[Objective] The study aimed to analyze the harmonious development of economy in Niyang River basin under environmental constraint.[Method] According to the principles of index definition like balance,diversity,comparability and so forth,we constructed the indicator system of harmonious development of economy in Niyang River basin firstly,then empirically analyzed the status quo of harmonious development of economy in the basin by using factor analysis method.Finally,some suggestions for promoting the harmonious development of economy in Niyang River basin were put forward.[Result] Three first-class indicators,containing nine secondary-class indicators,were included in the indicator system of harmonious development of economy in Niyang River basin,namely ecological economic,rural non-agricultural development and service economic indicator.To promote the harmonious development of economy in Niyang River basin lies in further improving and developing its ecological economy,rural non-agricultural development and service economy.[Conclusion] The research could provide scientific references for the harmonious development of economy and protection of ecological environment in Niyang River basin.
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