Glen Bowen monitoring demonstrates sediment loss reduction
Monitoring large-scale gully remediation sites helps protect the reef by increasing knowledge of sediment movement . It also improves understanding of the most cost-effective ways to bring eroded land back into production .
In partnership with environmental engineers Neilly Group , NQ Dry Tropics remediated three major gully sites covering an area of 10.2 hectares adjacent to the Bowen River on Glen Bowen Station , near Collinsville .
Treatment to slow water flow and hydrate the landscape included reshaping and battering the sides of active gullies , installing rock chutes and bunds , and establishing vegetation .
The first automatic monitoring triggered by a rain event early in 2022 showed a 98.5 % reduction in fine sediment leaving the landscape .
Before and after : The first of two large-scale gully remediation projects at Glen Bowen Station .
Flow event samples from the treated site at Glen Bowen ( left ) and the control site .
2021-2022 – NQ DRY TROPICS YEAR IN REVIEW PAGE 11