Essays about: "high Arctic wetland"

Found 5 essays containing the words high Arctic wetland.

1. 1. 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

3. 2. Influence of permafrost disintegration on wetland carbon fluxes in Abisko, Sweden

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Aida Esmailzadeh Davani; [2021]
   Keywords : Physical Geography; Ecosystem Analysis; Permafrost; CH4 flux; CO2 flux; Abisko; Wetlands; Earth and Environmental Sciences;

   Abstract : The northern permafrost regions are experiencing a rapid warming as surface temperatures are rising, causing a disintegration of permafrost and a deepening of the active layer (AL). This releases previously frozen carbon, making it available for decomposition by microbes. READ MORE

4. 3. Analysis of the global ESA GlobPermafrost map for Scandinavia

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Nina Nesterova; [2018]
   Keywords : Physical Geography and Ecosystem analysis; Arctic; permafrost; permafrost modeling; TTOP; CryoGRID 1; GlobPermafrost; Scandinavia; Earth and Environmental Sciences;

   Abstract : Due to its high vulnerability, permafrost is one of the key features studied in the field of climate change impacts. Permafrost is widespread in the Arctic region. READ MORE

5. 4. Shifts within the carbon cycle in response to the absence of keystone herbivore Ovibos moschatus in a high arctic mire

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Joel White; [2017]
   Keywords : vegetation; carbon; wetland.; methane; Arctic; Physical Geography Ecosystem Science; herbivory; Earth and Environmental Sciences;

   Abstract : Tundra ecosystems are generally recognized as globally important carbon sinks, yet the knowledge on threats to such ecosystems is narrow. Climate change is predicted to reduce the number of muskox (Ovibos moschatus) in the arctic, it is therefore essential to understand the effect herbivores induce on the arctic ecosystem. READ MORE

6. 5. Modelling vegetation dynamics and carbon fluxes in a high Arctic mire

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Laura Reinelt; [2015]
   Keywords : methane dynamics; biogeochemical cycling; vegetation dynamics; ecosystem modelling; LPJ-GUESS; geography; physical geography; high Arctic wetland; Zackenberg; Earth and Environmental Sciences;

   Abstract : High Arctic wetlands are an important component of the global climate system. Nevertheless estimations of their expected response to climate change and associated climate-feedbacks have large uncertainties. Improving models for vegetation and carbon dynamics of ecosystems is an important step towards making predictions more accurate. READ MORE