Solar-energy-based saline-alkali soil salt pumping change-to-desalination irrigation and drainage coupling improvement device

The invention relates to the technical field of saline-alkali soil improvement devices, in particular to a solar-energy-based saline-alkali soil salt pumping change-to-desalination irrigation and drainage coupling improvement device. A management room is arranged above a water storage pool, and a control box and a membrane desalination device are arranged in the management room. A controller, a GPS positioning module, a memory, an operation panel, a display screen, an alarm module and a wireless communication module are arranged in the control box; the controller is respectively in electric control connection with the GPS positioning module, the memory, the operation panel, the display screen and the alarm module, and the controller is connected with a mobile terminal through the wirelesscommunication module; a solar photovoltaic assembly is fixed to the top wall of the management room through an installation base, a storage battery in the solar photovoltaic assembly is arranged in the control box, and the co