基于CVM的城市河道改造生态环境价值评估OA北大核心CHSSCDCSTPCD

Based on the ecological landscape value assessment of urban river course transformation,the application principle and application basis of contingent valuation method(CVM)in the ecological value assessment of urban river course transformation are analyzed,and the internal compatibility between the application of CVM and the model assessment of ecological environment landscape value of urban river course transformation is constructed and expounded.And combined with the Hangpujian River raised levee alternative construction of sluicing scheme as an example.The total willingness to pay calculated by the expected mean method and the three-phase pricing method is 12.06 billion Yuan/a and 11.85 billion Yuan/a respectively,the total willingness to accept is 13.08 billion Yuan/a and 15.12 billion Yuan/a respectively,and the ratio of total willingness to pay to total willingness to accept is greater than 1.This shows that only from the perspective of ecological and environmental value,people prefer the government to invest in the construction of gates compared to the raising of levees.