Method for automatically controlling change of outdoor soil temperature

Abstract

The invention relates to a method for automatically controlling the change of outdoor soil temperature, belonging to the technical field of environmental ecology, comprising the following steps: placing a plurality of barrels filled with soil into a water tank filled with water; heating the water inside the water tank by heating a cable; and then heating the soil inside the barrels inside the water tank through the heated water, wherein the temperature of the water inside the water tank and the temperature of the soil inside the barrels can be automatically controlled by a temperature sensorand a temperature controller, and the temperature of the soil inside the barrels can be set 1.0-4.0 DEG C higher than that of contrast soil. The effective scientific method is provided by quantitatively and contrastively researching the difference of ecological processes, i.e. a biological process, a physical process, a chemical process, and the like, between the soil and the contrast soil after the temperature of the soil is increased by 1.0-4.0 DEG C under the influence of i atmospheric temperature increase. The invention solves the problems of nonuniform soil heating temperature and overheated partial soil or scorch which are brought by directly using the cable to heat the soil, thereby ensuring the consistency of heated soil property and contrast-reaching soil property.

Description

technical field [0001] The invention belongs to the technical field of environmental ecological simulation and relates to a method for automatically controlling soil temperature changes in the field. Background technique [0002] The rising temperature is one of the main problems of global environmental change, and it is estimated that by 2050, the global temperature will be 1.2-4.0 degrees higher than the current one. The increase in temperature will bring a series of impacts on the natural environment, such as rising sea level, northward shift of bioclimatic zones, and shrinking of permafrost regions. Among them, the northward shift of the bioclimatic zone will cause great changes in the biological, physical, chemical, and even humanistic processes of the terrestrial surface ecosystem. At the same time, due to the increase in temperature, the soil temperature in different regions will increase accordingly, especially in the area north of 35 degrees north latitude, the inc...

AI Technical Summary

Problems solved by technology

However, since the current methods of simulating and controlling soil temperature rise mostly use the direct heating method, the consequence is that the test soil is heated unevenly, the local soil temperature is too high or burnt, and the soil properties change. The research results lack authenticity and cannot Accurately reflect the difference in the ecological process between the soil after warming and the control soil, which may cause deviations in the prediction results