Framework and indicator system of urban material flow analysis Evaluation of ecological marine islands construction based on material flow analysis:a case study of Changhai County Material flow analysis and data envelopment analysis based regional eco-efficiency analysis: case study of Jiangsu Province Economic and environmental efficiencies based on material flow analysis and data envelopment analysis:a case study of Liaoning Province Material flow analysis (MFA) of an eco-economic system: a case study of Wujin District, Changzhou A critical review of material flow analysis (MFA)