Liancheng National Nature Reserve
Liancheng National Nature Reserve is located in Gansu Province in the Yellow River Basin. It consists of , of which is core area, is buffer area, and the remaining is experimental area mainly targeted for the protection of the spruce ecosystem, especially "Picea wilsonii". The reserve is located approximately between 36°33' and 36°48' North latitude, and between 102°36' and 102°55' East longitude. The climate is temperate continental monsoon, the annual average rainfall is 419 cm per square meter.