Self-recording instrument for evaporation capacity of sandy land

Abstract

The invention relates to a self-recording instrument for the evaporation capacity of a sandy land, which can be used for fixedly monitoring the ground evaporation capacity in a natural environment and automatically recording ecological environment factors in real time. The self-recording instrument comprises an evaporation pan system, a capillary connecting device, a water level controlling and water supplying device, a soil moisture monitoring and electronic program controlling system, a data recording, storing and displaying system, a seepage discharging and receiving system and a housing, wherein the evaporation pan system and the water level controlling and water supplying device are connected with the capillary connecting device; the soil moisture monitoring and electronic program controlling system comprises a moisture monitoring electronic program controller, a pressure sensor, two thermistors and two temperature sensors, wherein the electronic program controller is connected with the pressure sensor, the thermistors and the temperature sensors, and the pressure sensor is arranged at the water level controlling and water supplying device; and the evaporation pan system, thecapillary connecting device and the water level controlling and water supplying device are arranged at the housing. The self-recording instrument is suitable for an all-weather and long-term located monitoring in the open, can be used for continuously and accurately measuring the ground evaporation capacity, and is especially suitable for the sandy land.

Description

technical field [0001] The invention belongs to the technical field of agriculture, forestry and hydrological monitoring, and in particular relates to a self-recording instrument for ground evaporation of sandy soil, which can monitor natural environment ground evaporation and can automatically record ecological environment factors in real time. Background technique [0002] Surface evaporation is an important factor in ecological environment monitoring, which comprehensively reflects the energy balance and water cycle process of the ecological environment, and is also the main indicator of water balance research. Due to the interaction of many factors, surface evaporation is an indicator that is difficult to monitor accurately. At present, this indicator has not been used as an observation object in the standard surface meteorological observation system. In the practice of scientific research, ground evaporation is often obtained by half-monitoring and half-theoretical calc...

AI Technical Summary

Problems solved by technology

Up to now, there is no instrument suitable for long-term field positioning monitoring and directly measuring ground evaporation

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