High-resolution assessment of riverbank erosion and stabilization techniques with associated water quality implications

Agriculture is a key contributor to poor water quality, but the sources of sediment and nutrient losses from agricultural catchments – including riverbank erosion are highly variable. Riverbank particularly difficult quantify control. Here, we developed quick assessment approach rates associated loading into waterways using airborne LiDAR combined with field-collected data. We applied this explored its relationships quality at four sites within Blackwater catchment in Northern Ireland for two analysis periods. GIS image differencing revealed that volume changes elevation equated average which indicated spatial temporal variability rates. Combining in-situ bulk density total extractable phosphorus content provided The relative differences between estimated different corresponded well in-stream suspended variations, patterns concentrations were more complex. conclude use field data an innovative means quantification. Furthermore, by LiDAR-to-LiDAR analyses, reductions erosion, sediment, following stabilization techniques can be determined.