Second, with minimal environmental impact. To achieve the least impact on the environment, pay attention to the following aspects: First, to prevent the construction of the soil, air and water pollution; second is to make use of local building materials. It is also a measure of minimal environmental impact, because it reduces the impact of transport on the environment, and can support local economic development: three is the reuse of building materials in building selection, consider the material can be recycled, which is to encourage the use of recycled building materials.