The forest ecosystem service value in Nan County in 2014 was evaluated with the methods including opportunity cost technique, shadow engineering method, market value method, shadow price method, travel cost method, and the carbon tax method based on the database of the forest resource inventory data, the social public data, field sampling and investigation data. The result indicated that the total value of forest ecosystem service in Nan county was ¥ 1959.96 × 10^6 RMB yuan. The forest ecosystem services were ranked according to their values ...