Climate-Driven Variability and Trends in Plant Productivity Over Recent Decades Based on Three Global Products.

ABSTRACT: Variability in climate exerts a strong influence on vegetation productivity (gross primary productivity; GPP), and therefore has a large impact on the land carbon sink. However, no direct observations of global GPP exist, and estimates rely on models that are constrained by observations at various spatial and temporal scales. Here, we assess the consistency in GPP from global products which extend for more than three decades; two observation-based approaches, the upscaling of FLUXNET site observations (FLUXCOM) and a remote sensing derived light use efficiency model (RS-LUE), and from a suite of terrestrial biosphere models (TRENDYv6). At local scales, we find high correlations in annual GPP among the products, with exceptions in tropical and high northern latitudes. On longer time scales,

SUBMITTER: O'Sullivan M 

PROVIDER: S-EPMC7757257 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature