Yongwon Kim

TL;DR: In this paper, the authors synthesize regional in situ observations of CO2 flux from Arctic and boreal soils to assess current and future winter carbon losses from the northern permafrost domain.

TL;DR: In this article, a new ecosystem model framework, the dynamic organic soil version of the Terrestrial Ecosystem Model, was proposed for simulating soil thermal and hydrological dynamics within soil profiles that contain a live moss horizon, fibrous and amorphous organic horizons and mineral soil horizons.

TL;DR: In this article, an analysis of eddy covariance and chamber measurements of CH4 efflux and supporting environmental variables during the autumn season and associated beginning of soil freeze-up at a large-scale water manipulation site near Barrow, Alaska (the Biocomplexity Experiment).

TL;DR: Investigating the bacterial and archaeal communities along depth profiles of four soil cores collected across Alaska found significant positive correlations between methane trapped in cores and relative abundance of methanogenic Archaeal genera, indicating a strong association between microbial activity and methane production in subsurface soils.

TL;DR: In this article, the authors estimate the winter fluxes of CO 2 and CH 4 using the concentration profile method and the chamber method in black spruce forest soils in central Alaska during the winter of 2004/5.