Decreased maintenance increases safety as back fencerows, corners, rocky spots, and steep areas are the most dangerous to maintain with a tractor and brushhog. Now that both the human population and our ability to harvest, process, and use trees are increasing geometrically, mankind is having a tremendous impact on the amount of naturally regenerated timber. There are methods of harvesting and timber management that enhance natural regeneration, but it does not always produce trees that are suitable for society's needs and wants. Harsh or unusual weather conditions can delay or prevent successful natural regeneration for many years. With the present emphasis on the environment and the role trees play in a healthy environment, it is increasingly important to reforest harvested areas as soon as possible.
Tree planting is used more frequently for reforestation than in the past.
Planned tree plantings are economically viable and environmentally sound. There have been many examples of successful plantings, such as the Southern Pine Plantation system and the shelterbelt plantings of the 1930s and 1940s. Planting the right species on appropriate sites provides trees that are suitable for human wants and needs and can also shorten the time it takes to get the trees up and growing. Proper planning and aftercare can overcome many harsh or unusual weather conditions. Proper selection of tree species and their placement are key factors.