by ecos | May 10, 2016
The response of northern tundra plant communities to warming temperatures is of critical concern because permafrost ecosystems play a key role in global carbon (C) storage, and climate-induced ecological shifts in the plant community will affect the transfer of...
by ecos | May 9, 2016
Monsoon precipitation in the arid southwestern United States is an important driver of ecosystem productivity, delivering up to 50% of annual precipitation during the summer months. These sporadic rainfall events typify drying-rewetting cycles and impose a...
by ecos | May 2, 2016
Thawing permafrost represents a poorly understood feedback mechanism of climate change in the Arctic, but with a potential impact owing to stored carbon being mobilized1, 2, 3, 4, 5. We have quantified the long-term loss of carbon (C) from thawing permafrost in...
by ecos | Apr 26, 2016
Are tundra ecosystems currently a carbon source or sink? What is the future trajectory of tundra carbon fluxes in response to climate change? These questions are of global importance because of the vast quantities of organic carbon stored in permafrost soils. In this...
by ecos | Apr 21, 2016
We investigated the effect of CO2 concentration and soilnutrient availability during growth on the subsequent decomposition andnitrogen (N) release from litter of four annual grasses that differ inresource requirements and native habitat. Vulpia microstachys isa...
