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RBAR90 - Percentage of stream corridor buffered to 90 meters classified as barren The percentage of barren land cover 90 meters adjacent to streams
is calculated by summing the number of barren rock land cover cells
underneath stream segments in the 1 km grid cell reporting unit
and within a three cell buffer (90 meters) and dividing by the stream
corridor’s total land area (all cells 90 meters adjacent to
streams minus those classified as water). Cells inside the buffer
zone but outside of the grid cell boundary are ignored. This metric
can be used to identify areas near streams which may be more susceptible
to water run off which may in turn cause soil loss and stream and
lake sedimentation. |