Native Vegetation - Modelled 2005 Ecological Vegetation Classes (with Bioregional Conservation Status)

This is a derived dataset that delineates the Bioregional Conservation Status of EVCs. (NV2005_EVCBCS) .The dataset is derived from a combination of Victorian bioregions (VBIOREG100), Pre 1750 EVCs (NV1750_EVC) and the current version of Native Vegetation Extent (NV2005_EXTENT). Bioregional conservation status and geographic occurrence are applied to unique Bioregion-EVC units.The dataset underpins the implementation of Victoria's Native Vegetation Management Framework, and the preparation of Regional Vegetation Plans in addition to other biodiversity planning. The dataset requires upgrading when any of the three input datasets change.(Note that this dataset is stored in two Spatial Data Storage Environments within DSE - Arc/Info tiled libraries and Oracle/SDE single data layer. This metadata describes the Arc/Info dataset. The Oracle/SDE dataset is slightly different in that all non-vegetation classes are excluded from the data (ie. Bare rock, sand, non-native vegetation etc.) also the attributes include attributes expanded from Look Up Tables. These have an X_ prefix in the name.)Note erratum under Data Quality-Completeness-Classification本数据集为衍生数据集，旨在刻画生态植被类别（Environmental Vegetation Class，简称EVC）的生物区域保护状况，编号为NV2005_EVCBCS。本数据集由维多利亚州生物区域图层（VBIOREG100）、1750年前生态植被类别数据集（NV1750_EVC）以及当前版本的原生植被覆盖范围数据集（NV2005_EXTENT）整合衍生而来。我们将生物区域保护状况与地理分布信息关联至唯一的"生物区域-EVC"单元。本数据集为维多利亚州原生植被管理框架的落地实施、区域植被规划及其他生物多样性规划工作提供核心支撑。当三类输入数据集任意一项发生变更时，本数据集亦需同步升级。【注】本数据集存储于维多利亚州可持续与环境部（Department of Sustainability and Environment，简称DSE）的两类空间数据存储环境中：一是Arc/Info分幅图库，二是Oracle/SDE单数据图层。本元数据仅针对Arc/Info格式的数据集进行说明。Oracle/SDE格式的数据集存在两处差异：其一，该数据集已剔除所有非植被类别的地物（如裸岩、沙地、非原生植被等）；其二，其属性字段包含从查找表扩展而来的属性，这类字段的名称均带有X_前缀。数据质量-完整性-分类章节项下存在勘误说明。