Vegetation Communities - PED

## **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\nA depiction of major vegetation communities.\n\n## **Purpose** \n\nTo depict major vegetation communities.\n\n## **Dataset History** \n\nDataset developed for the Lake Eyre Basin Bioregional Assessment: Context statement for the Arckaringa subregion. \n\nThe following information has been taken from this website.\n\nhttp://www.environment.gov.au/fed/catalog/search/resource/details.page?uuid=%7Beade4b5f-6a30-46ae-86d8-58ed374ddc72%7D\n\nThe initial vegetation data was provided by over 100 individual projects representing the majority of Australia's regional vegetation mapping. State and Territory custodians translated the vegetation descriptions from these datasets into a common attribute framework, the National Vegetation Information System (ESCAVI, 2003). Scales of input mapping ranged from 1:25,000 to 1:5,000,000. These were combined into an Australia-wide set of vector data. Non-terrestrial areas were mostly removed by the State and Territory custodians before supplying the data to the Environmental Resources Information Network (ERIN), Department of Sustainability Environment Water Population and Communities (DSEWPaC).\n\nEach NVIS vegetation description was written to the NVIS XML format file by the custodian, transferred to ERIN and loaded into the NVIS database at ERIN. A considerable number of quality checks were performed automatically by this system to ensure conformity to the NVIS attribute standards (ESCAVI, 2003) and consistency between levels of the NVIS Information Hierarchy within each description. Descriptions for non-vegetation and non-native vegetation mapping codes were transferred via CSV files.\n\nThe following website provides a detailed description of the Major Vegetation Groups.\n\nhttp://www.anra.gov.au/topics/vegetation/pubs/native_vegetation/vegfsheet.html\n\nParts of New South Wales, South Australia, QLD and the ACT have extensive areas of vector "NoData", thus appearing as an inland sea. In the ACT and SA, the vector data was 'gap-filled' and attributed using satellite imagery as a guide prior to rasterising. Most of these areas comprised a mixture of MVG 24 (inland water) and 25 (cleared), and in some case 99 (Unknown). \n\nEach feature class was then rasterised to a 100m raster with extents to a multiple of 1000 m, to ensure alignment. State rasters were then merged into this 'Australia wide' raster dataset.\n\n## **Dataset Citation** \n\nSA Department of Environment, Water and Natural Resources (2015) Vegetation Communities - PED. Bioregional Assessment Source Dataset. Viewed 12 October 2016, http://data.bioregionalassessments.gov.au/dataset/4bcddf98-4775-4d1b-8b8d-956476ba35c1.## 摘要 本数据集及其元数据声明由第三方提交至生物区域评估计划（Bioregional Assessment Programme），本文档将按原始提交内容呈现。 本数据集用于呈现主要植被群落。 ## 数据集目的 本数据集的编制目的为呈现主要植被群落。 ## 数据集编制历史 本数据集为艾尔湖盆地生物区域评估计划：阿卡林加亚次区域背景声明而开发。 以下信息取自该网站： http://www.environment.gov.au/fed/catalog/search/resource/details.page?uuid=%7Beade4b5f-6a30-46ae-86d8-58ed374ddc72%7D 初始植被数据源自100余个独立项目，涵盖了澳大利亚大部分区域的植被制图成果。各州与领地的数据托管方将这些数据集的植被描述转换至统一的属性框架——国家植被信息系统（National Vegetation Information System, NVIS，ESCAVI, 2003）。输入制图的比例尺范围为1:25000至1:5000000。这些数据被整合为全澳范围的矢量数据集。在将数据提交至环境资源信息网（Environmental Resources Information Network, ERIN）与可持续发展、环境、水资源、人口与社区部（Department of Sustainability Environment Water Population and Communities, DSEWPaC）前，各州与领地的数据托管方已移除了大部分非陆地区域。 各NVIS植被描述由数据托管方按照NVIS XML格式编写，随后上传至ERIN并加载至ERIN的NVIS数据库中。该系统自动执行了大量质量检查流程，以确保描述内容符合NVIS属性标准（ESCAVI, 2003），且各描述内NVIS信息层级的不同级别间保持一致。非植被与非本土植被制图编码的描述信息通过CSV文件完成传输。 以下网站提供了主要植被类群（Major Vegetation Groups）的详细说明： http://www.anra.gov.au/topics/vegetation/pubs/native_vegetation/vegfsheet.html 新南威尔士州（New South Wales）、南澳大利亚州（South Australia）、昆士兰州（Queensland, QLD）以及澳大利亚首都领地（Australian Capital Territory, ACT）的部分区域存在大面积矢量“无数据（NoData）”区块，视觉上呈现为内陆海形态。在澳大利亚首都领地与南澳大利亚州，矢量数据在栅格化前已通过卫星影像作为参考完成“间隙填充”并赋予属性信息。上述区域大多属于主要植被类群24（MVG 24，内陆水域）与主要植被类群25（MVG 25，已开垦区域）的混合类型，部分区域为主要植被类群99（MVG 99，未知类型）。 随后各要素类被栅格化为100米分辨率的栅格数据，且数据范围设定为1000米的整数倍，以确保数据对齐。各州栅格数据随后被合并为这份“全澳范围”栅格数据集。 ## 数据引用 南澳大利亚州环境、水资源与自然资源部（SA Department of Environment, Water and Natural Resources）(2015) 《植被群落——PED》，生物区域评估源数据集。查阅日期：2016年10月12日，来源链接：http://data.bioregionalassessments.gov.au/dataset/4bcddf98-4775-4d1b-8b8d-956476ba35c1。