Western Sydney Hydrogeological Landscapes: May 2011 (First Edition)

The Hydrogeological Landscape (HGL) concept provides a structure for the understanding of how salinity manifests itself in the landscape and how differences in salinity are expressed across the landscape. A HGL spatially defines areas of similar salt stores and pathways for salt mobilisation. The process of HGL determination relies on the integration of a number of factors: geology, soils, slope, regolith depth, and climate; an understanding of the differences in salinity development; and the impacts (land salinity/salt load/water electrical conductivity) in landscapes. Information sources such as soils maps, site characterisation, salinity site mapping, hydrogeological conditions and surface and groundwater data are combined to develop standard templates for each HGL. The focus of this package is the Western Sydney Study Area. It comprises four volumes - Volume 1: project background, regional setting, methodologies, interpretations, conclusions, glossary and references; Volume 2: HGL templates, and information associated with the use of the HGL templates; Volume 3: maps and digital spatial data developed for the project, including derivative maps to assist in land management decision making; and Volume 4: background information relevant to land management for rural and urban salinity in the Western Sydney Study Area. This includes information on salinity management from the perspectives of land use design, scales and types of management, landscape function, management strategies, actions and outcomes, as well as land use to be avoided.\r\n\r\nSpatial resolution for this product is 1:100 000.

水文地质景观（Hydrogeological Landscape，简称HGL）概念为解析盐分在景观中的赋存机制，以及区域盐分差异的空间表达规律提供了系统性分析框架。HGL可在空间上界定具有相似盐存储量与盐活化迁移路径的区域。HGL的划定需综合多类核心要素：地质条件、土壤类型、坡度、风化壳厚度与气候；同时需明确盐分发育的差异特征，及其对景观产生的影响（包括土地盐渍化、盐负荷、水体电导率）。研究人员整合土壤图、场地特征调查数据、盐渍化场地测绘成果、水文地质条件资料以及地表水与地下水监测数据等多源信息，为每一类HGL制定标准化应用模板。
本数据集的研究聚焦于西悉尼研究区，其内容分为四卷：第一卷涵盖项目背景、区域概况、研究方法、解读结果、结论、术语表与参考文献；第二卷包含HGL模板及HGL模板使用相关的配套资料；第三卷收录为本项目编制的地图与数字空间数据，包括辅助土地管理决策的衍生制图成果；第四卷包含西悉尼研究区农村与城市盐渍化土地管理相关的背景资料，具体涉及土地利用规划、管理尺度与类型、景观功能、管理策略、实施举措与实施成效，以及需规避的土地利用类型。
本产品的空间分辨率为1:100 000。