Research on Ecological Compensation Priority of Farmland Ecosystem Based on the Estimation of Ecological Service Value in the Beijing-Tianjin-Hebei Region

The coordinated development of Beijing-Tianjin-Hebei Province has become major national strategy of the CPC central committee and the state council under the new historical conditions. The farmland of Hebei Province has made great contribution to food supply for Beijing and Tianjin in a long time. Hebei Province has played a more important role in the ecological function especially. The geographic grid method was adopted in this study to account the ecosystem service value of farmland in Beijing-Tianjin-Hebei region. The result showed that total farmland ecosystem service value in 2015 was 110.3 x 109 yuan and the proportion of ecosystem service value in Hebei Province was the highest which reached up to 92.56%. Zhangjiakou had the largest ecological compensation priority and the result was 0.31. The lowest of the ecological compensation priority was 0.0007 in Beijing. The results showed that the ecological compensation of Zhangjiakou and Chengde in the northwest hill region should be given priority to ecological compensation.