How many meters is the ecological red line of Tongli Lake?

Tongli Lake ecological red line is 30 meters. The essence of ecological protection red line is the bottom line of ecological environment security. Its purpose is to establish the strictest ecological protection system, put forward higher regulatory requirements for ecological function guarantee, environmental quality and safety and natural resource utilization, and promote the balance of population, resources and environment and the unification of economic, social and ecological benefits. It is set to 30 meters. The red line of ecological protection has the characteristics of system integrity, mandatory constraint, coordination, dynamic balance and operational accessibility. Specifically, the red line of ecological protection can be divided into the bottom line of ecological function guarantee, the bottom line of environmental quality and safety and the upper limit of natural resource utilization. Tongli Lake is located in the development zone of Suzhou City, Jiangsu Province, China, with an area of about 2.4 square kilometers, in the east of Tongli Town. In February, 2005, it was listed in Jiangsu Lake Protection List.