The design and implementation of wetland evaluation system of Beijing based on models
基于模型集成的北京湿地价值评价系统设计与实现

The research on the evaluation of wetlands can show the function and value of wetlands clearly to the people and governors,which is of great significance to the protection and management of wetlands.This paper studied the valuation methods of wetland functions,such as air regulation,climate regulation,water storage and flood control,water purification,groundwater recharge,erosion control,biodiversity maintenance,dust uptake,product output,culture heritage and recreation.On the basis of these valuation methods,we built 12 wetland valuation models via ArcGIS Model Builder and other modeling tools,and then designed and implemented the Beijing wetlands evaluation system.The system was built on the basis of the Microsoft.NET environment,using ArcGIS Engine component. Some conclusions can be drawn as follows.(1) We established a model and tool set first,then packaged them to a unified module,and finally developed the application systems.This method for the design and development of the wetland value assessment system is simple,easy to use,and can provide reliable results.(2) The system can manage the data of wetland resources effectively,calculate each value of each function and the comprehensive value of the wetland resources quickly and easily,acquire the value of each wetland patch,each wetland type and any statistical unit of Beijing wetlands,and it can also compile wetland value maps and give statistical reports.(3) The wetland evaluation system provides an automated,streamlined,standardized measurement method,which is potential for replication.