Chinampa Floating-Field Agriculture

Timeline

1. c. 1500–1521Lake Texcoco · Valley of MexicoIn the early 16th century chinampas densely ringed Lake Texcoco and Lake Xochimilco; floating fields separated by canals yielded multiple annual crops of maize, beans, squash, and amaranth, supporting the vast urban population of Tenochtitlan.
2. c. 1550–1590Xochimilco · XochimilcoSpanish colonial authorities partially drained parts of Lake Texcoco; chinampa farmers retained and expanded floating fields in Xochimilco, switching to European-introduced fruit and vegetable varieties while maintaining traditional canal irrigation and manuring techniques.
3. c. 1591–1600Mexico City · Mexico CityIn the 1590s fresh vegetables, flowers, and medicinal plants from chinampas were transported by water into Mexico City's markets; the high yields of the floating fields made them the most important peri-urban agricultural technique of the valley under the colonial labor and tribute systems.
4. c. 1600–1650Xochimilco · XochimilcoIn the 17th century chinampas were jointly managed by communities and colonial landowners; canal maintenance and field expansion formed a replicable technical model, laying the foundation for the floating-field landscape preserved at the Xochimilco World Heritage site.