Batch collecting device of soil solution of different soil layer depth

Abstract

The invention relates to a soil solution collecting device, in particular to a batch collecting device for solution soil from soil layers of different depths used in the field, which comprises a leaky pipe provided with a pottery clay head at the bottom part, a liquid collection bottle, a buffer bottle and a negative-pressure device. One end of a drainage pipe is hermetically inserted in the leaky pipe, and the other end thereof is inserted in the liquid collection bottle; the buffer bottle which communicates with the negative-pressure device communicates with the liquid collection bottle through a multi-way air breather; the leaky pipe is buried in the soil; fine sand is arranged around the pottery clay head at the bottom part of the leaky pipe; a plurality of connectors are all distributed on the multi-way air breather, one of the connectors communicates with the buffer bottle, and other connectors communicate with a plurality of liquid collection bottles; one end of the drainage pipe is inserted into the bottom part of the leaky pipe, and the connection position of the drainage pipe and the leaky pipe is sealed by a rubber cork; a drainage needle head is arranged at the other end of the drainage pipe, and inserted into the rubber cork of the liquid collection bottle. The soil solution collecting device has the advantages of simple structure and convenient operation, and can collect a plurality of samples at one time, thereby enhancing collection efficiency; furthermore, the disturbance of the collecting device to the soil is small, so that the accuracy of the test is high.

Description

technical field [0001] The invention relates to a soil solution collection device, in particular to a batch collection device for soil solutions with different soil layer depths used in the field. Background technique [0002] When people are studying the vertical migration of various elements in soil, according to different research purposes, after arranging field tests in the field, it is necessary to collect soil solutions at different soil depths to determine the content of the target elements in the soil solution, and then show the soil Vertical transport of various elements in soil. The commonly used collection method is to bury underground drainage pipes, which has the advantage of being able to study the drainage and leaching of nutrients in a large area under the condition of normal farming in the field. However, the workload is heavy, a large amount of manpower and material resources are required, and the soil is greatly disturbed, which affects the accuracy of th...

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Problems solved by technology

However, its workload is large, and it requires a lot of manpower and material resources, and it disturbs the soil greatly, which affects the accuracy of the test.

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