河北矿区生态修复典型案例生态产品价值比较分析OACHSSCD

The western part of Hebei Province is an important gathering place of natural resources in China,and it is of great theoretical and practical significance to carry out research on ecological restoration and the value of ecological products in abandoned mines in this area.This article selects five typical mines at the eastern foot of the Taihang Mountains in Hebei Province,employs modified ecosystem service value coefficients to evaluate the value of ecological products,and uses the NDVI vegetation index to reflect the effectiveness of mine ecological restoration,aiming to reveal the evolution patterns of the value of ecological products in mines after they are closed.The research results show that:(1)From 2017 to 2022,the values of ecological products in the five typical mines at the eastern foot of the middle section of the Taihang Mountains in Hebei Province demonstrated a significant increasing trend,with an average growth rate of 8.57%.In 2022,the total value of ecological products in the five typical mines reached 1.3753 million yuan.The funds invested in mine ecological restoration require a 5-year payback period,so that the value of ecological products can turn into a surplus.(2)Provisioning services dominate the ecological product value of ecological product value in the study area,accounting for 36.37%to 51.19%of the total.The value of cultural services is the type of ecological product value with the fastest growth.The combined values of the three types of ecological products,namely genetic resources,climate regulation,and recreational services,accounts for more than 60%of the total value of the mines.