| Lowlevel gold mining also occurs in this area, which threatens to increase erosion and siltation of aquatic systems. |
| Additionally, once logged, many national forests are prone to flooding, mudslides and stream destruction due to runoff and siltation. |
| Habitat degradation, facilitated largely through increased siltation due to unsound land use practices needs to be further curtailed. |
| Swan mussels are highly sensitive to siltation and other environmental changes. |
| The objective is to minimise poaching, overgrazing and soil erosion as this can lead to siltation and nutrient enrichment of surface waters. |
| The environmental effects of careless logging have led to soil erosion, polluted rivers, siltation and severe flooding. |
