Publications by authors named "Malte S Jepsen"
Article Synopsis
- Climate change affects carbon pools in the Arctic tundra, and the study observed responses over nine years to increased snow depth and summer warming in West Greenland.
- Summer warming significantly boosted vegetation, particularly the shrub Betula nana, while snow addition negatively impacted this plant, and moss biomass also increased under warmer conditions.
- Results indicated that changes in rhizosphere soil characteristics were more pronounced than in bulk soil, with summer warming leading to increased organic carbon in the top soil layers, highlighting the complex interactions between plant growth and belowground carbon dynamics.
In the Arctic region, microbial degradation poses a significant threat to the preservation of archaeological deposits, actively consuming irreplaceable cultural and environmental records. In this study we assess the potential effects of the last 40 years of climate change on organic archaeological deposits within the UNESCO World Heritage area Kujataa in South Greenland. We use the dynamic process-oriented model, CoupModel to simulate soil temperatures and soil moisture contents at four archaeological sites in the area.
View Article and Find Full Text PDFIncreasing temperatures and winter precipitation can influence the carbon (C) exchange rates in arctic ecosystems. Feedbacks can be both positive and negative, but the net effects are unclear and expected to vary strongly across the Arctic. There is a lack of understanding of the combined effects of increased summer warming and winter precipitation on the C balance in these ecosystems.
View Article and Find Full Text PDF