estimation of future needs of main resources and the potential environmental impact of huge resource consumption in terms of the china's goal of quadrupling its gdp by 2020;
估计未来主要资源的需求及2020年gdp翻两番时大量资源消费对环境的潜在影响;
therefore, the imputed environmental cost obtained in this project might under evaluated the potential environmental impact to the future brought by the current industrial activities.