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Indoor manual ravine stream device and method capable of simulating ravine stream ecological system

A technology of ecological system and flow system, applied in the field of ecology and environmental science, can solve the problems of poor repeatability of uncertain factors, insufficient research system, poor operability, etc., to achieve reusable devices, expand the scope of use, and have a wide range of uses Effect

Active Publication Date: 2020-09-22
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Artificial streams are an effective tool for ecological research, which overcomes the shortcomings of traditional field experiments such as many uncertain factors and poor repeatability, and can carry out related research without destroying the ecological environment of streams
[0004] In addition, various emerging pollutants (such as drugs and personal care products, microplastics, nanomaterials, gene toxins, etc.) are frequently detected in the water environment, seriously affecting the structure and function of aquatic ecosystems
Most of the traditional studies are exposure experiments on model animals of a certain trophic level, which cannot simulate the real environment well and accurately evaluate the impact of pollutants on the entire ecosystem
Patent application number 201910163367.8 discloses an artificial stream device for simulating environmental changes under field conditions, mainly to solve the problem of insufficient research systems for existing devices to simulate various environmental factors (temperature, flow rate, nutrients, etc.), but its composition Many parts, poor operability

Method used

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  • Indoor manual ravine stream device and method capable of simulating ravine stream ecological system
  • Indoor manual ravine stream device and method capable of simulating ravine stream ecological system
  • Indoor manual ravine stream device and method capable of simulating ravine stream ecological system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] The simulated artificial stream belongs to the mesocosmic scale ecosystem, and the purpose is to explore the effect of the psychoactive drug ketamine (also known as K powder) on the stream ecosystem. The outer dimension of the designed tank is 170cm×40cm×16cm, and the size of the paddle blade is 13cm long×14cm wide. Set a drug concentration (0.2 μg / L) close to the environmental exposure level in the actual environment and a blank control group, set 4 repetitions for each concentration, a total of 8 sinks, 8 sinks are randomly placed on the table, 4 It is a group, that is, one motor drives 4 paddles to rotate. Put 60L of dechlorinated tap water in each tank, the flow rate is controlled at 0.30m / s, and the fluorescent lamp is turned on and off by simulating the natural light and dark cycle. Before the start of the formal experiment, 6 landscape stones of known volume were placed in each tank, and the materials on the stones of the studied Jingmi Diversion Canal stream we...

Embodiment 2

[0076] This example is to explore the impact of the dam on the stream ecosystem. The size of the device is the same as above. The 8 water tanks are divided into two groups. One group of water tanks is inserted with a 5cm-high baffle to simulate the upstream and downstream of the dam barrier, and the other group is blank. In contrast, except for the presence or absence of baffles, the other initial conditions are the same. The random placement of the tanks, the operation of the artificial stream and the data monitoring are the same as in Example 1. Observe the changes in the biological communities in the upstream and downstream of the stream and whether the dam has a respiration effect on the entire stream ecosystem. , photosynthesis, etc.

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Abstract

The invention discloses an indoor manual ravine stream device capable of simulating a ravine stream ecological system. A hollow-square water tank with an opening in the top is included, an entity partis arranged in the middle of the hollow-square water tank, a sunken position is arranged in the middle of the entity part, the sunken position is used for placing of a nutritive salt adding device, the same number of stones derived from a ravine stream to be researched are evenly placed in the hollow-square water tank, a telescopic steel structure support is mounted over the hollow-square water tank, a fluorescent lamp and an illumination regulation device are arranged on the steel structure support, a temperature and humidity monitoring instrument is further included, multiple concave inserting openings are formed in the inner walls of the two sides of the hollow-square water tank, a motor is connected with a motor rotating speed controller, a connecting shaft of the motor is fixedly provided with a wheel paddle, a water flow capable of circularly flowing is arranged in the hollow-square water tank, a water inlet and a water outlet are formed in the hollow-square water tank, and areconnected with a water pump and a hose correspondingly, a screen net is arranged at the connecting position of the hose and the water pump, a photometer is arranged on the indoor manual ravine streamdevice, and the invention further discloses a method using the device for carrying out an experiment.

Description

technical field [0001] The invention belongs to the field of ecology and environmental science, and more specifically relates to an indoor artificial stream device for simulating stream ecosystems. [0002] The invention also relates to a method for carrying out experiments using the device described above. Background technique [0003] Artificial streams are an effective tool for ecological research, which overcomes the shortcomings of traditional field experiments such as many uncertain factors and poor repeatability, and can carry out related research without destroying the ecological environment of streams. [0004] In addition, various emerging pollutants (such as drugs and personal care products, microplastics, nanomaterials, gene toxins, etc.) are frequently detected in the water environment, seriously affecting the structure and function of aquatic ecosystems. Most of the traditional studies are exposure experiments on model animals of a certain trophic level, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B1/02
CPCE02B1/02
Inventor 徐建郭昌胜金小伟张文萍陈力可张艳
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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