No growth stimulation of Canada's boreal forest under half-century of combined warming and CO2 fertilization.

ABSTRACT: Considerable evidence exists that current global temperatures are higher than at any time during the past millennium. However, the long-term impacts of rising temperatures and associated shifts in the hydrological cycle on the productivity of ecosystems remain poorly understood for mid to high northern latitudes. Here, we quantify species-specific spatiotemporal variability in terrestrial aboveground biomass stem growth across Canada's boreal forests from 1950 to the present. We use 873 newly developed tree-ring chronologies from Canada's National Forest Inventory, representing an unprecedented degree of sampling standardization for a large-scale dendrochronological study. We find significant regional- and species-related trends in growth, but the positive and negative trends compensate ea

SUBMITTER: Girardin MP 

PROVIDER: S-EPMC5206510 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature