Woodland is a low-density forest forming open habitats with plenty of sunlight and limited shade. Woodlands may support an understory of shrubs and herbaceous plants including grasses. Woodland may form a transition to shrubland under drier conditions or during early stages of primary or secondary succession. Higher densities and areas of trees, with largely closed canopy, provide extensive and nearly continuous shade and are referred to as forest.
Conservationists have worked hard to preserve woodlands. For example, the woodlands in Northwest Indiana have been preserved as part of the Indiana Dunes. Woodland is used in British woodland management to mean tree-covered areas which arose naturally and which are then managed, while forest is usually used in the British Isles to describe plantations, usually more extensive, or hunting Forests, which are a land use with a legal definition and may not be wooded at all.
“All forests have their own personality. I don't just mean the obvious differences, like how an English woodland is different from a Central American rain forest, or comparing tracts of West Coast redwoods to the saguaro forests of the American Southwest... they each have their own gossip, their own sound, their own rustling whispers and smells.
― Charles de Lint, The Onion Girl
The term Ancient Woodland
The term Ancient Woodland is used in British nature conservation to refer to any wooded land that has existed since 1600, and often (though not always) for thousands of years, since the last ice age (equivalent to the American term old growth forest).
Woodlot is a closely related American term, which refers to a stand of trees generally used for firewood. While woodlots often technically have closed canopies, they are so small that light penetration from the edge makes them ecologically closer to woodland than forest.