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Published byGodwin Weaver Modified over 8 years ago
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Riparian vegetation includes trees, shrubs and wetlands; not grasses Select one width or two and average for each bank, then average banks together
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Effects increase in importance as they accumulate in a watershed: Death of a Thousand Cuts! Habitat forming functions Bank stabilization Retention/uptake of excess water Groundwater recharge/maintenance of dry weather flows Assimilation/storage of nutrients and sediment Temperature moderation
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In streams with good habitat, good riparian shading and elevated nutrients, effects of these nutrients may be somewhat moderated by limiting light penetration Sunlight is match thrown on nutrient fuel
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Riparian Condition
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Area outside of existing riparian that can strongly affect stream via runoff Screening data, most accurate data from photos or GIS
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Land Use Assessment by GIS
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Scores based on Streambank Soil Alteration Rating of Platts et al. (1983) In many case bank erosion is greatest source of bedload False banks are considered as eroded
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Riparian encroachment ultimately leads to bank destabilization and bank erosion
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False banks are formed when stream banks are trampled by livestock and a steep bank is formed back from the waters edge
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