Improvement of ecosystem service value from ecological restoration: a case of ecological environment remediation in Helan mountain

Ningxia has carried out comprehensive improvement of the ecological environment in Helan Mountain, continuously promoted ecological protection, restoration and construction in Helan Mountain, effectively improved the ecological quality of Helan Mountain, systematically enhanced ecological functions, and built a solid ecological safety barrier in northwest China and even the whole country.Through the calculation of ecosystem service value, the value of restoration was significantly increased, and the main contribution was from the change of land cover.