? 1, protect the ecological environment in the source area of the Three Rivers, and ensure the survival of people in China and the world and the sustainable development of social economy; The source of the Three Rivers is the "source of life" in most parts of Asia and China. Protecting the source of the Three Rivers means protecting our own water and life.

? 2. Protect the biodiversity of the world's biological species; Sanjiangyuan area is the highest altitude and the largest humid plateau area in the world. Wetland ecosystem has the basic characteristics of land-water transition, system fragility, functional diversity and structural complexity. It plays an irreplaceable role in conserving water, slowing runoff, storing flood and preventing drought, preventing and reducing disasters, degrading pollution, maintaining biodiversity, providing various resources for human production and life, and regulating climate, and has great ecological functions.

? 3. Promote the social development of the Three Rivers Source area and improve the living conditions of the local people.

The ecological environment of the Three Rivers Source is not only vital to the survival and economic and social development of local people, but also affects the social and economic development of the middle and lower reaches of the Three Rivers Source and the safety of people's production and life, which is related to the future sustainable development of China and the balance of human ecology.

Therefore, protecting the ecology of the Three Rivers is not only an important requirement for the western development, but also an important condition for the sustainable development of China and even the world.