Turpentine oil is generally produced in countries that have vast tracts of pine trees.
Farming and stock raising are economically significant, but lumbering, based on vast tracts of pine trees that cover much of the county, has become a major activity.
The central region is characterized by large tracts of oak trees, with elegant birch forests in the northern portions, as well as distinctive black alder and aspen groves.
In one, tracts of pine trees exposed to elevated levels of the gas initially absorbed large amounts and had a short growth spurt, but then reverted to typical growth rates.
But isn't an investment in tracts of land and trees awfully cyclical?
As the climate warms, the mountain pine beetle has managed to winter over and destroy vast tracts of whitebark pine trees, which produce pine nuts that bears eat.
As in other areas of southern Louisiana, the loss of once-vast tracts of marshland and trees has left the island exposed to hurricanes and frequent flooding has stripped the land, made farming impossible and forced residents into an annual ritual of rebuilding.
We also found that individuals living in "greener" areas of the city were less likely to die during and immediately after heat waves with an OR = 0.96 (95% CI: 0.94, 0.99) for those living in census tracts with a proportion of grass and shrubs above the median value, and an OR = 0.97 (95% CI: 0.94, 1.00) for those living in census tracts with a proportion of trees above the median value.
Shunning the society of the local élite, the Utzons bought a large tract of gum-tree-shaded land an hour north of the city, between a wide ocean beach and a tranquil harbor, where their neighbors were boat builders and beachcombing bohemians.
At least 435000 acre of rice paddies were destroyed along with huge tracts of mango and banana trees.
