Paul J. Hanson

TL;DR: Results indicate that drought may alter the growth response, gas exchange and water relations of tree species growing in an elevated CO2 atmosphere and sugar maple may benefit the most (of the three species studied) from a CO2 - enriched atmosphere, but productivity gains will be limited if frequent drought is prevalent.

TL;DR: The fluorescent compound trisodium, 3-hydroxy-5,8,10-pyrenetrisulfonate (PTS) was used to quantify the apoplastic flux through red pine root systems-that portion of the total water flux reaching the xylem without ever crossing a semipermeable membrane.

TL;DR: This study studied how peatland fine roots respond to warming in a whole-ecosystem experiment, finding that drying of these typically water-saturated ecosystems can fuel a surprising burst in shrub belowground productivity, one possible mechanism explaining the “shrubification” of northern peatlands in response to global change.

TL;DR: In this paper, the authors explore relationships among key LSP dates at the start and end of the season captured by three remote sensing products (i.e., NDVI: Normalized Difference Vegetation Index; PI: Phenology Index; MODIS Land Cover Dynamics Product based on the Enhanced Vegetation index, EVI) over 19 deciduous broadleaf and mixed forest sites in the northern hemisphere for 2000-2012.

TL;DR: The results suggest that ecosystem responses are largely driven by surface peat, but that the vast C bank at depth in peatlands is responsive to prolonged warming.