Three barrel compensating type evaporation and penetration measuring device

A compensatory, evapotranspiration technology, used in measuring devices, lubrication indicating devices, liquid/fluid solids measurement, etc., can solve the problem of lack of plant evapotranspiration observation system data, etc., and achieve simple operation and maintenance, high precision, and floor space. small effect

Inactive Publication Date: 2005-04-20
DALIAN UNIV OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

China's wetland research has just started, and there is a lack of systematic data on plant evapotranspiration observations in wetland environments

Method used

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  • Three barrel compensating type evaporation and penetration measuring device
  • Three barrel compensating type evaporation and penetration measuring device
  • Three barrel compensating type evaporation and penetration measuring device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] The method and specific implementation steps of measuring reed evapotranspiration in Zhalong Wetland by using a three-tube compensation lysimeter are as follows:

[0030] step 1

[0031] Put three stainless steel cylinders (the specifications are 1.5-2mm in wall thickness, 120cm in height, and 3000cm in cylinder mouth area 2 , 61.8cm in diameter, equivalent to the area and diameter of the standard E-601 evaporating dish) are installed in the reed growth area according to the layout of the center of the circle at an interval of 90 cm and the center of the circle on a straight line. When installing, put the cylinder on the reed 9 so as not to interfere with its growth environment. Evenly force the rotating steel cylinder handrail 6 to press into the lower layer of mud to a depth of 80-90cm. At this time, the free water surface 7 in the cylinder is 30-40cm away from the cylinder mouth. .

[0032] step 2

[0033] Will figure 1 , 2 The reeds 9 in the shown cylinders are...

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Abstract

The utility model relates to a device for measuring evapotranspiration and infiltration of plants in shallow water areas with three-tube compensation, which belongs to plant physiological and ecological monitoring and hydrological monitoring devices. It is characterized in that the three measuring cylinders are made of stainless steel, the lower cylinder wall is sharpened, two handles are symmetrically welded on the outside of the cylinder wall, the inner wall of the three cylinders is fixed with a triangular bracket to fix the sensor, and the three fulcrums of the triangular bracket are respectively equipped with height adjustment with scales device. Stainless steel connecting conduits are welded on the three cylinder walls, the outer port of the tube is flush with the outer wall of the cylinder, and a net cover is set at the nozzle of the outer wall of the cylinder. One of the cylinder openings is provided with a sealing cover, the edge of the cylinder opening is sealed with a sealing ring, the cylinder wall is provided with ventilation holes, and a windshield is added on the outside. The three-way sensors are powered by DC 24 volts, the data can be directly collected or stored in the memory, and the whole system is automatically powered on to collect and process the data. It has the characteristics of low cost, easy maintenance and high precision.

Description

technical field [0001] The invention belongs to the field of plant physiology, ecological monitoring and wetland meteorological and hydrological measuring devices. It involves automatic observation of evapotranspiration of aquatic plants in wetland environment, evaporation of free water surface, and infiltration in wetland environment. In particular, it involves comparative observation devices for plant evapotranspiration, water surface evaporation, and wet infiltration. Background technique [0002] At present, the direct measurement devices for plant evapotranspiration, water surface evaporation, and infiltration at home and abroad are mainly divided into four categories: [0003] The first category, the lysimeter, uses the mass balance method to determine the evapotranspiration and infiltration of various plants. Lysimeter. The lysimeter method generally requires a large amount of manpower and material resources and long-term maintenance process, and the plant is sampl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F23/296G01N7/00
Inventor 许士国王昊
Owner DALIAN UNIV OF TECH
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