Embedded loess percolating water collecting device

Abstract

The invention discloses an embedded loess percolating water collecting device, which comprises a water collecting plate and a water collecting box, wherein fillers used for water collection are arranged on the water collecting plate; a water discharging opening is formed in the water collecting box; a mud and water separator used for mud and water separation is arranged in the water collecting box; a mud discharging opening is formed in the mud and water separator; the bottom of the water collecting plate is connected with a water guide pipe; a filter screen is arranged in a connecting part ofthe water collecting plate and the water guide pipe; the lower end of the water guide pipe extends into the water collecting box; an outlet of the water guide pipe extends into the mud and water separator. The embedded loess percolating water collecting device is arranged in a hole under the earth surface; the water collecting plate is in contact with the inner wall of the hole or the tail end ofthe water collecting plate extends into a wall body of the hole; the fillers on the water collecting plate are in contact with the inner wall of the hole. The embedded loess percolating water collecting device has the advantages that the water collecting efficiency is high; the embedded loess percolating water collecting device is very suitable for collecting soil water in the loess region.

Description

technical field [0001] The invention relates to a device for collecting soil moisture, in particular to an embedded loess percolation water collecting device. Background technique [0002] Soil water is the carrier of soil material migration and movement, and it is the focus of research in the fields of soil science, hydrology, botany and ecological environment. At present, there are three main methods for soil water collection: (1) direct soil sampling method: the soil sample is taken out from the original position, and the soil water is extracted from the soil by centrifugation, extraction, displacement column method and pressing method in the laboratory. (2) Self-flow method: install the soil water sampler in situ, rely on gravity to allow the soil water to flow into the water sample bottle; (3) Negative pressure method: install the soil water sampler in situ, pump the negative pressure through the inside and outside The pressure difference draws water from the soil. Am...

AI Technical Summary

Problems solved by technology

Among them, the direct soil sampling method is a destructive sampling method, which will lead to changes in soil physical and chemical properties, but its biggest shortcoming is that it is not conducive to long-term positioning research.

For example, negative pressure suction is easy to collect water in areas with high soil moisture, but for loess areas, due to less rainfall and low soil moisture content, the ceramic head for suction is easy to clog in the soil, making it difficult to collect soil water; in addition, the suction device is prone to disturbance of the hydraulic field around the collection head, affecting the natural flow of water

At present, the applicant has not retrieved a collection device specifically for soil water in the loess area

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