Interim Biogeographic Regionalisation for Australia (IBRA), Version 7 (Regions)

## **Abstract** \n\nThis dataset and its metadata statement were supplied to the Bioregional Assessment Programme by a third party and are presented here as originally supplied. \n\n\n\nInterim Biogeographic Regionalisation for Australia (IBRA) version 7.0 represents a landscape based approach to classifying the land surface of Australia. 89 biogeographic regions and 419 sub regions have been delineated, each reflecting a unifying set of major environmental influences which shape the occurrence of flora and fauna and their interaction with the physical environment across Australia and its external territories (excluding Antarctica). IBRA Version 7.0 data consists of two datasets. IBRA bioregions, which is a larger scale regional classification of homogenous ecosystems, and sub regions, which are more localised. IBRA Version 7.0 is the result of both significant changes to certain IBRA 6.1 boundaries, plus refinement of other boundaries due to better data availability amongst some states and territories, and alterations by the states/territories along state borders. The updated boundaries were jointly defined by the Commonwealth, State and Territory nature and conservation agencies. In this respect refinements were carried out to all mainland jurisdictions with significant changes in Queensland and South Australia. In addition the dataset was also updated to more closely conform to the Geoscience Australia 1:100K State borders, and a standard coding/naming convention introduced (for both regions and sub-regions) resulting in differences to both names and codes used in earlier IBRA Versions.\n\nVarious sources were used to delineate islands - these included the GA100K Admin layer plus the Australian Maritime Boundaries dataset, a Coral Sea dataset (held in ERIN) and the GA Commonwealth Fisheries 2006 dataset.\n\n## **Dataset History** \n\nStates and Territories provided the base data for inclusion in IBRA Version 7 Auricht Projects then undertook spatial refinements of the boundaries to ensure that edgematching of boundaries were to the state borders and coastline. The Geoscience Australia 1:100,000 dataset was used to maintain this standard. Draft outputs were provided to State/Territory Agencies for cross-checking. Final checking of topology was undertaken by the Australian Government Department of Sustainability, Environment, Water, Population and Communities.\n\n## **Dataset Citation** \n\n"Department of Sustainability, Environment, Water, Population and Communities" (2013) Interim Biogeographic Regionalisation for Australia (IBRA), Version 7 (Regions). Bioregional Assessment Source Dataset. Viewed 11 December 2018, http://data.bioregionalassessments.gov.au/dataset/70bb7ab7-e8a9-4be5-aa73-85bb22c2cb88.

## **摘要**

本数据集及其元数据说明由第三方提交至生物区域评估计划（Bioregional Assessment Programme），此处按原始提交格式完整呈现。

澳大利亚临时生物地理分区（Interim Biogeographic Regionalisation for Australia, IBRA）7.0版采用基于景观的分类方法，对澳大利亚陆地表面进行区划。目前已划定89个生物地理区域与419个子区域，每个单元均体现了一组统一的核心环境影响因素，这些因素塑造了澳大利亚及其海外领地（南极洲除外）范围内的动植物分布格局，以及二者与物理环境的相互作用关系。

IBRA 7.0版数据包含两类数据集：其一为IBRA生物地理区域，即针对同质化生态系统的大尺度区域分类；其二为子区域，属于更精细化的局部分类单元。IBRA 7.0版的编制既包含对部分IBRA 6.1版边界的重大调整，也因部分州和领地获取了更高质量的基础数据而对其他边界进行了优化，同时纳入了各州/领地沿州界提出的修改方案。更新后的边界由联邦、州和领地的自然保护机构共同界定，本次优化覆盖所有大陆辖区，其中昆士兰州与南澳大利亚州的调整幅度最为显著。此外，本数据集还进行了适配性更新，以更贴合澳大利亚地球科学局（Geoscience Australia）1:10万比例尺州界标准，并针对区域与子区域引入了统一的编码与命名规范，这使得早期IBRA版本中使用的名称与编码均出现了差异。

本次岛屿区划参考了多类数据源，包括GA100K行政图层、澳大利亚海事边界数据集、存储于ERIN中的珊瑚海数据集，以及澳大利亚地球科学局2006年联邦渔业数据集。

## **数据集历史**

各州与领地提供了IBRA 7.0版编制所需的基础数据。随后Auricht项目组对边界开展了空间优化工作，以确保边界与州界及海岸线实现精准匹配。澳大利亚地球科学局1:10万比例尺数据集被用于维持该制图标准。最终成果草案被提交至各州/领地机构进行交叉核查。拓扑结构的最终核查工作由澳大利亚可持续发展、环境、水、人口与社区部（Department of Sustainability, Environment, Water, Population and Communities）完成。

## **数据集引用**

"可持续发展、环境、水、人口与社区部"（2013）：澳大利亚临时生物地理分区（IBRA）7.0版（区域）。生物区域评估源数据集。2018年12月11日查阅，http://data.bioregionalassessments.gov.au/dataset/70bb7ab7-e8a9-4be5-aa73-85bb22c2cb88。