Design and application of soil meso-and micro-invertebrate separation equipment based on farmland landscape and ecological function research

Abstract

The invention relates to a design and application of soil meso-and micro-invertebrate separation equipment based on farmland landscape and ecological function research. The soil meso-and micro-invertebrate separation equipment comprises the following components: an internal hopper, an external hopper, a bulb, an objective table and an animal container, wherein the internal hopper and the external container are embedded and vertically placed; the upper-port diameter and height of the internal hopper are smaller than those of the external hopper; a fixing strip is arranged between the internal hopper and the external hopper so as to ensure that a clearance is reserved between the internal hopper and the external hopper, and the relative positions of the internal hopper and the external hopper are constant; the bulb is positioned at the bottom of the internal hopper; the objective table is arranged at the top of the internal hopper; the animal container is positioned below the bottom outlet of the external hopper and is filled with 75wt% ethanol. Compared with a traditional device, the soil meso-and micro-invertebrate separation equipment is good in stability; a gauze is not used for separation, the problem that soil falls into a lower animal container for receiving worms when soil particles are small can be avoided; when the soil moisture content is high, the moisture can not flow into the lower animal container.

Description

technical field [0001] The invention relates to the field of soil animal research, in particular to the design and application of a small and medium-sized soil animal separation equipment based on farmland landscape and ecological function research. Background technique [0002] Tens of thousands of soil organisms live in the soil. They are an important part of the soil ecosystem. They participate in the decomposition of biological residues, change the soil properties, and affect the formation and development of soil and the material cycle and energy flow of the ecosystem. are all significant. Soil animals are an important group in the composition of soil organisms. It generally refers to animals that spend their whole life or a certain developmental stage in the soil and have a certain impact on the soil. There are many types of soil animals. Except for typical marine animals, most animal phyla are represented in soil, mainly involving protozoa, flatworms, rotifers, linea...

AI Technical Summary

Problems solved by technology

But the inventor found some problems in actual use: First, the stability of the device is relatively poor. Since the whole device is divided into upper and lower parts, and the instrument itself has a certain height, in order to prevent the instrument from falling sideways, the stability of the device is greatly affected. The requirements are relatively high; secondly, when separating some soil samples with particularly small soil particles, the soil will also fall into the plate below through the gauze, which is helpful for selecting small soil animals (especially mites and collembola, etc.) from the plate in the later stage. Small soil animals that need to be sorted under a microscope) cause great difficulties; again, when some soils with high water content are separated, water will flow into the plate below, causing too much water in the plate, diluting the concentration of the alcohol solution, Occasionally spills the alcohol solution

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