Simulation determination method for formation process of condensate in soil
A measurement method and technology of condensed water, applied in the direction of material moisture content, etc., to achieve the effect of accurate measurement and convenient operation
Inactive Publication Date: 2013-11-13
SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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[0003] Aiming at the deficiencies of the prior art, the present invention provides an accurate simulation and experimental observation method of condensed water in the soil, and solves the problems of simulating the occurrence process of condensed water in the soil and measuring the quantity
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[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. Such as figure 1 As shown, this method mainly uses semiconductor refrigeration sheets and heating cables to form the temperature difference between the upper and lower layers of the soil, and uses time domain reflectometer (TDR) probes and temperature measurement probes to measure the amount of condensed water in the soil and the soil temperature.
[0024] The present invention is mainly divided into four parts: box body, soil heating system, soil cooling system, soil temperature and water content observation system ( figure 2 ). Including: 1-data collector; 2-cooling thermostat; 3-heating thermostat; 4-paraffin wax covering of upper soil surface; 5-box size (40cm×40cm×120cm) and material (4mm iron plate) ;6-Experimental observation temperature probe (buried in the upper soil); 7-TDR moisture measurement probe (buried in the upper soil); 8-Se...
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Abstract
The invention relates to a simulation determination method for a formation process of condensate in soil. A heat tracing cable, a semiconductor refrigeration sheet and a TDR moisture determination method are reasonably combined. The heat tracing cable and the semiconductor refrigeration sheet are used to form a temperature difference between an upper and a lower soil layer artificially; a TDR moisture determinator is used to determine migration process and quantity of water in soil under the temperature gradient, so as to simulate and determine formation process and quantity of condensate in soil. The method provided by the invention can accurately determine coagulation quantity of condensate soil under different temperatures and soil water contents. The method is convenient for operation and accurate in determination, and is an effective method for simulation and determination of coagulation process of water in the soil.
Description
technical field [0001] The invention relates to a simulation method for measuring condensation water in soil, and provides a measurement method for accurately observing the occurrence process of condensation water in soil. Background technique [0002] Condensed water in soil is the soil moisture migration process in which the deep soil moisture rises in the state of water vapor and condenses in the shallow soil. This process has a certain replenishment effect on the shallow soil moisture. The main process is: there is When the temperature gradient occurs, the water in the deep soil will condense in the form of water vapor in the soil with a lower temperature (reaching the dew point temperature) in the shallow layer, increasing the moisture content of the shallow soil. In areas with little rainfall, condensed water in soil plays a vital role in the ecology and plant growth of arid areas. At present, there are few methods for measuring condensed water in soil. The commonly u...
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IPC IPC(8): G01N25/56
Inventor 阿拉木萨宗芹牛存洋
Owner SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI