Assembled net frame for measuring fine roots through utilization of ingrowth soil core method

Abstract

The invention discloses an assembled net frame for measuring fine roots through utilization of an ingrowth soil core method and belongs to the field of ecological study. The assembled net frame is composed of three partsincludingmore than three net columns formed by coiling net plates, a plurality of nylon cable ties, and a bottom cover. The net plates and fence plates employed by the net frame are rectangular. The cylindrical net columns are formed by coiling the net plates. Inner diameters of the net columns are equal to a diameter of a soil column practically needing to be measured. The plurality of nylon cable ties are used for connecting the more than three net columns, and the bottom cover is buckled to assemble the net frame. The net frame is used for filling rootless soil when thefine roots are measured through utilization of the ingrowth soil core method, thereby satisfying a fine root measurement requirement. The net frame is applicable to research of plant fine root biomass, productivity and turnover. According to the net frame, composition fittings are regular in shape, are convenient topackageand carry, are rapid in assembly and are fixed in shape. When the rootless soil is added, operation is convenient and disassembly is simple, so field working efficiency is improved.

Description

technical field [0001] The invention relates to an assemblable net frame for measuring fine roots by an ingrown soil core method, which is a product design for a sampling device required for containing rootless soil when measuring fine roots, and belongs to the field of ecological research. Background technique [0002] Plant fine roots ( root system) plays an important role in nutrient cycle and carbon enrichment, but the root system of plants lives in the soil environment, and it is difficult to directly observe its physiological and ecological activities, which increases the difficulty of research. The study of fine root biomass and growth is especially It is not easy to carry out, and there is a lack of uniform and reliable sampling methods for the study of fine roots. The current research methods for fine roots include root drilling method, internal growth method and micro root canal method. The internal growth soil core method is the most commonly used method for stud...

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Problems solved by technology

[0004] In the field operation of measuring fine roots by the inner growth soil core method, when filling rootless soil with gauze or nylon mesh bags, it is inconvenient to operate, difficult to shape, and difficult to control the depth of soil addition. The operation of backfilling the soil layer by layer according to the original soil layer increases the difficulty, time-consuming and low efficiency, but the use of soil molds increases the work intensity and prolongs the field work time; in addition, when taking out the soil column, the sandy loam soil Gauze or nylon nets are not easy to maintain shape and break roots, which may increase the experimental error when sampling in layers

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