Does Diapirism Influence Greenhouse Gas Production on Patterned Ground in the High Arctic?

摘要: There are unusual patterns of greenhouse gas (GHG) net production in soil profiles Arctic polar deserts. These deserts include frost boils that symptomatic permafrost-associated soils. Some contain diapirs, intrusions recently thawed, carbon- and water-rich fine material pushed upward into the overlying active layer. Here we identified diapir-associated an desert had previously found to have highly variable GHG production, compared between diapir non-diapir boils. In addition, tested repeatability probes measurements if estimates diffusivity based on bulk density were accurate. Probes installed as including or not conducted over several days evaluate production. Soil deployed for longer than approximately 3 d showed loss signal, injection inert tracer, SF₆, validated our density. Diapir-associated reduced respiration with boils, despite these having increased organic matter content. Thus, simultaneously store greater amounts C reduce Differences quality and/or its interaction texture may be important control carbon storage