Drought

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Agricultural

Refers to a period with declining soil moisture and consequent crop failure without any reference to surface water resources.

Source of definition
Mishra, Ashok K. Singh, Vijay P. (2010) A review of  drought concepts. Journal of Hydrology vol 391 202-216

Ecological

Where the shortage of water causes stress on ecosystems,
adversely affecting the life of some plants and animals but benefiting others.

Source of definition
LAKE, P. S., 2011. Drought and aquatic ecosystems: Effects and responses. John Wiley and Sons, Chichester.

Hydrological

Related to a period with inadequate surface and subsurface water resources for established water uses of a given water resources management system.

Source of definition
Mishra, Ashok K. Singh, Vijay P. (2010) A review of drought concepts. Journal of Hydrology vol 391 202-216

Meteorological

A lack of precipitation over a region for a period of time.

Source of definition
Mishra, Ashok K. Singh, Vijay P. (2010) A review of drought concepts. Journal of Hydrology vol 391 202-216

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