Integration and optimization analysis of eco-industrial chain in mining area

Abstract：With the theory of ecological economics and some related methods,integration paths and patterns of eco-industrial chain in mining area were studied by analyzing mining resources situation.The integration paths of the eco-industrial chain in mining area should focus on three types of resources in three levels,namely,the vertical integration material of ecological industry chain based on mineral resources;the horizontal integration based on mineral resources development and utilization of by-products and associated mineral resources;eco-industrial chain;and the hybrid integration with non-mining industry and land resources as the material basis.The patterns about mining area eco-industrial chain integration were divided into two broad categories the first one was independent integration mode;the second one was cooperation integration mode.In cooperation integration mode,basing on three different integration paths of the eco-industrial chain in mining area,three fundamental types can be differentiated capital operation,strategic alliance and industrial cluster.Using scale economy theory,with the settling of a series of indexes（environmental control indexes,comprehensive benefit control index,inflow and outflow resource control index）,constraints in eco-industrial chain were summarized by analyzing the resources inflows and outflows in the integrated industrial unit.Through index optimization analysis,an evaluation model of an integrated industrial unit was constructed.