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RHUM0 - Percentage of stream corridor classified as all human land use The percentage of human use land cover adjacent to streams is calculated
by summing the total number of agricultural, urban and non-natural
barren (transitional and mines/quarries) land cover cells underneath
stream segments in the 1 km grid cell reporting unit and dividing
by the stream corridor’s total land area (total number cells
underneath stream segments minus those classified as water). This
metric can be used to identify areas bordering streams which may
be more susceptible to non-point source pollution, pesticides, excess
fertilizer and soil erosion which may result in stream and lake
sedimentation or eutrophication. |