Forestry is the science, art, and craft of creating, managing, using, conserving, and restoringforests and associated resources to meet desired goals, needs, and values for human benefit. Forestry is practiced in plantations and natural stands. The main goal of forestry is to create and implement systems that manage forests to provide environmental supplies and services. The challenge of forestry is to create systems that are socially accepted while sustaining the resource and any other resources that might be affected.
Forests cover approximately 9.4 percent of the Earth's surface (or 30 percent of total land area), though they once covered much more (about 50 percent of total land area), in many different regions and function as habitats for organisms, hydrologic flowmodulators, and soil conservers, constituting one of the most important aspects of the biosphere. Forests are present in many biomes:
Sakari Pinomäki (1933–2011) was a Finnishsystems engineer, who pioneered the mechanized forestry industry. He was the founder of PIKA Forest Machines which produced the first purpose-built forest machine in 1964. Sakari Pinomäki's first company, PIKA Forest Machines, is credited with designing the first self-propelled tree length timber processor, the PIKA Model 60, in 1968, and the first fully mobile timber "harvester", the PIKA Model 75, in 1974. These machines differed significantly from other "retro-fitted" forestry machines in that they were designed from inception to be timber harvesting and processing equipment, and were not conventional farming or earth moving equipment with additional apparatus welded onto them to allow timber processing work to be possible.