An effort has been made to italicize technical words or phrases and clearly define them in the glossary . Rapid regeneration of forestland is both economically and environmentally important. Root systems help stabilize soils and thereby reduce the risk of erosion .
Trees also intercept water and impede storm water runoff.
Many sites require some type of treatment to accomplish quick and effective regeneration of the desired tree species, or to reduce some undesired effects of logging. Sites may also be prepared simply to make an area more amenable to planting. For natural regeneration , certain site preparation methods may enhance sprouting or seed germination. Many site preparation techniques are available. The technique used depends on soils, slope, condition of the site, natural vegetation, crop tree species, and cost.