Is the BEHI Index (Part of the BANCS Model) Good for Prediction of Streambank Erosion?

Abstract

Sedimentation of waterways and reservoirs, decreasing quality of drinking water and costs necessary for maintenance of these objects directly related to streambank erosion. This study provides a tool for water management that can help with estimation parts of a streambank which are prone to erosion. The Bank erosion hazard index (

Influence of Catchment and Stream Characteristics on Suspended Solids and Phosphorus Concentrations Across an agriculturally Intensive Watershed in Southern Ontario

“…Bank erosion is often cited as a major source of sediments and nutrients in lotic systems (Allmanová and Jakubis, 2016;Kronvang et al, 1997;Lammers et al, 2017;McMillan et al, 2018). Stream bank erosion can be caused by two major factors: hydraulic/gravitation forces and bank erodibility potential (Janes et al, 2018;Prosdocimi et al, 2015;Rosgen, 2001).…”

“…BEHI is effective at predicting the extent of stream bank erosion, and at identifying stream banks vulnerable to erosion (Allmanová and Jakubis, 2016;Kwan and Swanson, 2014).…”

“…The sub-catchment for each synoptic water survey point was characterized using 30 predictor variables, and each of these variables can be further grouped into land cover / land use, topography, soil, stream characteristics, and anthropogenic modifications for descriptive purposes (Table 1). Land cover variables were generated from the 2017 Rosgen's bank erosion hazard index (BEHI) is an effective predictor of streambank erosion risk (Allmanová and Jakubis, 2016;Rosgen, 2001) that uses key streambank characteristics. BEHI can also be used to identify stream banks that are vulnerable to erosion (Allmanová and Jakubis, 2016;Kwan and Swanson, 2014).…”

“…Land cover variables were generated from the 2017 Rosgen's bank erosion hazard index (BEHI) is an effective predictor of streambank erosion risk (Allmanová and Jakubis, 2016;Rosgen, 2001) that uses key streambank characteristics. BEHI can also be used to identify stream banks that are vulnerable to erosion (Allmanová and Jakubis, 2016;Kwan and Swanson, 2014). In August 2018, we conducted field surveys to measure BEHI (350 m upstream of each sample site).…”

“…Streambank erosion is often cited as a major source of sediments and nutrients in lotic systems (Allmanová and Jakubis, 2016;Kronvang et al, 1997;Lammers et al, 2017;McMillan et al, 2018).…”