System and method for continuously sampling and measuring runoff and sediment in soil and water conservation monitoring area

Abstract

The invention relates to a system and method for continuously sampling and measuring runoff and sediment in a soil and water conservation monitoring area. The system comprises a sampling subsystem, a measuring subsystem, a sample storage subsystem, a control subsystem, a power supply subsystem, a cleaning subsystem, a rainfall sensor and a plurality of sampling buckets, wherein the sampling subsystem, the measuring subsystem, the sample storage subsystem, the control subsystem, the power supply subsystem, the cleaning subsystem and the rainfall sensor are mounted in a box body with shutters on four surfaces; the plurality of sampling buckets surround an annular sampling track capable of intermittent rotation according to the water condition; the sampling buckets are connected with the annular sampling track through an automatic unlocking mechanism. The system and the method provided by the invention have the benefits that as a whole set of sampling buckets capable of being automatically recycled are arranged, the sampling buckets constantly sample the runoff generated in the area through the annular sampling track and record the sampling frequency; moreover, each sampling is accurately measured through the measuring subsystem, completely-unmanned automatic sampling and automatic measurement are realized, the field workload of scientific researchers is greatly reduced, and the labor and the use cost are saved.

Description

technical field [0001] The invention relates to a system and method for continuous sampling and measurement of runoff and sediment in a water and soil conservation monitoring area, which is a hydrological experiment system method and a system and method for monitoring area runoff by applying water and soil conservation. Background technique [0002] The establishment of soil and water conservation monitoring areas and the monitoring of water and soil loss at designated locations are the main means for carrying out research on water and soil conservation, control of water and soil loss, and prevention and control of water and soil loss in production and construction projects. The horizontal projection size of the standard monitoring area is generally 20m in length and 5m in width, and a water outlet is set in the middle part of the downstream. Its runoff and sediment process monitoring mainly adopts the principle of equal flow diversion to monitor based on the rainfall proces...

AI Technical Summary

Problems solved by technology

[0003] The above method has the following problems in application: (1) In order to avoid artificial interference, the water and soil conservation monitoring area is generally built in a remote and inconvenient location. After one monitoring, it is difficult to clean up the sediment for the next monitoring of erosion and sediment production Prepare

(2) It is only possible to monitor the total water and sediment production, but it is difficult to monitor the process of water and sediment production. In order to obtain the process of water and sediment production, special personnel are required to be on duty. Opportunity to monitor flow sand process and obtain data

(3) The runoff and sediment data obtained are often inaccurate and have limited reference

Mainly due to the change of rainfall intensity, the location of the water outlet in the monitoring area, the location of the receiving pool, etc., the water level conditions and sediment deposition conditions in the receiving pool will change when the outflow process of the monitoring area changes, resulting in the discharge of the water outlet. There is a big difference between the outflow process and the sediment concentration process, so that the longer the rainfall runoff process is, the less representative the runoff and sediment amount of a single outlet are.

Images