Research progress and prospects of wetland ecosystem services and value assessment in the Guangdong-Hong Kong-Macao Greater Bay Area
Wetland ecosystem has been under the dual stress of climate change and human activities in Guangdong-Hong Kong-Macao Greater Bay Area in recent years,resulting in sharp decline of wetland area and more complexities in structure,function,service,and ecological process of the wetland ecosystem,which all intensified the assessment and protection of wetland ecosystem services.Based on the above problems,how to build a targeted and applicable ecosystem service evaluation system in the wetland ecosystem with diverse types and complex structures of the Greater Bay Area,and then to carry out systematic and targeted ecological services and asset evaluations on natural resource and ecological safety assessment become one of key and important subjects in the Greater Bay Area.Taking the wetland ecosystem in the Guangdong-Hong Kong-Macao Greater Bay Area as the analysis object,it clarifies the research progress of wetland ecosystem services and their value.There are still insufficient wetland remote sensing monitoring capabilities,and wetland ecosystem service value evaluation system is not applicable and other key issues.Limited by the climatic characteristics,complex surface environment and wetland types of Guangdong-Hong Kong-Macao Greater Bay Area,the evaluation of wetland ecosystem service value in this area has become more difficult.In view of the current challenges in the assessment of the wetland ecosystem service value in Guangdong-Hong Kong-Macao Greater Bay Area,three important research and application directions of wetland ecosystem service value assessment in the Greater Bay Area are prospected,achieving accurate extraction of wetland parameters and construct a high-time resolution wetland data set,constructing a service value evaluation system for the wetland ecosystem in the Greater Bay Area,and establishing a wetland resource value evaluation system to realize the development of wetland from"resource evaluation"to"asset accounting".
Guangdong-Hong Kong-Macao Greater Bay Areawetland ecosystemservice valueevaluation method
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