Review: the determination of Longitudinal diffusion coefficient for coal gangue pollutants in the natural wetland

摘要

The longitudinal diffusion coefficient is one of the important coefficients not only for the natural river but also for the natural wetland. In China, coal gangue is widely used for backfilling subsidence which is caused by mining behavior. Here, we summarize research methods of the longitudinal diffusion coefficient for coal gangue pollutants in natural wetland. It is Comparing the moment method, linear graphic method, regression analysis method and calculus optimization method and so on, and analyzing their advantages and disadvantages.