Soil compactness and moisture composite measuring method and device

Abstract

The invention relates to a soil compactness and moisture composite measuring method and device. The method comprises the following steps: obtaining the acceleration and pressure of a probe during the process that the probe is inserted into soil to be tested; subjecting the acceleration and pressure to a noise removing treatment; analyzing the acceleration and pressure after the noise removing treatment so as to determine the measuring result of soil compactness; and based on a volumetric soil water content model, according to the compactness measuring result, converting the soil moisture into volumetric water content under standard soil compactness. The provided method is more universal for measuring the soil compactness. The measurement error due to uneven inserting speed of probe is avoided. The soil compactness can be measured more precisely. The measuring error of volumetric soil water content caused by different compactness of soil can be avoided. The volumetric soil water content can be measured more precisely. The research on agricultural production, forest breeding, and ecological and environmental monitoring is well assisted by the provided method.

Description

technical field [0001] The invention relates to the field of soil detection in forest areas, in particular to a method and device for compound measurement of soil compactness and moisture. Background technique [0002] Soil has become the basis of agricultural and forestry production because of its fertility and the ability to grow green plants. The compactness and moisture content in the soil directly affect the growth and development of plants. Soil compactness is an important parameter in soil structure, which is composed of soil shear force, compression force and friction force. Natural factors such as floods and droughts, as well as human factors such as heavy machinery and other farming practices will change the soil compaction, thereby affecting the conditions of water, fertilizer, gas and heat in the soil environment on which plants depend, which in turn will affect the growth of plants and the health of crops. Yield. Soil compactness can affect the growth of crop ...

AI Technical Summary

Problems solved by technology

[0005] For the existing soil compactness meter, it is difficult to accurately ensure the speed of probe insertion in actual use, which leads to large measurement errors and the existing soil moisture content measurement process ignores the influence of soil compaction. Cause the defective of soil volume moisture content measurement error, the present invention proposes following technical scheme:

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