Animal feces can often trigger a high buildup of bacteria within the soil. Anaerobic bacteria, which is commonly found within all animals, can cause serious infections if left untreated. Lawn sod, which has powerful roots that grow deeper than normal grasses, help combat the formation of bacteria by bringing in oxygen into the soil, a nutrient that is toxic to anaerobes.
Anaerobic bacteria is a form of bacteria that doesn't need or oxygen as a nutrient, in fact many forms of this bacteria are intolerant to such nutrients. There are three types of anaerobic bacteria -- obligate anaerobes, facultative anaerobes and aerotolerant anaerobes. These bacteria are found in the soil, within humans, and many other air-free non-aquatic environments.
Homeowners must reapply new sod every few years. This care and maintenance allows for adequate water intake and for new roots to establish a foundation within the soil. Sod roots are deeper than usual grasses but allow for aeration for the rest of the environment.
These types of anaerobes called obligate anaerobes exist by converting energy of an organic compound and through photosynthesis. Oxygen is highly toxic for them. Instead they take the converted energy and reproduce. Anaerobes use hydrogen as an effective energy source but release methane in the process, which can build up over a long period of time and cause damage to the area.
Ensuring proper aeration is the easiest way to avoid complications from bacterial infections. Since anaerobes are highly intolerant to oxygen, aeration within the soil will keep the bacteria's numbers from climbing to a dangerous level. Healthy sod roots will do just this as long as they are grown in the proper manner and not packed in too tightly.
Anaerobic bacterial infections can be created as the bacteria continues to reproduce over time. The easiest treatment for human and plant infections is to apply a small amount of lincomycin-type antibiotics to the local area.