GAEZ Dryland agro-climatic potential yields
Parameter
Maximum potential yield under optimal agro-climatic conditions.
Measured in Dry Weight per hectare DW/ha.
Commodities available
Wetland Rice
Dryland Rice
Wheat
Maize
Description
Crop cultivation potential describes the agronomically possible upper limit to produce individual crops under given agro-climatic, soil and terrain conditions and applying specific management assumptions and agronomic input levels. Soil moisture conditions together with other climate characteristics (radiation and temperature) during different crop development stages are used in an eco-physiological crop growth model to calculate potential biomass production and yield. The constraint-free crop yields calculated in the AEZ biomass model reflect yield potentials with regard to temperature and radiation regimes prevailing in each grid-cell. Maximum biomass and yields depend on the timing of the crop growth cycle (crop calendar) and are separately calculated for irrigated and rain-fed conditions. Crop specific requirements are matched with temperature regimes prevailing in individual grid-cells. Matching is tested for the full range of possible starting dates. For rain-fed conditions the crop calendar resulting in the highest expected (water-limited) yield is selected to represent maximum biomass and agro-climatic potential yield of the respective crop in a particular grid-cell. The estimation of yield losses due to water stress is based on crop-specific water balances. Yield estimation for irrigation conditions assumes that irrigation is scheduled such that no yield-reducing crop water deficits occur during the crop growth cycle. Theme 3 provides crop-wise information about: (1) Agro-Climatic Yield, (2) Constraint Factors, (3) Growth Cycle Attributes, and (4) Land Utilization Types (LUT) Selection.
Food and Agriculture Organization of the United Nations (FAO)
Source data
Food and Agriculture Organization of the United Nations (FAO)
Description
The Agro-Ecological Zones (AEZ) framework, developed by the FAO and IIASA, assesses natural resources to determine suitable agricultural land use options. Using plant eco-physiological characteristics, climate, and soil data, AEZ evaluates crop suitability and production potential under specific conditions. This framework aids in making sustainable, resilient, and productive agricultural decisions, supporting United Nations Sustainable Development Goals (SDGs) by providing insights into agricultural production, irrigation needs, and crop adaptation options.
Spatial resolution
Global coverage
Pixel size:
1km x 1km
Temporal resolution
Time periods:
1981-2010
2011-2040
2041-2070
2071-2100