The return of Aztec floating farms
bbc.com
bbc.com
An interesting fact is that the big freeways and streets, like the periférico, usually follow the exact path of the causeways built for Tenochtitlan.
The former lakebed is also significantly more susceptible to earthquake damage than the land that formed the original banks or islands.
No, they are not floating, yet this author uses this word to describe chinampas.
Anyway, as a side note, I would say that a “modern” technology that somewhat mimics this is aquaponics. This method can be very powerful as it feeds off stacking biodiversity, just like the chinampas.
Your aquaponics analogy is apt. The canals are periodically dredged for fish manure in addition to some fish and axolotl (salamander) harvesting. Compare the Incan soku kollu technique, which starts with land and digs irrigation canals close together in which fish such as talapia are raised and harvested. The water serves as thermal mass and the mist they emit during frost events protects the plants.