[[Image:In situ - rainwater harvesting.jpg|thumb|right|200px|In situ rainwater harvesting in Jodhpur, Rajasthan. Photo: [http://www.retailforsure.com/www/photogallery.php Greenfield Eco Solutions Pvt. Ltd]]]
In arid and En las regiones áridas y semi-arid regionsáridas, where precipitation is low or infrequent during the dry seasondonde la precipitación es escasa o poco frecuente durante la temporada de sequía, it is necessary to store the maximum amount of rainwater during the wet season for use at a later timees necesario almacenar la mayor cantidad de agua de lluvia posible durante la temporada húmeda para poder usarla en el futuro, especially for agricultural and domestic water supplyen especial con fines agrícolas o para suministro de agua doméstica. One of the methods frequently used in rainwater harvesting is the storage of rainwater Uno de los métodos utilizados con mayor frecuencia en la captación de agua de lluvia es el almacenamiento de agua de lluvia '''in situ'''. Topographically low areas are ideal sites for Las áreas topográficamente bajas son sitios ideales para la captación de agua de lluvia in situ harvesting of rainfall. This technique has been used in the arid and Esta técnica ha sido utilizada en regiones áridas y semi-arid regions of northeastern Braziláridas en el noreste de Brasil, Argentina, and y Paraguay, primarily for irrigation purposesprincipalmente para la irrigación. The La tecnología in situ technology consists of making storage available in areas where the water is going to be utilizedconsiste en la disponibilidad de almacenamiento en áreas donde será utilizada el agua.
Generally this technology is simple and easy to use. Governmental organizations and the agricultural community generally work together to support and promote the in situ rainwater storage. Educational and information programs should be provided to inform users of the benefits of this technology, and the means of implementing rainwater harvesting while preventing soil loss.
