DROUGHTS 2
Droughts
Drought refers to a period of unusually dry weather adequately persistent for the shortage
of water to instigate severe hydrologic imbalance in the affected area. In other words, it is a
period of abnormally lengthy dry weather that continues long enough to cause serious
predicaments such as crop destruction and, or water supply scarcities. The intensity of the
drought is based upon the scale of moisture deficit, the spell, as well as the scope of the affected
area. Groundwater is principal during each hydrologic droughts, it may be a substitute or
complementary source of water at the time of surface-water drought if abundant groundwater
resources survive. Lowered groundwater levels due to drought or deepened pumping during
drought can lead to cut water levels and flows in streams, lakes, among other water reservoirs.
Typically, more than 50 percent of stream flow is supplied through groundwater. Groundwater is
the most important supply of water to wetlands and lakes, as well (Lazrus, 2016). Diminished
groundwater stream to surface waters may disturb aquatic ecosystems that depend on an
uninterrupted reserve for groundwater to support aquatic environments and stream flow. In
addition, cut heads in aquifers may cause land subsidence (Gomboš et al., 2018).
Desertification is when vegetation lands lay bare and unproductive, usually due to,
deforestation, overgrazing and other economic activity. Droughts make this progression more
badly and eradicate any prospects of the land recuperating. The condition and feature of
Freshwater Biomes including rivers and streams, lakes and ponds, marshlands are altered and
living organism in there are also in danger of extinction. Wildlife wanders long distances in
search of water. As a result, they reach new habitats, leaving them weak and in danger, times
others face new hazards. Climate change is a challenge threatening the board and re-
establishment of the Central Valley and bay-delta ecosystem. Prospect changes in the average
