Contingent Valuation of the Economic Benefits of Restoring Ecosystem Services of Zhangye Prefecture of Heihe River Basin Contingent valuation of the existent economic of Giant Panda (Ailuropoda melanoleuca) Using the contingent valuation method to assess the value of ecosystem diversity maintenance of Shandong‘s marine protected areas Perception and attitudes of local people concerning ecosystem services of culturally protected forests Improving validity and reliability of contingent valuation method through reducing biases and errors: theory, method and application Testing reliability of the contigent valuation method:a case study on the tourism attraction non-use value Difference between the WTP and WTA in cultural service value evaluation of agriculture ecosystems: Shanghai pond aquaculture case study Measurement and analysis of asymmetry between WTP and WTA values in the evaluation of environmental value: the case of coastal environmental protection in the Guangxi Beibu Gulf Economic Zone Research progress of contingent valuation method for application to agricultural ecological compensation Spatial differentiation research of non-use value WTP based on the residents’ecological cognition:taking the sanjiang plain as a case The assessment of non-market value of agricultural land resource in Wuhan Using CVM to estimate the restoring cost of Maqu grassland nfluencing factors analysis of willingness to pay for ecosystem services evaluation of Hongze Lake Comparison and application of different contingent valuation methods in measuring total economic value of restoring Ejina Banner‘s ecosystem services Evaluation on non-use values of typical lake wetlands in Wuhan