1. Protecting the ecological environment: In the natural ecosystem, recuperation is an important strategy. For example, for the lake ecosystem, recuperation is to reduce the pollution burden and pressure of the lake, let the lake get enough water, dredge the rivers and lakes, expand the environmental capacity of the lake, and protect the health of the lake ecosystem.
2. Restoring economic vitality: Historically, the rest and recuperation policy was implemented after the war or during the socio-economic recession. Its main purpose is to restore and strengthen the country's economic and military strength by reducing social pressure and encouraging population to have children.
3. Maintain ecological security: for natural resources, such as grasslands, forests, rivers, lakes, wetlands, etc. Rehabilitation is to maintain one's own health and prevent the degradation of the ecosystem, thus ensuring the health and ecological service function of the earth's ecosystem.