Quick monitoring method for soil erosion rate
A technology of soil erosion and rate, which is applied in the direction of soil material testing, material inspection products, etc., can solve the problems of measurement error and heavy workload, and cannot solve the problems of exposed or buried erosion needles, so as to reduce labor intensity, avoid human disturbance, and be practical wide range of effects
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Embodiment 1
[0028] Embodiment 1 applies the soil erosion scale of the water erosion area to carry out the mensuration of soil erosion rate
[0029] In the runoff sub-district, measure soil erosion rate with the inventive method, it comprises the steps:
[0030] 1) The area of the selected runoff plot is 50m 2 , the aforementioned soil erosion scale in the water erosion area ( figure 1 , figure 2 ) is buried vertically on the surface of the monitoring sample plot, the 0 scale line is flush with the surface, and the positive value part is buried below the surface, so that one end of the diverging line of the erosion scale (that is, the two arc surfaces with longer arc length and larger radius) Intersecting edges) face the direction of water flow. A total of 4 columns and 5 rows of erosion scales are arranged, with a column spacing of 0.5m and a row spacing of 1m. A total of 20 erosion scales are arranged and numbered sequentially;
[0031] 2) According to the predetermined monitoring...
Embodiment 2
[0036] Embodiment 2 applies the soil erosion scale in wind erosion area to carry out the mensuration of soil erosion rate
[0037] In the wind tunnel, the wind erosion monitoring of autumn plowing and harrowing has been simulated, including the following steps:
[0038] 1) The area of the selected monitoring area is 2m 2 , the aforementioned soil erosion scale in the wind erosion area ( image 3 , Figure 4 ) is vertically buried on the surface of the monitoring sample land, the 0 scale line is flush with the surface, and the positive value part is buried below the surface, so that the sharp end of the erosion scale (that is, the edge with a smaller angle on the adjacent two sides) faces the wind direction. 3 columns and 3 rows, with a column spacing of 0.3m and a row spacing of 0.5m. A total of 9 erosion scales are arranged and numbered sequentially;
[0039] 2) According to the predetermined monitoring time requirements, read out the scale numbers of each erosion scale ...
Embodiment 3
[0045] Embodiment 3 Application of wind erosion area soil erosion scale to carry out the mensuration of soil erosion rate
[0046] The wind erosion monitoring of bare sandy land was completed outdoors, including the following steps:
[0047] 1) The area of the selected monitoring area is 100m 2 , the aforementioned soil erosion scale in the wind erosion area ( image 3 , Figure 4 ) is vertically buried on the surface of the monitoring sample land, the 0 scale line is flush with the surface, and the positive value part is buried below the surface, so that the sharp end of the erosion scale (that is, the edge with a smaller angle on the adjacent two sides) faces the wind direction. 10 columns and 5 rows, with a column spacing of 1m and a row spacing of 2m, a total of 50 erosion scales are arranged and numbered sequentially;
[0048] 2) According to the predetermined monitoring time requirements, read out the scale numbers of each erosion scale sequentially by means of a di...
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