Farmland plow pan soil infiltration performance measuring device and method

Abstract

The invention relates to the technical field of soil infiltration performance measurement, and discloses a farmland plow pan soil infiltration performance measuring device and a method thereof. The device provided by the invention comprises a constant flow water supply device, an infiltration ring, a draining container and two flow sensors, wherein the constant flow water supply device is connected with the infiltration ring through a first water pipe; the infiltration ring is connected with the draining container through a second water pipe; the constant flow water supply device is disposed on one of the flow sensors; and the draining container is disposed on the other flow sensor. According to a water balance principle, the invention brings forward the farmland plow pan soil infiltration performance measuring method and its corresponding measuring device. The method and the device can be conveniently applied in field tests. In addition, the device provided by the invention is convenient to carry, is simple to operate, can be used to obtain data instantly, and automatically operates under the control of a computer, thus saving a lot of time, manpower and material resources.

Description

technical field [0001] The invention relates to the technical field of soil infiltration performance measurement, in particular to a device and method for measuring the soil infiltration performance of the bottom layer of an agricultural land plow. Background technique [0002] The bottom layer of the plow is formed by the long-term repeated compaction of the plow during long-term cultivation and the deposition of clay particles with water during precipitation. The total porosity is small and the water permeability is very weak. Plow bottom layer is very important in the hydrological process of farmland, which affects the intensity of rainfall infiltration, runoff and soil erosion in farmland soil. For sloping cultivated land with impermeable bottom layer or plow bottom layer with low infiltration capacity, the surface soil on slope land can easily become saturated due to its poor water seepage capacity. Most of the rainfall is directly converted into surface runoff or sub...

AI Technical Summary

Problems solved by technology

[0003] At present, the stable infiltration rate of soil is mostly measured indoors, and soil samples are taken with a ring knife for testing, which is difficult to measure in the field

The indoor test takes a long time, and the data is obtained slowly; the soil structure is easy to be damaged during the soil sample collection process; the collected soil sample area is small, the representativeness is poor, and it cannot reflect the real infiltration situation of the field soil

Images