Sample collection equipment for grassland biodiversity research

The invention belongs to the technical field of sample collection, and particularly relates to sample collection equipment for grassland biodiversity research, which comprises a split box, an amphibious unit is arranged in a space on one side of the split box, an adjusting unit is arranged at an opening end of the split box, a soil unit is arranged in a space on one side in the split box, and a water body unit is arranged in a space on the other side in the split box; the main shaft is controlled through the hydraulic rod, the hydration cabin, the cyclization cabin, the conical surface column and the wall breaking rings are synchronously driven to move in the direction of the drilling ring, soil residues on the inner wall of the storage barrel are decomposed and crushed step by step through the wall breaking rings distributed progressively, the action difficulty between an angle shovel and the soil residues can be reduced, and the working efficiency is improved. And the service life of the angle shovel and th