In valleys and ravines, which method of landfilling is deemed best?

The method of landfilling that is best suited for valleys and ravines is the area method. This approach involves distributing waste over a large area, which allows for better compaction and facilitates the management of leachate. By utilizing the natural contours of valleys and ravines, this method can enhance the stability of the landfill, minimizing the risk of erosion and ensuring that waste is contained effectively.

In valleys and ravines, the area method can capitalize on the natural topography to improve drainage and reduce the potential for water accumulation, which could lead to environmental hazards. Additionally, it allows for better integration with the surrounding landscape, promoting effective soil cover and mitigating odor and pest issues.

Overall, the area method aligns well with the environmental health principles of minimizing disturbance and adhering to proper disposal practices, making it the preferred choice in such geographic settings.