'high forest' is a correct and usable phrase in written English.
You can use it to describe a forest that is tall and dense. For example, "The high forest provided a serene backdrop to an otherwise chaotic day."
A high forest coverage rate contributed to the better air quality, increasing or preserving the forested areas would help mitigate the air pollution.
Brookside to High Forest.
More recently, Brazil, the country with more tropical rainforest than any other, broke the historic link between high forest loss and growing agricultural output.
Scrub is a wonderful, bug-rich, habitat, particularly when mixed with a patchwork of grassland and mature trees, but it takes effort to maintain, and unless periodically cut down, it evolves into high forest.
He said differences in monitoring approaches - some areas are observed from the ground, some from the air, and some from space - are compounded by officials' fear of retribution if they report high forest fire statistics for their region.
But in an overgrown forest, flames can climb the small trees into the high forest canopy, creating a "crown fire" that can leap with the winds and take out thousands of acres quickly.
As well as measuring how the forest ecosystem is responding to the 2010 Amazon drought – the worst ever recorded – the technology accurately monitors deforestation and degradation, and has revealed unexpectedly high levels of biodiversity in high forest on the Andean rim of the Amazon basin.
In Hainan's high forest reserve of Bawangling, a nondescript bird (a common white-eye, or a bird unknown to science?) flits into view for a split second; before I have fumbled with the focusing knob on my binoculars, it has vanished back into the gloom.
High, forest-clad mountains, in places exceeding 7,000 feet (2,100 m) in height, have deterred inland settlement.
It lies on an isthmus linking the Boztepe Peninsula to the mainland and is shut off from the Anatolian Plateau to the south by high, forest-clad mountains.
A range of high forest-clad mountains runs north to south, broken in the centre by a plain drained by the Layou River, which flows to the west; the highest points are Mount Diablotins (4,747 feet [1,447 metres]) and Mount Trois Pitons (4,670 feet [1,424 metres]).
