Cinematic 8K 7680X4320 ProRes 422. Land levelling is a measure used in surface irrigation, such as basin and furrow irrigation. Tractor and laser farmland leveling control system. Field and land leveller. Land leveling machine. Aerial soil clay land earth territory ground foundation excavation site terrain smoothing out bad land water plane level slope gradient curve working machine plantation infield arable field reconstruction work laser measurement precision floor ground background backdrop groundwork stage land reclamation.