The food web includes plants, animals and people as well as the habitats that support them. The deep roots can help infiltrate water and hold soil in place. Soil Erosion: Soil that washes into a water body makes it muddy and murky. Phosphorus Management Plan Guide—Use this template to help design your PMP. Forms and tables may be completed electronically or printed out and completed manually. Once you put salt down, it doesn’t go away. It washes into our storm drains and ends up in our local lakes and streams.