Height-measurable sampling frame for grassland monitoring

The utility model discloses a height-measurable sampling frame for grassland monitoring. The sampling frame comprises a sampling frame body, a sampling groove, a cutter, a stand column, a sliding groove and a sliding block, a sampling groove is formed in the sampling frame body; chutes are formed in the inner walls of the two sides of the sampling frame body; sliding blocks are mounted in the twosliding grooves in a sliding manner; rotating shafts are symmetrically mounted on the upper surfaces and the lower surfaces of the two sliding blocks; rollers are rotationally mounted on the outer walls of the rotating shafts; the outer walls of the rolling wheels are attached to the inner walls of the sliding grooves, limiting sleeves are installed at the ends, penetrating through openings of thesliding grooves, of the sliding blocks, a scale plate is movably connected between the inner walls of the two limiting sleeves in a clamped mode, stand columns are installed at the four corners of the lower surface of the sam