Jason G. Vogel

TL;DR: In this article, the authors present an overview of the global permafrost C pool and of the processes that might transfer this C into the atmosphere, as well as the associated ecosystem changes that occur with thawing.

TL;DR: Net ecosystem carbon exchange and the radiocarbon age of ecosystem respiration in a tundra landscape undergoing permafrost thaw is measured to determine the influence of old carbon loss on ecosystem carbon balance and it is found that areas that thawed over the past 15 years had 40 per cent more annual losses than minimally thawed areas, but had overall net ecosystem carbon uptake as increased plant growth offset these losses.

TL;DR: In this article, the authors characterize the carbon (C) content, leaf area index, and aboveground net primary production (ANPP) for mature aspen, black spruce, and young and mature jack pine stands at the southern and northern Boreal Ecosystem-Atmosphere Study (BOREAS) areas and compare carbon allocation coefficients for the major boreal forest types of the world.

TL;DR: The ratio of NPPFR to total detritus production was greater for evergreen forests than for deciduous forests, suggesting that carbon allocation patterns differ between boreal evergreen and decidical forests.

TL;DR: In this paper, the authors used a natural gradient approach with three sites to represent stages in the process of permafrost thawing and thermokarst and found that vascular plant biomass shifted from graminoid-dominated tundra in the least disturbed site to shrub-dominated Tundra at the oldest, most subsided site, whereas the intermediate site co-dominated by both plant functional groups.