Soil wind erosion measuring device

Abstract

The invention discloses a soil wind erosion measuring device. Tracks are arranged on two long edges of a rectangular support; a ventilating duct of which the longitudinal section is in a shape of a 'horn' is erected on the tracks; a ventage of the ventilating duct is an air outlet, and the air outlet is downwards and forms an included angle of between 10 and 30 degrees with the ground; axial flow fans are arranged in the ventilating duct side by side; idler wheels matched with the support tracks are arranged on both sides of the ventilating duct; a rocking handle is arranged on a driving shaft; the rocking handle is shaken, so that the ventilating duct makes parallel movement forwards along the support tracks; a sand table is arranged in the front of the ventilating duct below the support; a wind erosion object receiver is arranged in the front of the sand table; and when the ventilating duct moves forwards, strong air currents blown from the air outlet of the ventilating duct blow wind erosion objects such as sand and dust in the sand table to move forwards, so that the wind erosion objects falls into the wind erosion object receiver. The device can simulate the wind-blown sand movement of different underlying surfaces indoors, and can measure the wind-erosion amount and sand detention amount under the conditions of different underlying surfaces through on-site operation in the open air. The soil wind erosion measuring device has the advantages of simple structure, small volume and convenient operation and carrying.

Description

technical field [0001] The invention relates to a device for environmental ecology research, in particular to a soil wind erosion measuring device. Background technique [0002] Sand and dust from the land have a very negative impact on transportation and people's lives in downwind areas, and at the same time lead to soil and water loss in farmland in sand and dust source areas, decreased soil productivity, and aggravated desertification. Studying the causes and movement principles of sand and dust, the influence of different underlying surfaces on wind speed, wind erosion, and sediment retention, etc., will help reveal the succession of the ecological environment and soil fertility changes in the dust source area, the establishment of farmland protective belts and soil conservation tillage. , as well as traffic route design and urban environmental planning are of great significance. Soil dust movement is affected by many factors such as atmospheric circulation, geological ...

AI Technical Summary

Problems solved by technology

The large-scale wind tunnel equipment disclosed in the prior art is used in field sandstorm research. It is very difficult to carry, assemble, and start up. It requires large-area site support and a high-power power supply system for field operation, and it is easy to damage the underlying surface during operation. surroundings

Images