSUS; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; nutrients; sustainability; ForSAFE; Chemical technology and engineering; forestry technology; forestry; Silviculture; system dynamics; forest growth models; dynamic modeling; Kemiteknik och kemisk teknologi; skogsbruk; skogsteknik; Skogsvetenskap;

    Abstract : It took 70-80 years to realize the width of the impact of industrialization on the forest ecosystems since a forest ecosystem is a "slow system" as seen from a human perspective. An anticipated future climate change and increasing carbon dioxide and ozone levels will change the conditions even more with time and the widely used statistical forest growth models will not be applicable anymore. READ MORE

  4. 12. Nutrient and energy sensing in skeletal muscle

    Author : Atul S Deshmukh; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Skeletal muscle; AMPK; mTOR; glucose metabolism; exercise; Akt; TBC1D1 D4; CaMK; NO-cGMP;

    Abstract : Nutrient overload and physical inactivity often leads to the development of obesity and type 2 diabetes. Acute over-nutrition can induce insulin resistance, while physical exercise enhances skeletal muscle insulin sensitivity. Like every living cell, skeletal muscle senses nutrient and energy signals and to adjust metabolic flux. READ MORE

  5. 13. Nutrient-regulated skeletal muscle metabolism and circadian clock

    Author : Laura Sardon Puig; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : The prevalence of obesity has tripled in the last four decades, becoming a major risk for the development of cardiometabolic diseases such as type 2 diabetes. Obesity is associated with pathological storage of lipids in skeletal muscle, causing a major disturbance in metabolism. READ MORE

  6. 14. The role of the hydrological cycle in forest ecosystems : flow path, nutrient cycling and water-carbon interaction

    Author : Yanzi Yan; MERGE: ModElling the Regional and Global Earth system; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; flow path; DOC concentration; groundwater; photosynthesis; Amazon rainforest; catchment geomorphology;

    Abstract : Forest ecosystems, covering over a third of land on the Earth, play a significant role in the global hydrological cycle, and influence soil erosion and climate change. However, the distribution, movements, quality of water, and hydrological processes in forested ecosystems are not well understood yet. READ MORE

  7. 15. Sulfur cycling in Swedish arable soils : a chemical perspective

    Author : Kristin Boye; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Sulfur (S) is an essential plant nutrient. Decreased S deposition in combination with a switch to high-analysis N/P-fertilizers has increased the need for S fertilization. Thus, soil research directed at understanding soil sulfur properties and processes has intensified. READ MORE