Abstract:Abstract:By taking Lanzhou City as study area,the model system that can comprehensively and quantitatively assess the impacts of land use scale and structure adjustment on environment wasestablished including diversity index model,dynamic model,ecosystem service value evaluation model,and eco-footprint and eco-capacity model.Results from the study showed that the ecosystem service value of Lanzhou City increased by 390 million yuan and the ecological deficit dropped 14 m2 per head.The overall landuse planning is basically reasonable and is valuable in developing local economy and preserving its ecological environment.Moreover,the model system can objectively assess the impacts of landuse scale and structure adjustment on environment and thus,it is meaningful to apply and popularize the model.