An area identiﬁed as Slip 6 had been categorised as Red Zone due to the high risk of rockfall; therefore, physical access within that area is prohibited.
Topsoil, nutrients, and biological networks were removed by the slip events and subsequent debris clearance using aerially applied seawater left the substrate barren, dehydrated, and prone to further erosion.
Red Tree Environmental Solutions Ltd was engaged and by harnessing the principles of ecological engineering, recommended the Enviroblanket® technology that has been developed over several years of research.
To eliminate the risk to ground staff, an aerial application methodology was developed and costed, then deployed in three phases.
Phase 1: Herbicide application via aerial broadcast and wand spraying techniques to perform site preparation.
Phase 2: Aerial application of a site-speciﬁc Enviroblanket® formulae incorporating a tailored mix of locally harvested native seed species to 1 Ha of disturbed slope face.
Phase 3: Aerial application of Vital Bon-Matt HR to secure the Enviroblanket® to the slope.
In any restoration process, pioneer species establish more quickly than other species as their physiological adaptations and rate of metabolism are best suited to the environment. The Enviroblanket® uses media and ingredients that facilitate erosion and sediment control while providing the ideal growing conditions for pioneering New Zealand native species.
The use of Vital Bon-Matt HR greatly increased the stabilisation factor on the exposed coastal slope and, during drier periods, will also support increased moisture retention complimenting and enhancing the overall beneﬁts of the site-speciﬁc Enviroblanket® application.
As site conditions can vary greatly, each use of this methodology requires a prescriptive approach utilising appropriate species selection, mix proportions, and selective additives along with timings and operational strategies.
Get in touch with us for a copy of the Case Study.
Vital Chemical is committed to the continuous improvement of our business functions to ensure the delivery of best value products and services, whilst contributing toward objectives and outcomes aligning with The United Nations Social Development Goals (UNSDGs). Our Australian made products listed on the Infrastructure Sustainability Council (IS Council) ISupply Directory can support your project’s IS Council accreditation submission across a range of qualifying categories.