In order to raise the gdp per capita, the united arab emirates (uae) has been

Diversifying its economy.

Oil has long been the primary economic engine of the United Arab Emirates economy.  But the UAE has been promoting tourism and developing other industries, in an effort to have a more balanced overall economic picture.

According to Forbes Magazine listings for 2017, the gross domestic product (GDP) per capita of the UAE is $37,600.   This compares to a GDP per capita of $57,500 for the United States.

These islands/chinampas then provided rich soil for crops with easy access to water. i hope this is correct, im so sorry if its not !