Essays about: "GPP"

Showing result 1 - 5 of 40 essays containing the word GPP.

1. 1. Do OTC warming effects on ecosystem processes depend on moss species identity, precipitation, and moss removal?

   University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

   Author : Alexina Brännlund; [2023]
   Keywords : Experimental warming; Subarctic tundra mosses; Productivity; Ecosystem respiration; Decomposition;

   Abstract : Long-term warming experiments in arctic tundra have resulted in reduced moss cover and increased vascular plant cover. As mosses have a major impact on microclimatic conditions, changes in community composition can potentially alter direct and indirect drivers of productivity and decomposition, which are low in arctic ecosystems. READ MORE

3. 2. Applying LPJ-GUESS on the Arctic: A model evaluation and benchmarking study

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Margot Jeanne Knapen; [2023]
   Keywords : Physical Geography and Ecosystem Analysis; LPJ-GUESS; Arctic; FLUXNET; Gross Primary Productivity; Ecosystem Respiration; Permafrost; Active Layer Thickness; Snow Depth; Earth and Environmental Sciences;

   Abstract : Warming in the Arctic occurs at a much higher rate than the global average, which has a considerable impact on the Arctic terrestrial carbon cycle. Permafrost thawing can release substantial amounts of carbon, whilst tundra shrubification and tree-line advance, on the other hand, may compensate for this. READ MORE

4. 3. Evaluation of the effect of conflict on fire and GPP in Ukraine

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Lilith Kastens; [2023]
   Keywords : Climate Change; Armed Conflict; Fire; GPP; Remote Sensing; Russia-Ukraine War; Earth and Environmental Sciences;

   Abstract : The war in Ukraine in 2022 has caused environmental damages on different scales which come with their own challenges. One of the factors that can cause environmental damage is vegetation fire. READ MORE

5. 4. Evaluating a new hydraulic implementation in LPJ-GUESS for three sites in north Europe

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Carl Holmquist; [2023]
   Keywords : Physical Geography and Ecosystem analysis; LPJ-GUESS; drought; sensitivity analysis; evapotranspiration; gross primary production; hydraulic parameters; boreal forest.; Earth and Environmental Sciences;

   Abstract : Drought is projected to increase in frequency and intensity and impacts trees with increased water stress and increased mortality rate. Water stresses can cause hydraulic failure-related mortality or carbon starvation due to tree species having different strategies to deal with water stresses. READ MORE

6. 5. A comparison of remote sensed semi-arid grassland vegetation anomalies detected using MODIS and Sentinel-3, with anomalies in ground-based eddy covariance flux measurements.

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Jason Craig Joubert; [2023]
   Keywords : Geography; GIS; Anomaly Detection; Remote Sensing; fAPAR; GDMP; GPP; MODIS; Sentinel-3; Earth and Environmental Sciences;

   Abstract : Remote sensed vegetation biophysical indicators are derived from various sensors and methods and contribute to the quantification of vegetation growth. They are used as inputs to early warning systems for crop yield estimation, thus improving crop management and food security. READ MORE