These remaining chinampas are part of the Xochimilco World Heritage Site. Have since changed use and become residences and businesses. Those that remain agricultural are mostly used as nurseries, growing ornamental plants such as bougainvilleas, cactuses, dahlias, day lilies, and even bonsai. As they can produce up to eight times the amount of conventional land, they are still an important part of the borough's agricultural production. There have been various attempts to save the remaining chinampas, including their cataloging by UNESCO, UAM, and INAH in 2005, and various reforestation efforts, especially of juniper trees.