Water footprints and crop water use of 175 individual crops for 1990-2019 simulated with a global crop model.

ABSTRACT: The water footprint of a crop (WF) is a common metric for assessing agricultural water consumption and productivity. To provide an update and methodological enhancement of existing WF datasets, we apply a global process-based crop model to quantify consumptive WFs of 175 individual crops at a 5 arcminute resolution over the 1990-2019 period. This model simulates the daily crop growth and vertical water balance considering local environmental conditions, crop characteristics, and farm management. We partition WFs into green (water from precipitation) and blue (from irrigation or capillary rise), and differentiate between rainfed and irrigated production systems. The outputs include gridded datasets and national averages for unit water footprints (expressed in m³ t^-1 yr

SUBMITTER: Mialyk O 

PROVIDER: S-EPMC10866886 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature