Arquivos: Glossário

Has a pH greater than 7; pH modifier in the U.S. Fish and Wildlife Service wetland classification system; in common usage, a pH of water greater than 7.4.

The level of alkalis in water.

The practice of managing a forest by periodically selecting and harvesting individual trees or groups of trees from the stand while preserving its natural appearance. Most common in hardwood forests.

A forest stand composed of trees of different ages and sizes.

Regression equations calculating biomass based on measured parameters of a tree (or shrub), for example, quantifying the relationship between above-ground tree biomass and the diameter at breast height and tree height of a specific tree species

Relating to mud and/or sand deposited by flowing water. Alluvial deposits may occur after a heavy rain storm.

A water-bearing deposit of unconsolidated material (sand and gravel) left behind by a river or other flowing water.

Fan-shaped deposit of generally course material created where a stream flows out onto a gentle plain.

1) S-shaped channel pattern that is free to meander in a valley. 2) bed materials of silt, clay, sand and gravel are conveyed from upstream.

General term for sediments of gravel, sand, silt, clay, or other particulate rock material deposited by flowing water, usually in the beds of rivers and streams, on a flood plain, on a delta, or at the base of a mountain.