Agriculture Reference
In-Depth Information
Planar intercept (PI).
A sampling method where the counts or measurements of
woody fuel particles that intersect a two dimensional sampling plane are used to
compute woody fuel loading.
Potential vegetation type (PVT).
A potential vegetation type is the vegetation
type that would eventually dominate an area in the absence of disturbance.
Shrubs.
Any woody, non-tree species. The selection of what constitutes shrubs is
determined by management objective; vines, sub-shrubs, krumholtz, and other
woody life forms can be included in shrubs if designated by the objective.
S.M.A.R.T. Objectives.
A comprehensive way to specify fuel sampling objectives.
SMART stands for Specific, Measureable, Achievable, Relevant, and Time-based
Snag.
A standing dead tree that is sometimes considered coarse woody debris
(CWD) and part of the woody fuel component.
Specific Gravity.
The ratio of the density of a fuel particle relative to the density
of water at a specific temperature, pressure.
Surface-Area-to-Volume Ratio (SAVR).
The ratio of the area of the surface of
a fuel particle(s) divided by the volume of that same fuel particle(s). SAVR has
units of ft
−1
or m
−1
Synthetic aperature radar (SAR).
An active sensor
Terrestrial scanning lidar (TSL).
A ground-based lidar sensor that scans an area
and creates a three dimensional image of return distances for localized mapping
of fuel.
Timelag.
A term used to define the length of time needed to dry a woody fuel
particle approximately 63 % of its moisture. For a 1 h timelag woody fuel, it
would take 1 h to dry the fuel by 63 % of the starting moisture content.
Woody fuels.
Any downed, dead organic biomass that originates from trees,
shrubs, and other dendrites.