The Guadalquivir Marshes (in Spanish : Marismas del Guadalquivir or simply Las Marismas ) are a natural region of marshy lowlands on the lower Guadalquivir River .
5-535: The Las Marismas zone forms a large part of the province of Huelva , province of Seville and province of Cádiz in Andalucia , Spain . The area includes parts of the municipalities of Isla Mayor , Los Palacios y Villafranca , La Puebla del Río , Utrera , Las Cabezas de San Juan and Lebrija . Rice farming in this area produces 40% of Spain's national crop. Some areas are protected for wildlife and habitat, including dunes. Approximately two millennia ago
10-607: A buffer zone between the human settlements of the Guadalquivir region and Doñana National Park , a protected area of marshland , streams , and sand dunes . The National Park was established in 1969 as a nature reserve when the World Wildlife Fund joined forces with the Spanish Government to purchase a substantial part of the local wetlands in order to preserve them. The Las Marismas area
15-589: Is a Spanish noble title named after the area; this noble title was created by Royal Decree of King Ferdinand VII in 1829 for Alejandro María Aguado y Ramírez de Estenoz . In the early 21st century, the Guadalquivir wetland region's main economic activity is agriculture , specialising in the cultivation of rice . An area of about 400 km is devoted to rice farming . It has an annual output of about 310,000 metric tonnes, equating to approximately 40% of Spain's rice production. The wetland zone acts as
20-543: Is home to a large number of wildlife species. Commonly seen terrestrial animals include deer , lynx , and wild boars . Notable avian species include vultures , flamingos , herons , spoonbills , and ducks . The rare Spanish imperial eagle lives here, whose population is considered vulnerable by the International Union for Conservation of Nature . This article about a location in Andalusia, Spain,
25-641: The wetlands comprised a large lagoon and estuary , known as Lacus Ligustinus in Latin, leading to the Guadalquivir River mouth with some sand bars to the South. Over time the lake silted up, gradually transforming into marshland . This silt has formed into a barrier of dunes extending approximately 70 kilometres (43 mi) along the coast, known as Arenas Gordas (English: "the fat sands"). The marquessate de las Marismas del Guadalquivir
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