Vegetation of Lachlan Valley NP & SCA (Kalyarr) - Norwood, Darcoola and Thelangerin precincts.
The native vegetation of Lachlan Valley NP & SCA (Kalyarr) - Norwood, Darcoola and Thelangerin precincts (Porteners, 2013) was commissioned by National Parks and Wildlife Service, South West Area, to provide a map and report describing the native vegetation interpreted for conservation reserve management.
The existing 'Native Vegetation (Multi Attribute) - Hay 7828'dataset (Horner et al. 2002) was used as the basis for mapping. The native vegetation for the Hay 7828 1:100,000 scale map sheetwascaptured as part of the Native Vegetation Mapping Program (NVMP)(ANZLIC unique identifier: ANZNS0359100124; VIS_ID 899). In that projec, native vegetation was delineated and each polygon described by ten attributes, based on the interpretation of 1:50 000 scale colour aerial photography and supplemented by geo-rectified Landsat TM false colour satellite imagery. A complementary botanical survey was undertaken in order to improve the accuracy of the dataset, determine if any corrections were necessary and assist in defining a final native vegetation community for each polygon.
The Hay NVMP map was ground-truthed and reattributed by Marianne Porteners. To assist with reattribution and provide a local-scale stratification, twenty-four quadrat-based sites were sampled for full floristics, supplementing existing data from 76 sites inthe VIS Flora Survey module (11 sites sampledwithin the study area and 65 regional sites relevant to the study area).Analysis was undertaken to determine if vegetation in the study area fitted within the existing NSW Master Plant Community Type (PCT) Classification, or if new vegetation types needed to be created. Fourteen communitiesare described that align directly to the PCT classification.
More recent high-resolution aerial photography (ADS40 One Tree 1:100,000 mapsheet captured January 2012) was used to identify possible discrepancies in the draft map prior to field survey. The remainder of the study area is covered by 1:50,000 scale stereo aerial photography captured in 2003, which was also used to check vegetation boundaries. VIS_ID 4208
