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Fast soil health quality diagnosing method and test device

A technology of rapid diagnosis and experimental equipment, applied in soil material testing, material inspection products, etc., can solve the problems of high pollutant concentration, long experiment time, etc., and achieve the effect of avoiding the concentration of pollutants

Inactive Publication Date: 2006-12-06
SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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Problems solved by technology

However, the toxicological diagnosis of conventional methods (such as the semi-lethal rate diagnosis method) often requires high pollutant concentrations and a long test time, and ordinary farmland soil contaminated by agricultural chemicals cannot be diagnosed by these methods.

Method used

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  • Fast soil health quality diagnosing method and test device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] For the rapid diagnosis method of soil health quality, two chambers are divided into water-retaining and air-permeable tanks with impermeable partitions, and the two chambers are filled with fine quartz sand, and water is added to saturation; then clean soil and polluted soil are respectively loaded into the The impermeable partition is divided into left and right chambers for earthworm escape, and placed horizontally above the water-retaining and ventilating tank, so that the two tanks are on the same vertical plane; the water in the water-retaining and ventilating tank automatically flows upward due to the capillary action of the soil. Diffusion in the soil of the escape trough, keeping the water saturation state of the quartz sand in the lower water retention and ventilation trough, until the soil in the earthworm escape trough reaches the field water holding capacity; then add earthworms to the left and right chambers of the earthworm escape trough, until all the eart...

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Abstract

The present invention is fast soil health quality diagnosing method and test device. Specifically, one water maintaining and air permeable tank is separated with a watertight partitioning board into two chambers filled with water saturated fine quartzite; one other earthworm escaping tank separated with a watertight partitioning board into two chambers filled with clean soil and polluted soil separately is set on the first tank with the two partitioning boards are aligned vertically; the upper tank is maintained in the moisture level the same as that in field while the lower tank is maintained in water saturation state; earthworms are set to the two chambers in the upper tank; and after earthworms go into soil, the device is set in rest lighted place at 15-25 deg.c. The present invention is simple, and has high sensitivity in detecting the sensitivity of soil animal to the pollution degree of soil.

Description

technical field [0001] The invention relates to the correct diagnosis and evaluation of soil environmental quality, in particular to a method and an experimental device for rapid diagnosis of soil health quality. Background technique [0002] The correct diagnosis and evaluation of the environmental quality of agricultural soil is an important management basis for maintaining the virtuous cycle of the soil ecosystem and maintaining soil productivity, and it is also the premise of the production of pollution-free agricultural products. Due to the complexity and variability of soil properties and pollutant types, the diagnosis and evaluation of soil environmental health quality must take into account the abnormal changes of soil microorganisms, soil animals and plants. However, the toxicological diagnosis of conventional methods (such as half-lethal rate diagnosis method) often requires high pollutant concentrations and long experiment time, and common farmland soil contaminat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/24
Inventor 台培东李培军许华夏
Owner SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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