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The soil moisture content is determined using soil moisture measuring instrument procedures
Time:2014年01月18日 Concerned about the number of:103

Soil moisture is also known Tachometer soil moisture meter, while it can simultaneously detect six points soil moisture conditions, it is sometimes also known as multi-point soil moisture monitoring system. Soil moisture monitoring system is through the sensor for moisture measurement, the sensor line with the "soil moisture monitoring specification SL000-2005 China water industry standard" Time Domain Reflectometry (TDR) technology to real-time monitoring of soil moisture. 

Soil moisture is a major source of water absorbed by plants, of course, plants can absorb water from the air or directly absorb small amounts of moisture on the leaves fall. Soil is the main source of precipitation and irrigation water, in the lithosphere - biosphere - atmosphere - Circle - hydrosphere water large circle. Soil drought monitoring system has multiple models, such as TZS-2X type, TZS-5X-type, which TZS-5X-type soil moisture monitoring system in addition to measuring soil components, you can also measure soil temperature, air temperature, atmospheric humidity and dew point, etc. five parameters, soil moisture is a multi-parameter monitoring system. 

How much soil moisture, there are two representations, one based on soil moisture content, said the weight of the water content and volume water content, soil bulk density between the two can be translated; another type is used to represent the soil water potential, soil water potential The negative is the soil water suction. The paper stresses the soil moisture monitoring system is used to represent the soil volumetric water content, and its units are% (m3/m3). In addition, the soil moisture meter can measure the lowest point of soil into 205mm deep, the lowest temperature point 200mm.

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