This event has been postponed due to COVID-19. We will share updated event details as we have them. Do you make art about science, climate, or the environment? Do you have science stories to share? Submit your artwork to be showcased in a night of science art and story. The […]
Ongoing permafrost thaw is expected to stimulate microbial release of greenhouse gases, threatening to further exacerbate climate change (cause positive feedback). In this study, a unique field warming experiment was conducted in Interior Alaska to promote surface permafrost degradation while maintaining uniform hydraulic conditions. After 5 winters of experimental warming […]
The dynamics of soil phosphorus (P) control its bioavailability. Yet it remains a challenge to quantify soil P dynamics. Here we developed a soil P dynamics (SPD) model. We then assimilated eight data sets of 426-day changes in Hedley P fractions into the SPD model, to quantify the dynamics of […]
Plant species are characterized along a spectrum of isohydry to anisohydry depending on their regulation of water potential (?), but the plasticity of hydraulic strategies is largely unknown. The role of environmental drivers was evaluated in the hydraulic behavior of Larrea tridentata, a drought-tolerant desert shrub that withstands a wide […]
NAU joins with ASU, UA and Arizona communities to confront climate crisis As Arizona confronts the impacts of a hotter world, Northern Arizona University is joining partners from Arizona State University, the University of Arizona and communities from throughout the state to convene the first statewide, solutions-focused climate summit. Climate […]
Wired red oak is first of its kind in North America. As trees across the U.S. continue their picturesque march toward autumn, one 100-year-old oak tree in Massachusetts is attracting a crowd of admirers online. The tree is a scientific wonder—not because of its unique looks or a special way […]
Ecoss’ Bruce Hungate and Victor Leshyk co-authored a study on the “CO2 fertilization effect”. The study was led by César Terrer and Rob Jackson and published in Nature Climate Change. Although excessive CO2 often harms forests by warming the planet, making droughts more severe and insect pests more abundant, CO2 […]
The continuous increase of nitrogen (N) deposition may exacerbate phosphorus (P) deficiency, which affects soil organic carbon (SOC) decomposition by changing microbial community characteristics in subtropical forests with highly weathered soils. However, there is currently little information about the role of P and the N × P interaction in SOC dynamics. Here, […]
“Today I am taking the flux puppy for a walk at @HarvardForest to measure stem respiration,” NAU postdoctoral researcher Tim Rademacher recently tweeted. With it, a photo of a small white chamber fastened to a tree trunk (think half Dixie cup, half electrode) and hooked at the other end to […]
The effect of rain on the phyllosphere community has not been extensively explored, especially in the context of spatial variation on the impact of rain throughout the tree canopy. We characterized the response of the phyllosphere bacterial community removed from leaf surfaces of the Southern Magnolia (Magnolia grandiflora) to rain […]