Exposures to temperature beyond threshold disproportionately reduce vegetation growth in the northern hemisphere.

ABSTRACT: In recent decades, terrestrial vegetation in the northern hemisphere (NH) has been exposed to warming and more extremely high temperatures. However, the consequences of these changes for terrestrial vegetation growth remain poorly quantified and understood. By examining a satellite-based vegetation index, tree-ring measurements and land-surface model simulations, we discovered a consistent convex pattern in the responses of vegetation growth to temperature exposure (TE) for forest, shrub and grass in both the temperate (30°-50° N) and boreal (50°-70° N) NH during the period of 1982-2012. The response of vegetation growth to TE for the three vegetation types in both the temperate and boreal NH increased convergently with increasing temperature, until vegetation type-dependent temperature th

SUBMITTER: Wu X 

PROVIDER: S-EPMC8291599 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature