نوع مقاله : مروری
نویسنده
گروه محیط زیست، دانشکده انرژی و محیط زیست، دانشگاه آزاد واحد علوم تحقیقات
چکیده
چکیده تصویری
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کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسنده [English]
Drought is one of the environmental phenomena and an inseparable part of climate change. Drought causing water shortages may occur anywhere, but features and effects, such as intensity, duration and magnitude of droughts are different from one place to another. Unlike floods, drought phenomenon that is slowly creeping takeover of an environment and becomes a natural disaster. Drought can be classified as climate drought or meteorological, hydrological, agricultural, and socio-economic. Meteorological drought is the most important type of drought and occurs when rainfall is less than a threshold in a given time period. Drought can have an impact on livestock, forests and pastures, population and the environment. Weight loss of livestock, livestock production cuts, reduced reproduction and livestock susceptible to diseases of the drought on livestock are the consequences. Drought, in addition to the impact on the survival and rehabilitation of grasslands and forests, can increase the likelihood of fires in these areas. Reducing rainfall and water resources will also have a negative impact on the supply of drinking water, but also on natural ecosystems that are dependent on water resources. Therefore, if there is a monitoring system and meteorological forecast, and with the development and support of updated technologies, it is possible to reduce the amount of damage in different parts by making the necessary preparations.
کلیدواژهها [English]
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