Explain the four different types of Drought.
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*Meteorological drought
Meteorological drought is defined on the basis of the degree of dryness, in comparison to a normal or average amount, and the duration of the dry period. Definitions of meteorological drought must be region-specific, since the atmospheric conditions that result in deficiencies of precipitation are highly region-specific.
*Agricultural drought
Agricultural drought links various characteristics of meteorological drought to agricultural impacts, focusing on precipitation shortages, differences between actual and potential evapotranspiration, soil-water deficits, reduced groundwater or reservoir levels, and so on. Plant water demand depends on prevailing weather conditions, biological characteristics of the specific plant, its stage of growth, and the physical and biological properties of the soil. A good definition of agricultural drought should account for the susceptibility of crops during different stages of crop development. Deficient topsoil moisture at planting may hinder germination, leading to low plant populations per hectare and a reduction of yield.
*Hydrological drought
Hydrological drought refers to a persistently low discharge and/or volume of water in streams and reservoirs, lasting months or years. Hydrological drought is a natural phenomenon, but it may be exacerbated by human activities. Hydrological droughts are usually related to meteorological droughts, and their recurrence interval varies accordingly. Changes in land use and land degradation can affect the magnitude and frequency of hydrological droughts.
*socioeconomic drought
Socioeconomic definitions of drought associate the supply and demand of some economic good with elements of meteorological, hydrological, and agricultural drought. It differs from the other types of drought in that its occurrence depends on the processes of supply and demand. The supply of many economic goods, such as water, forage, food grains, fish, and hydroelectric power, depends on the weather. Due to the natural variability of climate, water supply is ample in some years, but insufficient to meet human and environmental needs in other years.
Meteorological drought is defined on the basis of the degree of dryness, in comparison to a normal or average amount, and the duration of the dry period. Definitions of meteorological drought must be region-specific, since the atmospheric conditions that result in deficiencies of precipitation are highly region-specific.
*Agricultural drought
Agricultural drought links various characteristics of meteorological drought to agricultural impacts, focusing on precipitation shortages, differences between actual and potential evapotranspiration, soil-water deficits, reduced groundwater or reservoir levels, and so on. Plant water demand depends on prevailing weather conditions, biological characteristics of the specific plant, its stage of growth, and the physical and biological properties of the soil. A good definition of agricultural drought should account for the susceptibility of crops during different stages of crop development. Deficient topsoil moisture at planting may hinder germination, leading to low plant populations per hectare and a reduction of yield.
*Hydrological drought
Hydrological drought refers to a persistently low discharge and/or volume of water in streams and reservoirs, lasting months or years. Hydrological drought is a natural phenomenon, but it may be exacerbated by human activities. Hydrological droughts are usually related to meteorological droughts, and their recurrence interval varies accordingly. Changes in land use and land degradation can affect the magnitude and frequency of hydrological droughts.
*socioeconomic drought
Socioeconomic definitions of drought associate the supply and demand of some economic good with elements of meteorological, hydrological, and agricultural drought. It differs from the other types of drought in that its occurrence depends on the processes of supply and demand. The supply of many economic goods, such as water, forage, food grains, fish, and hydroelectric power, depends on the weather. Due to the natural variability of climate, water supply is ample in some years, but insufficient to meet human and environmental needs in other years.
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Drought➫ A natural disaster of below-average precipitation in a given region resulting in prolonged shortages in the water supply.
♦ When it occurs their food supply can shrink & their habitat can be damaged.
♦ A drought can last for months or years, or may be declared after as few as 15 days.
➧ Types 0f Drought are:-
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=⤵
[1] Meteorological Drought:-
❱ The magnitude of a precipitation shortfall & the duration of this shortfall event.
[2] Hydrological Drought:-
❱ The deficiencies in surface & sub-surface water supplies leading to a lack of water for normal & specific needs.
[3] Agricultural Drought
❱ The circumstances when soil moisture is insufficient & results in the lack of crop growth & production.
[4] Socio-Economic Drought:-
❱ The demand of some Economic good with elements of Meteorological, agricultural & Hydrological drought.
➧ Causes 0f Drought are:-
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=⤵
❱ Land & water temperatures cause drought.
❱ Air circulation & weather patterns also cause drought.
❱ Soil moisture levels also contribute to drought.
❱ It can also be a supply & demand of water issue.
➧ Effects 0f Drought are:-
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=⤵
❱ It affect crop production.
❱ It affect the ecology of the range.
❱ Food supply can shrink.
❱ Habitat can be damaged.
❱ Increase in disease in wild animals.
❱ It also impact the migration of people.
➧ Prevention 0f Drought are:-
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=⤵
❱ Use mulch to reduce evaporation.
❱ Till your soil so it absorbs more water.
❱ Use turf sparingly and only when necessary.
❱ Choose native plants that use less water.
❱ Raise the height of your lawnmower.
➧ Precautions 0f Drought are:-
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=⤵
❱ Avoid flushing the toilet unnecessarily.
❱ Avoid taking baths.
❱ Avoid letting the water run while brushing your teeth.
❱ Place a bucket in the shower to catch excess water for watering plants.
_________
Thanks...✊
✭✮ӇЄƦЄ ƖƧ ƳƠƲƦ ƛƝƧƜЄƦ✮✭
┗─━─━─━─━∞◆∞━─━─━─━─┛
Drought➫ A natural disaster of below-average precipitation in a given region resulting in prolonged shortages in the water supply.
♦ When it occurs their food supply can shrink & their habitat can be damaged.
♦ A drought can last for months or years, or may be declared after as few as 15 days.
➧ Types 0f Drought are:-
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=⤵
[1] Meteorological Drought:-
❱ The magnitude of a precipitation shortfall & the duration of this shortfall event.
[2] Hydrological Drought:-
❱ The deficiencies in surface & sub-surface water supplies leading to a lack of water for normal & specific needs.
[3] Agricultural Drought
❱ The circumstances when soil moisture is insufficient & results in the lack of crop growth & production.
[4] Socio-Economic Drought:-
❱ The demand of some Economic good with elements of Meteorological, agricultural & Hydrological drought.
➧ Causes 0f Drought are:-
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=⤵
❱ Land & water temperatures cause drought.
❱ Air circulation & weather patterns also cause drought.
❱ Soil moisture levels also contribute to drought.
❱ It can also be a supply & demand of water issue.
➧ Effects 0f Drought are:-
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=⤵
❱ It affect crop production.
❱ It affect the ecology of the range.
❱ Food supply can shrink.
❱ Habitat can be damaged.
❱ Increase in disease in wild animals.
❱ It also impact the migration of people.
➧ Prevention 0f Drought are:-
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=⤵
❱ Use mulch to reduce evaporation.
❱ Till your soil so it absorbs more water.
❱ Use turf sparingly and only when necessary.
❱ Choose native plants that use less water.
❱ Raise the height of your lawnmower.
➧ Precautions 0f Drought are:-
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=⤵
❱ Avoid flushing the toilet unnecessarily.
❱ Avoid taking baths.
❱ Avoid letting the water run while brushing your teeth.
❱ Place a bucket in the shower to catch excess water for watering plants.
_________
Thanks...✊
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