Main Wetland Types in Daqing and Estimation of Their Values of Degrading pollutants
The main wetland types and their distribution in Daqing were characterized with the data from interpretation of LANDSAT TM remote sensing images and the data from field survey in 2004, using Geographic Information System (GIS). The substitution method was adopted to estimate the values of degrading pollutants of the wetlands in Daqing. Results showed that, the function of pollutants degradation is most evident with natural wetlands, followed by paddy fields in artificial wetlands. The value of pollution degradation in natural wetland was estimated to be RMB 17.90 billion, and that in paddy fields was RMB 0.0017 billion. The total value of pollutants degradation in wetlands in Daqing was RMB 17.92 billion.
DaqingWetlandPollution degradationSubstitution methodEstimated value
NETL
NSTL
万方数据
维普
