Method for simulating and measuring influence of farmland soil surface cracks on preferential flow infiltration
A soil surface and farmland technology, applied in the field of simulating and measuring the impact of soil surface cracks on farmland preferential infiltration, can solve the problems of increased infiltration, deterioration of groundwater quality, etc., and achieves the effect of low cost and simple operation.
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Embodiment 1
[0043] Quantitative analysis of the impact of farmland soil surface cracks on preferential infiltration in the corn field of the Caijiachuan small watershed in the field national positioning observation station in Jixian County, Shanxi by using a method of simulating and measuring the effect of farmland soil surface cracks on preferential infiltration provided by the present invention , which may specifically include the following steps:
[0044] Step a1, select three adjacent flat sample plots in the corn field area, place three cylindrical plexiglass sampling tubes with an inner diameter of 40 cm and a height of 80 cm vertically on a different sample plot respectively, and use a soil scraper along the The outer wall of the sampling tube is slowly cut out a soil column whose diameter is consistent with the inner diameter of the sampling tube, and then the sampling tube is slowly pressed into the soil, and the outer wall of the sampling tube is edged with a soil scraper while p...
Embodiment 2
[0051] Quantitative analysis of the impact of farmland soil surface cracks on preferential infiltration in the corn field of the Caijiachuan small watershed in the field national positioning observation station in Jixian County, Shanxi by using a method of simulating and measuring the effect of farmland soil surface cracks on preferential infiltration provided by the present invention , which may specifically include the following steps:
[0052] Step a2, select three adjacent flat sample plots in the corn field area, place three cylindrical plexiglass sampling tubes with an inner diameter of 20 cm and a height of 60 cm vertically on a different sample plot, and use a soil scraper along the The outer wall of the sampling tube is slowly cut out a soil column whose diameter is consistent with the inner diameter of the sampling tube, and then the sampling tube is slowly pressed into the soil, and the outer wall of the sampling tube is edged with a soil scraper while pressing. Cut...
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