Field investigation portable sampling frame

Abstract

The invention discloses a field investigation portable sampling frame and belongs to the technical field of grassland ecology investigation equipment. The field investigation portable sampling frame comprises a sampling frame body A and a sampling frame body B, wherein the sampling frame body A comprises a fixed rod A, a plurality of coil springs A evenly distributed on the fixed rod A, a controlbutton A connected with the plurality of coil springs A, a pull rod A arranged on one side of the fixed rod A and a plurality of connection lines A which are arranged between the fixed rod A and the pull rod A and respectively fixedly connected with each coil spring A; the sampling frame body B comprises a fixed rod B, a plurality of coil springs B evenly distributed on the fixed rod B, a controlbutton B connected with the plurality of coil springs B, a pull rod B arranged on one side of the fixed rod B and a plurality of connection lines B which are arranged between the fixed rod B and the pull rod B and respectively fixedly connected with each coil spring B. The height of the sampling frame disclosed by the invention can be adjusted so convenience is brought to measurement and sampling;the shape of the sampling frame is fixed, so that the sampling frame is convenient to disassemble and carry; the sampling frame can simply, rapidly and conveniently measure the amount, abundance, frequency and coverage of species.

Description

technical field [0001] The invention relates to a sampling frame, in particular to a portable sample frame for field survey, and belongs to the technical field of grassland ecological survey equipment. Background technique [0002] Traditional field surveys often use measuring tools such as tape measure, measuring rope, steel ruler or folding ruler with four corners to form a square with equal margins on the site. The quadrat, boundary line and orientation determined by this method cannot be accurately controlled. Moreover, it is easy to cause irregular shapes, which will affect the accuracy of investigation and sampling. Moreover, the field survey selects the sample plot, arranges the position of the sample square, and determines the number of sample squares. Therefore, it is more important to save time in these processes. The above method cannot quickly arrange samples. This will waste a lot of time and affect the efficiency of the survey; in addition, because the height o...

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