Policy strategies to address sustainability of Alaskan boreal forests in response to a directionally changing climate.

Charcoal Reflectance Reveals Early Holocene Boreal Deciduous Forests Burned at High Intensities

Wildfire size, frequency, and severity are increasing in the Alaskan boreal forest in response to climate warming. One of the potential impacts of this changing fire regime is the alteration of successional trajectories, from black spruce to mixed stands dominated by aspen, a vegetation composition not experienced since the early Holocene. Such changes in vegetation composition may consequently...

Sustainability, Sustainable Livelihoods, Climate Risks, Small Scale -Farming

Farmers frequently cope with risks due to the uncertainty of climatic conditions. Population growth, changes in agricultural policies, environmental regulations and the degradation of natural resources such as soil and water also present farmers with numerous challenges. Although farmers have experience in coping with a certain degree of uncertainty, increased climate variability and changes ma...

6 . Boreal Forest

The boreal forest biome occupies 13 x I06km1. It comprises approximately 25% of the world's forest land (Olson et al. 1983; Apps et al. 1993) and includes 2.6 x 106km1 of peatlands (Gorham 1991). Changes in the extent or functioning of the boreal forest wuld substantially modify global climate through (1) release of its large stocks of soil carbon (Post et al. Boreal forests have also been impl...

Utilizing boreal forests for climate mitigation - at what cost? A Fuzzy Cognitive Mapping approach connecting the Paris Agreement to the sustainability of reindeer grazing

Net emissions of CH4 and CO2 in Alaska: implications for the region's greenhouse gas budget.

We used a biogeochemistry model, the Terrestrial Ecosystem Model (TEM), to study the net methane (CH4) fluxes between Alaskan ecosystems and the atmosphere. We estimated that the current net emissions of CH4 (emissions minus consumption) from Alaskan soils are approximately 3 Tg CH4/yr. Wet tundra ecosystems are responsible for 75% of the region's net emissions, while dry tundra and upland bore...