Device for determining soil wind erosion of black soil farmland, and application method of device

A technology for measuring devices and farmland, which is applied to measuring devices, weather resistance/light resistance/corrosion resistance, instruments, etc. It can solve the problems of limited particle size range of collected soil particles and errors of wind erosion measurement values ​​in black soil areas in northeast China, and achieve easy implementation, The effect of small measurement error and increased applicability

Inactive Publication Date: 2019-03-22
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a black soil farmland soil wind erosion measurement device and its application method in order to solve the problem that the existing BN

Method used

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  • Device for determining soil wind erosion of black soil farmland, and application method of device
  • Device for determining soil wind erosion of black soil farmland, and application method of device
  • Device for determining soil wind erosion of black soil farmland, and application method of device

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specific Embodiment approach 1

[0018] Specific embodiment 1: The device for measuring wind erosion of black soil farmland in this embodiment includes a sand mining box 1, a sand collecting box 2, a tail wind deflector 3, a fixed rod 4, and a support frame 5-1. The sand mining box 1 is trapezoidal. Hollow box structure. The top surface of the sand mining box 1 is provided with a ventilation screen 8. The ventilation screen 8 is a stainless steel screen with a 60-mesh aperture. The trapezoidal sand mining box 1 has a vent 10 on the side of the narrow side. The sand mining box The bottom surface of the box body 1 is provided with a louver-type choke baffle 9, and the bottom surface of the box body of the sand mining box 1 is connected with a sand collecting box 2 through a card slot to form a sand box assembly;

[0019] The fixed rod 4 is vertically inserted into the soil. The top of the fixed rod 4 is circumferentially connected with a plurality of fiber ropes, the other end of each fiber rope is connected to the...

specific Embodiment approach 2

[0020] Specific embodiment two: This embodiment is different from the specific embodiment one in that the length of the fixed rod 4 is 220-250 cm.

specific Embodiment approach 3

[0021] Specific embodiment three: this embodiment is different from specific embodiment two in that the bottom of the fixed rod 4 is in the shape of a cone, and the depth of the fixed rod 4 embedded in the soil is 35-45 cm.

[0022] In this embodiment, the bottom of the fixed rod is sleeved with a circular chassis 7 which is used to stabilize and level the overall device.

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Abstract

The invention relates to a device for determining soil wind erosion of black soil farmland, and an application method of the device, belonging to the field of wind erosion measurement, aiming at solving the problems that the existing big spring number eight (BSNE) sand collecting instrument is limited in particle size range of collected soil particles and larger in error in the wind erosion measurement value of the northeast black soil area. According to the device for determining the soil wind erosion of the black soil farmland, a trapezoid hollow box body is adopted as a sand excavation box,a ventilation screen is arranged on the top face of the sand excavation box, a ventilation opening is formed in the side face where the narrow side of the sand excavation box is positioned, and a windscreen baffle plate is arranged on the bottom face of the box body of the sand excavation box; the sand excavation box is connected with a sand collection box, so that a sand box assembly is formed;a plurality of bases are fixed on a fixed rod, and support frames are arranged on the bases; the sand box assembly and tail wing wind deflectors are installed on the support frames. The device for determining the soil wind erosion is applied to wind erosion monitoring of the black soil farmland, and the soil sand transport fluxes at different heights are obtained by calculation; the device is easyto operate, small in monitoring error and higher in applicability, and the obtained conclusion is closer to reality.

Description

Technical field [0001] The invention belongs to the field of wind erosion measurement, and specifically relates to a black soil farmland soil wind erosion measurement instrument and equipment and an application method thereof. Background technique [0002] The black soil area of ​​Northeast my country is an important food supply area, but in recent decades, with the increasing intensity of agricultural production and backward traditional farming methods, coupled with insufficient protection measures, the black soil degradation has become increasingly serious. Strong soil erosion is the main cause of black land degradation, and wind erosion is one of the most important ways. The strong winds in the black soil area mostly occur in winter and spring. The wind is strong and lasts for a long time. In addition, the residue of straw after the harvest of the previous crops and the low surface coverage result in dry soil and loose soil, and then strong wind erosion. This phenomenon has s...

Claims

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Application Information

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IPC IPC(8): G01N17/00G01N5/04
CPCG01N5/04G01N17/00
Inventor 陈帅张兴义胡伟杨润城李浩翟星宇
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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