Potential Groundwater Dependent Ecosystem (GDE) - Species Tolerance Grid

Potential Groundwater Dependent Ecosystems (GDE) are ecosystems identified within the landscape as likely to be at least partly dependent on groundwater. \n\nIn 2011-2012 a species tolerance model was developed by Arthur Rylah Institute, collaborating with DPI, to provide a relative measure of sensitivity of those ecosystems to changes in groundwater availability and quality. The output was a species tolerance grid for Victoria.\n\nEach GDE map unit has been assigned a species tolerance value based on the median of it's contributing grid cells.\n\nRefer to the Potential Terrestrial Groundwater Dependent Ecosystems metadata record for each CMA for a full acount of the data product.

潜在地下水依赖型生态系统（Potential Groundwater Dependent Ecosystems，GDE）是在地表景观中被识别出的、大概率至少部分依赖地下水的生态系统。

2011至2012年间，亚瑟·赖尔研究所与初级产业部（Department of Primary Industries，DPI）合作开发了物种耐受模型，用于量化评估此类生态系统对地下水水量与水质变化的相对敏感程度，其输出成果为维多利亚州的物种耐受栅格数据集。

所有GDE地图单元均根据其关联栅格单元格的中位数，分配得到对应的物种耐受值。

如需完整了解该数据产品的详细说明，请查阅各流域管理局（Catchment Management Authority，CMA）对应的潜在陆地地下水依赖型生态系统元数据记录。