Mulligan Flat - Goorooyarroo Woodland Experiment Logo

Back to Projects page

Vegetation Surveys


Plants are critical to the structure and function of the yellow box – Blakely’s red gum grassy woodland ecosystem, and are a major component of the biodiversity.

A key effect of human-disturbance of woodlands has been the simplification of habitat through thinning and removal of woody vegetation, changes in groundlayer composition and prevention of tree and shrub regeneration.

Project Aim

Vegetation assessments are being undertaken for two key purposes:

Method of Survey

Vegetation surveys were split into two categories:

Ground layer and soil measurements
A baseline survey of the ground layer vegetation, was conducted in Spring 2007, and soils in Autumn 2008, with the methods and results presented in detail in McIntyre et al. (2010).  In summary, the survey was conducted across each of the 96 sites, using 30 systematically-located quadrats (0.5 x 0.5m), per site.  The top six plant species (or species groups) were ranked by biomass in each quadrat, and ground cover (litter, litter depth, bare ground, cryptogams, live plant basal area, rock, logs) was measured at four points in each quadrat. 

Soil samples were taken in Autumn 2008 to a depth of 10 cm at each quadrat location and pooled to obtain an average for each site.

The following analyses were performed on the soil:

Tree measurements
All trees over 2cm DBH were measured at each site and a GPS location was recorded for each tree over 10cm DBH. Tree species and health also were recorded. Area coverage of tree regeneration below 2cm DBH was measured. Where amounts of regeneration were relatively small, absolute counts were made. The aim of this approach was to record the tree population structure before treatments were implemented.



Fact Sheet


Back to MFGO Project page

Mulligans Flat Goorooyarroo Woodland Experiment Contact Details