The utility model relates to a device suitable for monitoring water and
soil loss in alpine and valley areas, and belongs to the technical field of water and
soil loss monitoring. Comprising a monitoring area, the two sides and the high-position side of the monitoring area are separated from the outside through baffles, a
precipitation tank is arranged on the low-position side of the monitoring area, the
precipitation tank is obliquely arranged, a water outlet is formed in the lowest point of the
precipitation tank, filter cloth is arranged on the water outlet, and the water outlet is connected with a collecting
barrel through a pipeline. The arrangement height of the collecting
barrel is lower than the height of the water outlet; a cover plate is arranged at the top of the precipitation tank, and a water inlet is formed in the side, close to the baffle, of the precipitation tank. According to the device, runoff and
silt generated in a monitoring area are guided into the precipitation tank, the
silt is deposited in the precipitation tank, and
water flow automatically flows to the collection
barrel to be collected, so that the
silt and water are separated, the accurate silt amount and water amount are obtained, and the accuracy of a monitoring result is effectively improved.