News

Ecology—When air becomes wood

ORNL FACE

Higher carbon dioxide levels caused 30 percent more wood growth in young forest stands across the temperate United States over a decade, according to an analysis led by Oak Ridge National Laboratory.

Modeling—Mapping Arctic vegetation

Researchers used machine learning methods to map vegetation communities in the Kougarok Watershed on the Seward Peninsula of Alaska.

A team of scientists led by Oak Ridge National Laboratory used machine learning methods to generate a high-resolution map of vegetation growing in the remote reaches of the Alaskan tundra.

Hotter temperatures extend growing season for peatland plants

SPRUCE experimental site

A futuristic experiment simulating warmer environmental conditions has shown that peatland vegetation responds to higher temperatures with an earlier and longer growth period. Researchers used direct observation and digital repeat photography to measure plant greenness over three years at the Spruce and Peatland Responses Under Changing Environments study, a unique ecosystem-scale experiment operated by DOE’s Oak Ridge National Laboratory.

Plants- Surviving the Heat

A study by Oak Ridge National Laboratory detailed the response and recovery of certain tree species after short-term, extreme weather events such as heat waves. Scientists exposed sets of four different saplings to dramatic temperature swings that peaked above 120 F, or around 50 C, in a climate-controlled test chamber.

Scientists project a drier Amazon and wetter Indonesia in the future

Climate models predict that an increase in greenhouse gases will dry out the Amazon rainforest in the future while causing wetter conditions in the woodlands of Africa and Indonesia.