Why should Erhai Lake in Dali be protected?

Erhai Lake is the second largest freshwater lake in Yunnan and the mother lake of Dali, which has nurtured the people around Erhai Lake for thousands of years. Erhai Lake is not only the most important scenic spot in Dali, but also the biggest water source for people living and producing around Erhai Lake. Whether Erhai Lake can be well protected is related to the well-being of the people.

In recent years, the local government has obviously realized this. A lot of work has also been done in the protection of Erhai Lake. It established Erhai Lake Protection Administration, built some sewage facilities, put forward slogans such as "protecting Erhai Lake like protecting eyes", "cleaning up Erhai Lake and prospering Dali", and made a decision of "developing the eastern ocean and protecting the western ocean", strictly controlling rural housing construction around Erhai Lake and controlling agricultural pollution.

However, the protection of Erhai Lake is a very huge systematic project, and the local government's protection work has obviously not achieved its due effect. In other words, some decisions, laws and regulations put forward by local governments have not been effectively implemented. In management, it is still not perfect, and there are still many loopholes.

The protection of Erhai Lake should be systematically planned from the aspects of water source, sewage discharge and ecology. However, in recent years, the protection of Erhai Lake has basically stayed in the state of building some local sewage facilities, salvaging when garbage appears, posting a few slogans and doing several publicity activities. What's more, it is to take away the cattle of ordinary people and encourage the use of organic fertilizer in rural areas. These measures basically belong to the treatment of headache and foot pain.

Even selective law enforcement and management make the illegal buildings around Erhai Lake out of control, and it is not uncommon for sewage to be discharged directly into Erhai Lake. People are not allowed to build houses, but enterprises are allowed to build tall buildings and even fill the sea. People are not allowed to raise cattle, but they condone illegal stone digging and sand mining in Erhai water source. Combing the news and information about Erhai Lake in Dali in recent ten years, this phenomenon is exposed almost every year. Even the sewage projects in some places are still of poor quality and cannot achieve the effect of sewage discharge.

Erhai Lake water system belongs to a circular ecosystem, and its water source, water source, wetland and various biological chains all depend on Erhai Lake. Only considering the interception of pollution, it is obviously difficult to make the protection and treatment have obvious effects when the water quality of Erhai Lake has been seriously polluted locally.