Multifunctional evapotranspiration test pit underground concrete structure

The invention discloses a multifunctional evapotranspiration test pit underground concrete structure. The multifunctional evapotranspiration test pit underground concrete structure comprises a vertical corridor, a computer monitor room, an underground control hall, test pits, an underground observation gallery, a weighting type lysimeter system and an underground water supply and discharge system. The vertical corridor leads to the computer monitor room and the underground control hall. The computer monitor room is located at a half storey position of the vertical corridor, and the lower portion leads to the underground control hall. The underground observation gallery is connected with the underground control hall. The test pits are located on the two sides of the observation gallery. The weighing type lysimeter system is arranged at the tail end of the observation gallery. The multifunctional evapotranspiration test pit underground concrete structure is convenient to construct and reliable in performance, t