Which outcome of soil subsidence occurs in historic chinampa agricultural systems?

💡 Explanation

Increased flooding occurs because subsidence lowers the chinampas in relation to lake levels, so the system's original flood management based on relative elevation degrades; therefore periodic inundation, rather than controlled irrigation, occurs, rather than simple erosion.

• Which mechanism allowed Mayan architects to create corbelled arches without true keystones?
• Which navigational error increases when a tall ship relies solely on dead reckoning across ocean currents?
• Which consequence hindered large-scale mosaic production during the Byzantine era?
• Which consequence arises when ice lenses form within Roman aqueduct mortar?
• Which risk increased during 14th century Chinese mining when gunpowder replaced human labor?
• Which navigation error decreased dramatically when using Harrison's chronometers?