Alga anabiosis and vertical migration monitoring device and monitoring method for early warning of algal bloom

Abstract

The invention relates to an alga anabiosis and vertical migration monitoring device and monitoring method for early warning of algal bloom, wherein the monitoring device comprises a water surface control unit and a water bottom measuring piece unit; the water surface control unit is provided with a floating platform; a first wireless communicator, a signal lamp and a winch are arranged on the floating platform, and the winch is connected with the measuring piece unit through a mooring rope; the water bottom measuring piece unit comprises an equipment box, a measuring frame and a collection box; an engine, a processor and a second wireless communicator are mounted in the equipment box; a laser light source and a fluorescent light receiver are mounted on the measuring frame; a small hole is formed in the bottom surface of the collection box, a toothed plate capable of vertically moving up and down is mounted in the collection box, and the rising and falling state of the toothed plate is controlled through an electromagnet; brackets are arranged on the left side and the right side of the collection box respectively; reels are mounted on the right side of the collection box and the left side of the equipment box in a skew symmetry manner. The monitoring device is characterized in that the omen for the occurrence of algal bloom in a lake and a reservoir is detected through real-time monitoring of the full life circle of bottom mud frustule after dormancy, and the blank incapable of performing predication at very early time on algal bloom is filled in.

Description

technical field [0001] The invention relates to the technical field of water environment protection, in particular to an algae recovery and vertical migration measuring device and monitoring method for early warning of water blooms. Background technique [0002] Algal bloom disasters in lakes and reservoirs have a wide spread and serious secondary disasters. Rapid and accurate early warning of algal bloom outbreaks is very important for the water environment management of lakes and reservoirs. The essence of water bloom is the rapid growth of algae density in the water body from low to high after a sudden change in the water ecosystem. The reasons that affect the outbreak of water bloom include abiotic factors and biological factors. Abiotic factors (such as water flow, meteorology, water quality, etc.) It is the cause of water bloom outbreak, and biological factors (physiological characteristics and reproduction strategies of algae) are the internal causes of water bloom ou...

AI Technical Summary

Problems solved by technology

[0004] 1. The mathematical model is to solve the ordinary differential equations that approximately describe the water ecosystem. The approximate parameters involved often exceed dozens. It can only simulate the seasonal change trend of the water ecosystem change, and cannot predict the algae bloom in real time. The prediction error often exceeds several weeks to months, the problem cannot be overcome even by improving the model equations or solution techniques

[0005] 2. Prototype observation methods (including remote sensing technology) can only provide rapid notification and early warning after local water bloom outbreaks, and cannot achieve early warning and forecasting. The reason is that the process of water bloom outbreaks is very short, and there will be a large number of algae within a few hours. Aggregation and reproduction cover the water surface. The existing technology can only measure the environmental factors that affect the outbreak of algal blooms and the existing quantity of algae, but cannot observe the physiological characteristics and reproduction strategies of algae cells in the water in real time.

[0009] 2. Common algae monitoring equipment, such as the probe-type algae fluorescence instrument, etc., due to design defects, can only measure the number of algae in the surface water body, and cannot directly, real-time, and microscopically monitor the recovery of algae cells in the sediment and the algae in the water. The vertical migration between the sediment and the overlying water cannot know the recovery time and migration flux of the algae after overwintering in time

Images