As early as 1991, the Corbett National Park played host to 3237 tourist vehicles carrying 45,215 visitors during the main tourist seasons between 15 November and 15 June. This heavy influx of tourists has led to visible stress signs on the natural ecosystem. Excessive trampling of soil due to tourist pressure has led to reduction in plant species and has also resulted in reduced soil moisture. The tourists have increasingly used fuel wood for cooking. This is a cause of concern as this fuel wood is obtained from the nearby forests, resulting in greater pressure on the forest ecosystem of the park. Additionally, tourists have also caused problems by making noise, littering and causing disturbances in general.