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growth

The increasing density of shrubs and trees across a landscape

Woody thickening is a global phenomenon whereby the density of trees and woody shrubs is increasing in the landscape. Although most commonly seen in arid and semi-arid landscapes, it also occurs in other environments. This process has a number of impacts on landscape function. Woody thickening can be a naturally occurring phenomenon but is being enhanced by climate change, changes in fire regimes and other human land use activity. Woody thickening influences carbon storage and (more)...

Powerful Choices: transition to a biofuel economy in Australia

The Powerful Choices study uses a biophysical-economics model of the Australian economy to explore the capability of discrete low-carbon technologies to maintain economic growth, ensure energy security and reduce CO2 emissions out to 2051. The approach applies physical laws of thermodynamics and mass balance to established economic structures to ensure that financial dynamics are constrained by physical reality. Renewable electricity (bio-electricity, wind, solar thermal and (more)...

Documenting the concepts of the

The report considers the biophysical landscape condition of the West Australian property, Payneham Vale, owned by Ron and Suzanne Watkins. It reflects on the success of substantial renovations to improve its resource conservation, covering dryland sali

Subsurface Irrigation

National Program for Sustainable Irrigation Fact sheet 2005/1

Australian studies show an average of 30% of applied irrigation water passes through the root zone without being used by the crops it is intended to sustain. This water either becomes groundwater recharge or is intercepted by drainage networks and contributes to waterway pollution. Subsurface drip irrigation has shown great potential for increasing crop yield and uniformity, while decreasing water use and environmental impact. Importantly, subsurface irrigation applies water directly to the (more)...