Editing Aridity (section)

{{Short description|Term for regions characterized by a severe lack of available water}}
{{Redirect2|Arid|Dry climate|an arid climate|Desert climate|the Belgian rock band|Arid (band)}}
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{{more footnotes|date=August 2018}}
[[File:1893 Arid regions of the western united states.jpg|right|220px|thumb|Arid regions of the Western United States as mapped in 1893]]

'''Aridity''' is the condition of geographical regions which make up approximately 43% of total global available land area, characterized by low annual precipitation, increased temperatures, and limited water availability.<ref>Dunkerley, David, (2020),The Ecohydrology of Desert Environments: What Makes it Distinctive?, Encyclopedia of the World's Biomes, ''Elsevier'', Pages 23-35, ISBN 9780128160978, https://doi.org/10.1016/B978-0-12-409548-9.11803-22.</ref><ref>FAO. Elaboración de un Programa Mundial Sobre Agricultura Sostenible en Zonas Áridas en Colaboración con el Marco Mundial Sobre la Escasez de Agua en la Agricultura en un Clima Cambiante. http://www.fao.org/3/nd412es/nd412es.pdf</ref><ref name="pa">Perez-Aguilar, L. Y., Plata-Rocha, W., Monjardin-Armenta, S. A., Franco-Ochoa, C., & Zambrano-Medina, Y. G. (2021). The Identification and Classification of Arid Zones through Multicriteria Evaluation and Geographic Information Systems—Case Study: Arid Regions of Northwest Mexico. ''ISPRS International Journal of Geo-Information'', ''10''(11), 720. https://doi.org/10.3390/ijgi10110720</ref><ref>Quichimbo, E.A.; Singer, M.B.; Cuthbert, M.O. Characterising Groundwater-Surface Water Interactions in Idealised Ephemeral Stream Systems. ''Hydrol. Process.'' 2020, ''34'', 3792–3806.  https://doi.org/10.1002/hyp.13847</ref> These areas tend to fall upon degraded soils, and their health and functioning are key necessities of regulating ecosystems’ atmospheric components.<ref>FAO. Secuestro de Carbono en Tierras Áridas. http://www.fao.org/3/Y5738s/Y5738s.pdf</ref><ref name="pa"/>