Challenges faced by water resource systems are multi-faceted. The problem can be even more pronounced in a dry continent like Australia where the water resources can often be afflicted by high salinity and turbidity. Therefore, modern water resource systems require to appropriately manage both water quality and quantity. This study aims to illustrate the trade-offs between water quantity and quality in a reservoir, based on decisions to harvest different inflow sources. Taylors Lake of the Grampians reservoir system in Western Victoria, Australia was chosen as the case study for this research as it is sufficiently complex and includes many of the contemporary water resources challenges seen around the world. Different operational scenarios were analysed which included increasingly stringent water quality criteria before the water was harvested or otherwise allowed to by-pass the storage. The study suggests that selective harvesting of water can be an option to improve the overall and long-term water quality within a reservoir, but stringent water quality measures can lead to an associated loss of overall water quantity. This research study provides useful insight to water planners and stakeholders in similar catchment settings around the world, to identify water harvesting regimes with competing water quality constraints.

水资源系统面临的挑战是多方面的。在像澳大利亚这样的干旱大陆，这个问题可能更加明显，那里的水资源经常受到高盐度和浊度的影响。因此，现代水资源系统需要对水质和水量进行适当管理。本研究旨在说明水库中水量和水质之间的权衡，基于收集不同流入源的决定。澳大利亚维多利亚州西部格兰屏水库系统的泰勒斯湖被选为本研究的案例研究，因为它非常复杂，包括世界各地的许多当代水资源挑战。分析了不同的操作场景，其中包括在收集水或以其他方式允许绕过存储之前越来越严格的水质标准。该研究表明，选择性收集水可以成为改善水库内整体和长期水质的一种选择，但严格的水质措施可能会导致整体水量的相关损失。这项研究为世界各地类似集水区的水资源规划者和利益相关者提供了有用的见解，以确定具有竞争性水质限制的集水制度。但严格的水质措施可能导致整体水量的相关损失。这项研究为世界各地类似集水区的水资源规划者和利益相关者提供了有用的见解，以确定具有竞争性水质限制的集水制度。但严格的水质措施可能导致整体水量的相关损失。这项研究为世界各地类似集水区的水资源规划者和利益相关者提供了有用的见解，以确定具有竞争性水质限制的集水制度。