agricultural drought

From Glossary of Meteorology
Conditions that result in adverse crop responses, usually because plants cannot meet potential transpiration as a result of high atmospheric demand and/or limited soil moisture.

Drought severity may be defined according to the Palmer Drought Severity Index or functionally expressed as yield-reducing water stress.


The evapotranspiration that would be achieved from a well-aerated soil/ plant surface at field water-holding capacity.

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