Spatial Decision Support System for Reclamation in Opencast Coal Mine Dump

摘要

This paper describes the development and applications of a decision support system that uses spatial information techniques and field survey data. The SDSS can enable the various levels of the target groups to easily identify the best available solutions of reclamation problems. To make reasonable decisions, the overall purpose of the SDSS is to provide a support tool for site evaluation and selection of the most appropriate reclamation schemes. The system consists of three models: (1) an evaluation model for reclamation potentiality based on the physical, chemical, and biological growth-limiting factors in the target area. (2) Fuzzy similarity models to determine the native plant species and metal-tolerant plants. (3) A case-based and rule-based model to select the most appropriate reclamation schemes based on the similarity in the physical, chemical, and biological growth conditions. The models are developed in the C# language and integrated with GIS. All these models are integrated in the SDSS which is able to provide information concerning the recommended reclamation technologies for each case. Finally, the uses of the SDSS in two cases which are Haizhou (China) and Mao Moh Mine (Thailand) are described.