Essays about: "Gross Primary Productivity"

Showing result 1 - 5 of 13 essays containing the words Gross Primary Productivity.

1. 1. The impact of CO2 fertilisation on foliage in West and East Africa

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Gaetane Demyttenaere; [2023]
   Keywords : Physical geography and ecosystem analysis; CO2 fertilisation; semi-arid ecosystems; remote sensing; Normalised Difference Vegetation Index; Earth and Environmental Sciences;

   Abstract : Anthropogenic impact on terrestrial ecosystems continues to grow as we further enhance atmospheric Carbon Dioxide (CO₂) concentrations. The changing climatic conditions and direct influence of CO₂ on vegetation has a big impact on ecosystem functions. READ MORE

3. 2. 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

4. 3. 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

5. 4. 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

6. 5. Evaluation of the LPJ-GUESS crop model under ambient and elevated CO2 concentrations.

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Annika Nitschke; [2022]
   Keywords : LPJ-GUESS; free-air carbon dioxide enrichment experiments; elevated CO2; climate change; wheat yield; Earth and Environmental Sciences;

   Abstract : In the future atmospheric CO2 concentrations might exceed 550 ppm according to the RCP8.5 scenario by mid-century from our current 410 ppm, while our world population is projected to surpass the 9.7 billion threshold within the same time span. This challenge leads to the raising of questions addressing future food security. READ MORE