Carbon dioxide exchange and temperature sensitivity of soil respiration along an elevation gradient in an arctic tundra ecosystem

• Published in: Geoderma Vol. 452; p. 117108
• Main Authors: Xu, Wenyi, Westergaard-Nielsen, Andreas, Michelsen, Anders, Lennart Ambus, Per
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.12.2024; Elsevier
• Subjects: air; altitude; ammonium; carbon; carbon dioxide; climate change; Ecosystem respiration; ecosystems; Greenland; Gross ecosystem production; gross primary productivity; Markvetenskap; microclimate; Moisture sensitivity; Net ecosystem exchange; soil nutrient dynamics; Soil nutrients; soil respiration; Soil Science; soil water; temperature; Temperature sensitivity; total nitrogen; tundra; Greenland; Net ecosystem exchange; Soil nutrients; Temperature sensitivity; Gross ecosystem production; Ecosystem respiration; Moisture sensitivity

•There was no temperature gradient along 9–387 m elevation gradient in arctic tundra.•Topography aspect-induced soil microclimate differences drove ecosystem CO2 exchange.•Temperature sensitivity of soil respiration above 0 °C increased with elevation.•Elevation did not regulate temperature sensitiv...