Identification of corridors of river recovery for NSW Hawkesbury Nepean catchments

By connecting corridors of river recovery, resilience can be built into river systems to mitigate against future floods and droughts driven by anthropogenic disturbance or climate extremes. This database can be used to systematically analyse where corridors of geomorphic river recovery could be created via conservation or rehabilitation. Analysis is undertaken in ArcGIS using the recovery potential layer of the Open Access NSW River Styles database that is available from DPIE (www.dpie.nsw.gov.au). The River Styles database was accessed in January 2021. The database and associated workflow identifies reach and loci connections based on different combinations of recovery potential classes. Reach connections are defined as an upstream to downstream section of river that is connected end-to-end, and loci connections are defined as isolated sections of river from which recovery can be seeded and extended into adjacent reaches. This map for all freshwater stream length of the NSW Hawkesbury Nepean catchments, shows the spatial distribution of thirteen connections based on combinations and sequences of conservation, strategic and high recovery potential targets. Other connections of interest to river practitioners can be identified and >80 different user-defined scenarios run using a workflow available at protocols.io.\r\n\r\nAttribution to: Macquarie University, D Agnew and K Fryirs (2022) Corridors of river recovery database and workflow. Data accessed from The Sharing and Enabling Environmental Data Portal.\r\n\r\nThis work is funded by an Australian Research Council Linkage project based at Macquarie University with industry partners Landcare Australia and Hunter-Central Rivers Local Land Services. \r\n\r\nThis work is published in two Open Access papers:\r\n\r\n* Agnew D, Fryirs K (2022) Identifying corridors of river recovery in coastal NSW Australia, for use in river management decision support and prioritisation systems. PLoS ONE 17(6): e0270285. https://doi.org/10.1371/journal.pone.0270285\r\n* Agnew D, Graves BP, Fryirs K (2022) A GIS workflow for the identification of corridors of geomorphic river recovery across landscapes. PLoS ONE 17(12): e0278831. https://doi.org/10.1371/journal.pone.0278831 \r\n\r\nThe workflow is available at: https://www.protocols.io/view/a-gis-workflow-for-the-identification-of-corridors-n2bvj8625gk5/v1\r\n\r\n

通过连通河流恢复廊道，可在河流系统中构建韧性，以缓解由人为扰动或极端气候引发的未来洪涝与干旱灾害。本数据集可用于系统性分析可通过保护或修复手段构建地貌型河流恢复廊道的区域。本分析依托ArcGIS平台开展，所用数据为开放获取的新南威尔士州（New South Wales, NSW）河流样式数据库（River Styles database）的恢复潜力图层，该数据可从新南威尔士州规划与产业部（Department of Planning and Industry, DPIE）官网（www.dpie.nsw.gov.au）获取。本数据集于2021年1月完成数据获取。本数据集及配套工作流基于不同恢复潜力等级的组合，识别河流段（reach）与源点（loci）的连通关系：河流段连通指首尾相接的上下游河流区段，而源点连通指可作为恢复起始点并延伸至相邻河流段的孤立河流片段。针对新南威尔士州霍克斯伯里-内皮恩（Hawkesbury Nepean）集水区的全部淡水溪流河段，本地图展示了基于保护、战略级与高恢复潜力目标的组合与序列所形成的13处连通廊道的空间分布。河流管护从业者可识别其他具有研究价值的连通廊道，并可通过protocols.io平台提供的工作流运行超过80种用户自定义场景。

数据集及工作流归属：麦考瑞大学（Macquarie University）、D·阿格纽（D Agnew）与K·弗赖尔斯（K Fryirs）（2022）：《河流恢复廊道数据集与工作流》，数据获取自共享与赋能环境数据门户（The Sharing and Enabling Environmental Data Portal）。

本研究由澳大利亚研究委员会（Australian Research Council）联合资助项目支持，依托麦考瑞大学开展，产业合作伙伴为澳大利亚土地保护组织（Landcare Australia）与亨特-中央河流地方土地服务局（Hunter-Central Rivers Local Land Services）。

本研究成果已发表于两篇开放获取期刊论文：
1. Agnew D, Fryirs K (2022) 澳大利亚沿海新南威尔士州河流恢复廊道的识别：用于河流管理决策支持与优先级排序系统. 《公共科学图书馆·综合》（PLoS ONE）17(6): e0270285. https://doi.org/10.1371/journal.pone.0270285
2. Agnew D, Graves BP, Fryirs K (2022) 跨景观地貌型河流恢复廊道识别的GIS工作流. 《公共科学图书馆·综合》（PLoS ONE）17(12): e0278831. https://doi.org/10.1371/journal.pone.0278831

本工作流可于以下网址获取：https://www.protocols.io/view/a-gis-workflow-for-the-identification-of-corridors-n2bvj8625gk5/v1