Forests are dynamic systems. Trees are constantly growing, dying, and being replaced by new trees. Wildfire, windstorms, insects and disease all change forests every year. Wildlife depend on forests for their survival.
Forests also create value for people in many different ways, from providing privacy and high-quality recreational opportunities, to wildlife watching, to clean water, to revenue from the harvest and sale of timber.
Tree Farming is about active management to make the best of your woods better, while also providing for the needs of a growing society. Wood is a renewable resource. As Carbon Man points out, wood actually pulls carbon from the atmosphere, mitigating global climate change, as it grows.