Modelled pre-1750 Vegetation Map of Gundagai Shire. VIS_ID 3961

Modelled pre-1750 Vegetation of Gundagai Shire.\r\n\r\nPre-European vegetation was modelled to show the distribution of the major vegetation types across Gundagai Shire prior to clearance activities. Estimated current extent of the extant area of each vegetation community based on canopy layer only. The estimate was generated by overlaying the pre-1750 model with a woody/non-woody layer derived from satellite photography. It is important to recognise that the models are based on extrapolations from a few hundred plot locations, at which vegetation present was matched to numerous environmental parameters. The key parameters in determining vegetation within Gundagai Shire are soils, geology, topographic position and rainfall. Thus the model and map is only as good as the soil or geological mapping available for the Shire. The models have most use in providing the extent and context of a vegetation community across the landscape. They provide a strong indication of likely vegetation types present, but should not be regarded as a definitive guide.冈代吉郡（Gundagai Shire）1750年以前植被模拟数据集 本数据集对前欧洲殖民时期冈代吉郡的原生植被进行模拟，以展示该区域主要植被类型的空间分布格局。仅基于冠层图层，估算各植被群落现存区域的当前分布范围；该估算结果通过将1750年前的植被模拟模型与源自卫星遥感影像的木本/非木本图层叠加生成。需注意，本模型基于数百个野外样地的环境参数与现存植被匹配结果进行外推得到。影响冈代吉郡植被分布的核心环境参数包括土壤类型、地质条件、地形位置与降雨量。因此，本模型及配套植被图的精度完全取决于该郡已有的土壤与地质测绘数据质量。本模型的核心应用价值在于呈现区域内各植被群落的分布范围与景观背景，可有效指示区域内潜在的植被类型，但不应作为确定性的参考依据。