In order to arouse human protecting consciousness to water resources, and establish the harmonious development between human and nature, it needs to understand the source, harmfulness and countermeasures of the water-body eutrophication pollution.

• 为了唤起人类对水资源的保护意识，建立起人与自然的和谐发展，需要了解水体富营养化的污染来源、危害及防治措施。