Simulation and Assessment of Mine Landscape Reconstruction Using Analogue Landform and Environmental Design Criteria

Environmental disruption from mining activity has increased markedly in the 21^st century leading to increased emphasis on reconstructing natural environmental processes in post-mining landscapes. We present simulation and assessment approach to designing post-mining landforms at Ranger uranium mine in Northern Australia. A mine landform design was developed from mine planning estimates of waste rock and pit volumes. Landform design parameters were developed from analogous natural landscapes using digital terrain analysis. Evaluation of erosion, water balance and visual impact identified areas of localized erosion and links between soil reconstruction and the viability of native woodland ecosystems. The simulation and assessment approach identified where further refinement of the ecosystem reconstruction strategy was needed. In addition, it provides the basis for communication of plans to a wide audience, including traditional land owners.