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location:Home>News>Industry Dynamic>Soil moisture monitoring techniques

Soil moisture monitoring techniques

time:2024-04-10 08:43:21  source:Weather Station viewed:93 time

Soil moisture monitoring techniques fall into three main categories: direct measurements, matrix potential measurements and non-contact indirect measurements.

Direct measurements: moisture content is calculated by weighing and drying soil samples, or measured directly using instruments such as neutron meters and conductivity meters.

Matrix potential measurements: moisture content is inferred by measuring the matrix potential of the soil using tools such as tensiometers and resistance blocks.

Non-contact indirect measurement methods: These include far-infrared remote sensing, ground-based thermal radiation measurements and acoustic methods, which do not require direct contact with the soil and measure moisture indirectly through remote sensing or physical properties.

In China, in response to the effects of drought on agriculture, many regions have begun to install soil moisture monitoring stations in their fields. These monitoring stations can monitor soil moisture in real time, helping farmers to keep abreast of soil conditions and adjust irrigation schedules based on the data to improve water use efficiency and ensure that crops receive the right amount of water, thus helping to safeguard food production and improve agricultural sustainability.

Automatic soil moisture monitoring equipment is a practical tool that is widely used in industries such as agriculture, environmental protection and geological exploration. Its automatic data collection through sensors helps agriculturalists and environmental experts to better manage soil moisture, improve crop yields, protect the environment and prevent geological disasters. This system is easy to operate and can be monitored remotely, making soil moisture management more efficient and scientific.

Soil moisture monitoring equipment measures the moisture content of the soil through specific sensor technology. It works by using sensors that emit electromagnetic waves, which travel through the soil and are received by a probe. By measuring the strength of the signal received by the probe, the dielectric constant of the soil can be deduced.

The dielectric constant of the soil is closely related to its moisture content, as water molecules have a high dielectric constant. When the moisture content of the soil changes, the dielectric constant also changes. By accurately measuring this change, monitoring equipment can accurately calculate the moisture content of the soil.

This measurement method is direct and stable and can be adapted to different types of soil environments, providing reliable data support for agricultural production and environmental protection. By monitoring soil moisture in real time, it can effectively guide irrigation management, optimise the use of water resources, and improve agricultural productivity and crop yields.


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