Method for diagnosing health of watershed ecology system

Abstract

The invention provides a direct-viewing, accurate and practical combined application method of 'water body sampling, bionidicator, water environmental simulation and watershed health diagnosis' for diagnosing health of a watershed ecology system aiming at the problem that watershed pollution affects the health of the ecology system and dominant species and pollutants are different in different watershed biology systems. The method comprises the following steps of: firstly, rating the dominant species of the watershed biology system, and analyzing types of key pollutants of the watershed so as to select a biological indicator; secondly, designing a water environment simulation area according to the similarity law; thirdly, determining a watershed sampling point, setting a water intake so as to introduce watershed water body into the water environment simulation area, and planting and / or breeding the biological indicator in the water environment simulation area; and finally, draining the wastewater in the simulation area into the watershed water body by using a discharging system. By adopting the method, the health of the watershed biology system is determined by observing the health condition of the biological indicator in the simulation area, and the method has high scientificity and practicality, is suitable for health diagnosis of the watershed biology systems which are in different scales and contain different pollutants, and has the advantages of direct viewing and accurate determination.

Description

technical field [0001] The invention belongs to the field of water environment quality management in watersheds, and in particular relates to a combined application method of "water body sampling + biological indicator + water environment simulation + watershed health diagnosis". The combined application method is widely applicable to water ecosystems of different scales, mainly for the diagnosis of the health status of aquatic plants and aquatic animals. Background technique [0002] With the deterioration of the environmental quality of the watershed, the pollutants in it have seriously affected the health of the watershed ecosystem, and even water pollution accidents occur frequently. How to detect pollutants in the water body as early as possible may threaten the health of the watershed ecosystem? It is a key link to take further measures to avoid watershed pollution accidents, and it is also an important topic of watershed pollution prevention. Especially in China, env...

AI Technical Summary

Problems solved by technology

For the use of indicator organisms to diagnose the health of watershed ecosystems, most of them are limited to selecting indicator organisms for a certain pollutant, so that when other pollutants appear in the watershed, it is impossible to make a timely judgment on the decline in the health of the watershed ecosystem.

Images