ALLOWAH RESERVE PARTNERSHIP PROJECT
Tuesday, 15 April 2014
The TFI is a partner in the redevelopment of a number of areas within the Boatman's Creek catchment under a Commonwealth Caring for Our Country grant. A healthy landscape hydrology on the Callaghan Campus and other areas in this catchment is important to the wellbeing of the Hunter Wetlands system. Work is to be undertaken on the Newcastle Council managed Allowah reserve in North Lambton as part of this multi agency project to stem soil erosion and pollution in the catchment.
An exemplary approach has been outlined for the purpose. Whilst the details are aspirational the basic approach is not new. It was developed in 1992 and used to arrest the sediment and regular flooding of University Drive.
Extracts from project workshop notes are provided here
ALLOWAH RESERVE PARTNERSHIP PROJECT SCOPING STUDY MARCH 2014
A brief description of bioscales (or micro-topographic vegetation arcs) is provided here. These are designed to stem soil and moisture loss from Australian landscapes, and to foster soil building and soil moisture retention in biologically active soils as part of the developing human environment.
Individual bioscales are asymmetrical curvilinear bunds created by deep restructuring of the landscape according to soil character, topography, existing infrastructure, vegetation cover and peak storm rainfall availability. They are designed to ensure no run-off occurs during even the most torrential downpours, and to redirect excess surface flows into deep infiltration zones for increased biomass production.
Patterns of bioscales are created to retain storm flows in situ, and to control the movement of all resources and activities through a degraded landscape - whilst fostering biodiversity, ecosystem complexity, resilience and habitat. The patterns can be designed to accommodate sustainable infrastructure and to dictate future landuse within the limitations of biocapacity, ecosystem functions, landscape hydrology and natural capital.