High Ecological Value Waterways and Water Dependent Ecosystems - WAVERLEY LGA

A map of the high ecological value waterways and water dependent ecosystems for the Waverley LGA was prepared by the Science Division of the Department of Planning, Industry and Environment, with input layers and support for the map provided by the former NSW Department of Primary Industries-Fisheries and Department of Industry-Crown Lands and Water. The basis for the map arises from Science Division inputs to strategic planning processes. For example, the map has been included in the Land Use and Infrastructure Implementation Plans for the Wilton (Wilton2040, page 22) and Greater Macarthur (interim plan, page 36) Priority Growth Areas. This map was specifically developed for input to Local Government Local Strategic Planning Statements to support Council’s delivery of Strategy 25.1 of the Greater Sydney Region Plan.\r\n\r\nThe map shows areas where waterways and water dependent ecosystems are defined as high ecological value, based on definitions, guidelines and policies under the Environment Protection and Biodiversity Conservation Act 1999, Biodiversity Conservation Act 2016, Fisheries Management Act 1994 and Water Management Act 2000. Water dependent ecosystems are defined as wetlands, and flora and fauna that rely on water sources (including groundwater). The map represents an overlay of 39 indicators being used by the State Government to define high value, however, not all 39 indicators will be present in any one LGA (see Attachment 1 below). For example, there are 3 indicators making up the map for the Waverley LGA. It should also be noted that the individual indicators have not been ground-truthed and it is recommended that field assessments and/or a comparison to local mapping be undertaken prior to any decisions being made.\r\nThe map was created by initially placing a 1 ha (to correspond with a lot size) hexagon grid over the LGA, and attributing the grid with the area, length and/or frequency of occurrence of high value water dependent ecosystems. The purpose of the map is to identify strategic planning priorities for protecting and improving the health of high value waterways and water dependent ecosystems in the LGA. Once identified, the priorities can be used as a basis for identifying aquatic biodiversity refugia, stream rehabilitation efforts and setting management targets and/or land use planning controls that would protect or improve the health of waterways and water dependent ecosystems so they provide the essential services and functions expected of a cool blue-green corridor.

本数据集为韦弗利地方政府区域（Waverley Local Government Area，LGA）内高生态价值水道与水依赖生态系统（water dependent ecosystems）的分布图，由规划、产业与环境部科学司编制，原新南威尔士州初级产业部-渔业局与产业部-公有土地与水务局提供了数据图层与技术支持。本分布图的编制依据源自科学司为战略规划流程提供的支撑材料。例如，该图已纳入威尔顿（Wilton2040，第22页）与大麦克阿瑟（Greater Macarthur，临时规划方案，第36页）优先增长区的土地利用与基础设施实施方案。本分布图专为地方政府地方战略规划声明编制，以协助地方议会落实《大悉尼区域规划》第25.1号战略。

本分布图依据《1999年环境保护与生物多样性保护法》《2016年生物多样性保护法》《1994年渔业管理法》与《2000年水资源管理法》中的定义、指南与政策，标注了被认定为高生态价值的水道与水依赖生态系统分布区域。其中，水依赖生态系统指依赖水源（包括地下水）生存的湿地、动植物群落。本分布图叠加了州政府用于界定高价值生态区域的39项指标，但并非所有39项指标都会在单个地方政府区域内出现（详见下文附件1）。例如，韦弗利地方政府区域的分布图仅基于3项指标编制。需特别说明的是，各项指标均未经过实地验证，建议在作出相关决策前开展实地评估或与本地现有地图进行比对。

本分布图的编制流程为：首先在地方政府区域内叠加1公顷（与地块尺寸匹配）的六边形网格，随后为网格赋予高价值水依赖生态系统的面积、长度及/或出现频率属性。本分布图的编制目的是识别战略规划优先级，以保护并改善该区域内高价值水道与水依赖生态系统的健康状态。确定优先级后，可将其作为识别水生生物避难所、开展溪流修复工作，以及制定管理目标或土地利用规划管控措施的依据，以保护或改善水道与水依赖生态系统的健康状况，使其能够发挥清凉蓝绿廊道应有的核心服务与功能。