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Vegetation

Development of a Riparian Condition Assessment Protocol for Northern Gulf Rivers using Remote Sensing and Ground Survey

The primary focus of this study was to establish the riparian condition baseline against which future condition trends could be measured; and the development of a robust, repeatable method of analysis.
However, during the course of the study, researchers found that the dramatic changes in woody vegetation in both the channel zone and across floodplains warranted much more detailed investigation to establish:

Molecular ecological analysis of vegetation function in fragmented Australian biomes

The aims of this project were to quantify the strength and scale of reproductive interactions among native plant populations occupying remnant vegetation patches in fragmented cropping landscapes in NSW and WA, assess their demographic significance in terms of progeny fitness and population viability and from this develop models of inter-patch interactions in relation to landscape configuration.

Biodiversity values and functional ecology of regrowth vegetation in modified landscapes

“At a continental scale, remnant vegetation in the Australian rangelands can be described as intact, except towards the east where intensive land clearing has occurred prior to cessation of broadscale land clearing at the end of 2006. However, ongoing clearing of native vegetation for the purposes of harvesting fodder is a legitimate management approach for large areas of south-west Queensland, and is regulated under the Vegetation Management Act 1999. This is (more)...

How much water does a woodland or plantation use: a review of some measurement methods

Determining the water balance of a landscape is important to sustainable management of water, vegetation and land resources. Water flow through vegetation is the principle pathway for the discharge of water from Australian landscapes. The rate of this discharge is determined by solar radiation, leaf area index, vapour pressure deficit and soil moisture content. Tree transpiration from plantations and native woodlands and forests is an important determinant of the water balance of much of the (more)...

Carbon Uptake and Water Use of Vegetation Under Climate Change

Accumulation and storage of carbon in trees is one method of sequestration which may help offset increasing atmospheric CO2 concentrations. However, for every molecule of CO2 absorbed by a leaf, up to a thousand molecules of water are released as transpiration, water that has moved out of the soil into the atmosphere. Therefore, simply planting more trees to absorb more CO2 is not as risk-free as may originally be thought, (more)...

Advanced airborne technologies for mapping and monitoring native Australian vegetation

Airborne sensors can be used by natural resource managers and researchers to collect data about things which can be seen, such as vegetation cover, as well as characteristics like canopy condition and water use, which are not visible. Importantly, faster and more accurate data collection over large areas can be achieved by combining light detection and ranging (lidar) with other airborne technologies which include multi and hyper spectral scanners, digital video and still photography. Lidar can be (more)...

Understanding and determining mechanisms to prevent invasion in coastal vegetation

We investigated the effect of richness of different growth forms (functional richness), the arrival order (priority effects) and competitive interactions in mediating plant community resilience to invasion events. We constructed mesocosms composed of dune…

EWeedMAT:Environmental Weed Management Action Tool

The Yorke Peninsula Case Study

The Environmental Weed Management Action Tool (EWeedMAT) was initially developed in the South East Natural Resources Management (SENRM) region of South Australia.1 Native vegetation in the South East has been reduced to 11% of its original area and is now…

Detection of Pinus radiata wildlings in remnant vegetation in the lower SE of South Australia, and far SW of Victoria

a Pilot Study

This investigation attempted to use fine spatial scale Quickbird imagery and digitised aerial photography to indicate the location of pine wildlings within a selection of vegetation communities.

Control of Pine wildlings in remnant vegetation: Aspects of management in the Green Triangle Region

Radiata pines (Pinus radiata) were introduced into South Australia and Victorian in latter part of the 1800s. The second half of the 1900s saw large-scale plantation development. Breeding for faster growth and greater volume also occurred in this period.