It is a system where planned program of treatments during the whole life of a tree specifically designed to achieve specific stand structural objectives. This program of treatments integrates specific harvesting, regeneration, and stand tending methods to achieve a predictable yield of benefits from the stand over time. Silvicultural system is mainly the science behind sustainable, eco-conscious logging, and covers all activities from planning, harvesting, and replanting to tending to the new trees. Each system well is developed to meet the unique needs of each forest site and take into consideration ecological factors such as forest age, tree species and ecosystems.