Automatic determination device of soil moisture solute moving parameter

A technology of solute transport and soil moisture, applied in measurement devices, analysis materials, material analysis by electromagnetic means, etc., can solve the problems of inconsistent soil samples, sample errors, etc.

Inactive Publication Date: 2006-06-28
INST OF SOIL & WATER CONVERVATION CHINESE ACAD OF SCI +1
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Problems solved by technology

However, due to the limitations of the experimental system and research methods, the soil samples used in the determination of hydraulic parameters and solute transport are inconsistent, resulting in sample errors. Therefore, it is necessary to develop a device that uses the same soil sample to measure hydraulic parameters and solute transport parameters.

Method used

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  • Automatic determination device of soil moisture solute moving parameter
  • Automatic determination device of soil moisture solute moving parameter
  • Automatic determination device of soil moisture solute moving parameter

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Embodiment Construction

[0019] see figure 1 , soil moisture of the present invention, solute transport parameter automatic measuring device, is made up of three parts:

[0020] (1) Water and solute supplier. This part adopts the principle of Martens bottle to provide water and solution to the soil horizontal column. It is composed of two plexiglass tubes, and has a switch to control the outflow of water or solute, and through the pipeline and The three-way solenoid valve is connected, and there are pressure sensors for monitoring the infiltration of water or solute at the liquid outlet of each plexiglass tube.

[0021] (2) Soil level column, which is a plexiglass tube with a length of 60 cm and an inner diameter of 5 cm, on which a probe is inserted at an interval of 8 cm to measure the conductivity. One end is the inlet of water or solution, and the other end is the outlet. , below the outflow port, there is an automatic solution collector for the outflow liquid.

[0022] The probes are fixed on t...

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Abstract

An automatic determining device of water and solute translocation parameter in soil is prepared as connecting computer control unit separately to pressure transducer, three ¿C way solenoid valve, probe and solution collector to control automatic switch ¿C over of water and solute supply and to automatically collect liquid signal in said collector for obtaining conductivity and permeating amount of soil sample at different position in different soil horizontal column, then calculating out soil humid front, solute frontal surface position and permeating amount variation according to obtained data automatically.

Description

technical field [0001] The invention belongs to the field of soil and water conservation research, and relates to a measuring device, in particular to a device for automatically measuring soil moisture and solute migration parameters. Background technique [0002] The shortage of water resources in arid and semi-arid areas is an important factor restricting the development of industry and agriculture and the overall progress of society. Efficient use of limited water resources has become an important means to alleviate water shortages, achieve sustainable industrial and agricultural development, and ecological restoration. Soil is the supply and storage place of various energy required for crop growth. Prediction and forecasting and timely regulation of the material cycle process in soil are important contents for the implementation of efficient agricultural water use and ecological environment construction. Soil moisture is not only the solvent and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/12G01N27/416
Inventor 王全九樊军赵军郑纪勇邵明安张兴昌李世清
Owner INST OF SOIL & WATER CONVERVATION CHINESE ACAD OF SCI
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