A device for collecting submerged plants and a method for collecting submerged plants

Abstract

The invention belongs to the field of submerged plant collection and particularly relates to a submerged plant collection device and a submerged plant collection method. The submerged plant collection device comprises a hollow iron pipe, a screw rod and a rotary cutting sampling head, wherein the lower end of the hollow iron pipe can be in thread connection with the upper end of a connection rod I of the rotary cutting sampling head; a cutting blade is fixed at the lower end of the connection rod I of the rotary cutting sampling head; a clamping ring is fixedly arranged on an inner wall of the upper part of the hollow iron pipe in the peripheral direction; the lower part of the screw rod stretches in from an opening formed in the upper part of the hollow iron pipe; a handle is fixedly arranged at the upper end part of the screw rod; a spiral sleeve matched with the screw rod sleeves the screw rod; and the spiral sleeve is located in the hollow iron pipe and clamping teeth capable of being engaged with the clamping ring are arranged on the lower end face of the spiral sleeve. The rotary cutting sampling head is suitable for collecting relatively long large-size submerged plants; and the collection device is further provided with a grasping type collection head and a corresponding control structure, and is suitable for collecting small-size submerged plants. The device and the method, provided by the invention, have the advantages of wide applicability, accuracy and convenience for sampling and the like.

Description

technical field [0001] The invention belongs to the field of aquatic plant collection, and in particular relates to a submerged plant collection device and a submerged plant collection method. Background technique [0002] Submerged plants are the most important primary producers in the lake ecosystem. They are rich in species and widely distributed, creating a good habitat for fish and benthic animals, and playing an important role in stabilizing the lake ecosystem. At the same time, Submerged plants also play a positive role in maintaining the clean water state of the lake. Many studies believe that when submerged plants dominate in shallow lakes, they can inhibit the release of nitrogen and phosphorus in the sediment, reduce the level of nitrogen and phosphorus in the water body, and control the proliferation of algae , so that the lake develops in a benign direction. Therefore, the community composition, distribution and biomass of submerged plants in lakes often become...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention provides a submerged plant collection device, which can solve the problem that the sampling in the prior art cannot be applied to different sampling environments, the sampling location cannot be accurately controlled, the operation is laborious, or it cannot be used for a long time. The collection of submerged plants and other issues

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