Australian Dryland Salinity Assessment Spatial Data (1:2,500,000) – NLWRA 2001

\r\n\r\nThe maps represent a compilation of dryland salinity risk and hazard mapping\r\nfor 2000, 2020 and 2050. The map shows the broad distribution of areas\r\nconsidered as having either a high salinity risk or a high salinity hazard. In\r\nsouthern Australia where groundwater level and trend data are available,\r\nassessments that are more confident have been possible. However, in northern\r\nAustralia groundwater data for trend analysis are very sparse or non-existent.\r\nIn these regions, salinity assessments have been based on the presence of\r\ngeological, landscape, regolith, land use and climate attributes which are the\r\nprime drivers of salinity. This national map provides a basis for identifying\r\nthose regions where more detailed assessments are warranted, and where land\r\nuse changes should be targeted if the risks are to be managed.The bulk of non-\r\nagricultural areas in Western Australia, South Australia and western New South\r\nWales were considered to have a very low salinity risk and were not\r\nassessed.Please note that the Commonwealth and all suppliers of source data\r\nused to derive the maps of aAustralia, Forecast Areas Containing Land of High\r\nHazard or Risk of Dryland Salinity from 2000 to 2050a3 do not warrant the\r\naccuracy or completedness of information in this product. Any person using or\r\nrelying upon such information does so on the basis that the Commonwealth and\r\ndata suppliers shall bear no responsibility or liability whatsoever for any\r\nerrors, faults, defects or omissions in the information.\r\n\r\nSee [further metadata](http://data.daff.gov.au/anrdl/metadata_files/pa_dsa__r9nn\r\nd_00211a00.xml) for more detail.\r\n\r\n

本数据集包含2000年、2020年及2050年的旱地盐渍化（dryland salinity）风险与危害制图汇编成果。该系列制图展示了被判定为高盐渍化风险或高盐渍化危害区域的大致分布范围。
在澳大利亚南部，由于可获取地下水位及变化趋势数据，因此可开展可信度更高的盐渍化评估。但澳大利亚北部用于趋势分析的地下水位数据极为匮乏，甚至完全缺失。在此类区域，盐渍化评估依托于地质、地貌、风化层（regolith）、土地利用及气候等盐渍化核心驱动因子的分布特征。
这套国家级制图可为需要开展更详细评估的区域提供识别依据，同时也能为若需管控盐渍化风险时应针对性调整土地利用的区域提供参考。西澳大利亚州、南澳大利亚州及新南威尔士州西部的绝大多数非农业区域被判定为盐渍化风险极低，因此未纳入评估范围。
请注意：澳大利亚联邦及用于编制《2000年至2050年澳大利亚旱地盐渍化高危害/高风险区域预测图集》的所有源数据提供者，均不对本产品中信息的准确性与完整性作出任何保证。任何使用或依赖此类信息的主体，均需自行承担风险，澳大利亚联邦及数据提供者对本信息中出现的任何错误、瑕疵、缺陷或遗漏均不承担任何责任。
如需了解更多细节，请查阅[补充元数据](http://data.daff.gov.au/anrdl/metadata_files/pa_dsa__r9nnd_00211a00.xml)