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Australia’s Tropical Rivers Data Collation Project

In response to the need to better understand Australia’s tropical river systems, this project aimed collating available datasets relating to Australia’s Tropical Rivers; and to then produce a set of relevant information suitable for upload to the Australian Natural Resources Atlas.

Tropical Rivers Inventory and Assessment Project

The Tropical Rivers Inventory and Assessment Project was a multiple-stakeholder and multiple-disciplinary initiative in northern Australia that sought to treat the wetlands and waterways within Australia’s two northern drainage divisions as one region with common issues surrounding the biota, hydro-geomorphology and management.

This project aimed to:

Investigating lake/groundwater interactions at Lake Tutchewop

Salinity is an on-going environmental concern that causes damage to agricultural land, downstream water users, aquatic ecosystems and biodiversity, as well as to regional and urban infrastructure. One strategy to manage increasing salinity in the Murray Darling Basin is the construction of 13 major salt interception schemes that divert 550,000 tonnes of salt away from the Murray River each year (Figure 1). The Barr Creek Drainage Disposal Scheme is one of these schemes diverting saline water into (more)...

Irrigation Update Volume 9

Irrigation and the Rootzone

In this issue:

  • Investigating the Salt of the Earth
  • Digging deep and the quest for super soils
  • Linking irrigator experience with measured data
  • NPSI News

Coordinating Deep Drainage Research in the Northern Darling Basin - Final Report

A key issue identified by the research community working with the cotton industry was the lack of understanding and acceptance of the concept of deep drainage. Deep drainage is defined as the part of the water (applied to the surface and as rainfall or irrigation) that moves past the rootzone. In general the existing paradigm was “cotton soils don’t leak”. However, the research community related to the Australian Cotton CRC (ACCRC) (more)...

Farm Dam Management

This proposal will develop and deliver integrated farm dam management information to allow irrigation businesses to optimise the use and returns from farm dams.

LongStop: A more Sensitive Wetting Front Detector

This pilot study evaluates the performance of the LongStop under a furrow irrigated cotton crop on a cracking grey clay soil.

Irrigation Insights 2 - Subsurface Drainage Design and Management Practices in Irrigated Areas of Australia

It is widely understood that irrigation development results in deep percolation past the rootzone, which recharges the groundwater. With flood irrigation, watertables often rise at around 0.5 m a year until a new equilibrium is established where the watertable fluctuates from the soil surface to around 3 m deep. A significant part of all irrigation areas in Australia are currently in this condition or approaching such equilibrium. Irrigation areas in southeastern Australia, particularly in the Murray (more)...