Area of Habitat Maps for National Key Protected Wildlife in China (1985-2022)

Area of Habitat (AOH) maps show species distribution patterns, and they are vital for predicting species' survival, assessing species habitat loss or restoration, and developing biodiversity conservation strategies. AOH maps are produced by extracting suitable elevation ranges and habitat types from species’ geographic range maps. AOH reduces errors in geographic range maps. National Key Protected Wildlife are species protected by Chinese law, which are important for maintaining China's biodiversity and ecological security. We produced AOH maps for 720 terrestrial National Key Protected Wildlife, covering the years 1985, 1990, 1995, 2000, 2005, 2010, 2015, 2020, and 2022. The maps have a resolution of 30 m. We independently validated the AOH maps. On average, AOH maps for all validated species show a mean point and model prevalence of 0.84 ± 0.20 SD and 0.49 ± 0.27 SD, with 97.03% of the species' AOH maps perform better than random. Additionally, all species' AOH maps are spatially overlaid to generate a species richness map, representing the number of species at each grid of 30×30m.All maps are stored in a file geodatabase (.gdb) format, which is accessible and operable using ArcGIS or ArcGIS Pro. The map values are set to 1 for the AOH area and Null for the background. Each species' AOH map is named using its scientific name followed by the year (e.g., Ailuropoda_melanoleuca_2020). The nine AOH maps for the same species, corresponding to nine time points, are stored in a single file geodatabase named using the species' scientific name and Chinese name. The values in the species richness maps represent the number of species at each grid, and the maps are named using the format “Richness_All/Class1/Class2_year”. There are also three information tables in the database. The Species AOH information table records the geographic range, habitat, and elevation preference information and data sources for each species. The Translation table records the mapping of each terrestrial habitat type of IUCN habitat classification scheme to the land cover type of GLC_FCS30D.The AOH Validation table records the validation results (Point prevalence and Model prevalence) for each AOH maps.In this version we have made some new revisions and refinements。We have removed the AOH maps of strictly marine species from the database. And we have strictly distinguishing between water body habitat types and wetland habitat types for all relevant species.

生境面积（Area of Habitat, AOH）地图可呈现物种分布格局，在预测物种生存状态、评估物种生境流失或修复情况，以及制定生物多样性保护战略等方面均具备关键价值。AOH地图通过从物种地理分布范围地图中提取适宜的海拔区间与生境类型生成，能够修正地理分布范围地图中存在的误差。国家重点保护野生动物（National Key Protected Wildlife）是受中国法律保护的物种，对于维护我国生物多样性与生态安全至关重要。本数据集为729种陆生国家重点保护野生动物生成了AOH地图，时间跨度涵盖1985年、1990年、1995年、2000年、2005年、2010年、2015年、2020年与2022年，地图分辨率为30米。我们对生成的AOH地图开展了独立验证。经检验，所有验证物种的AOH地图平均点位检出率（Point prevalence）为0.84 ± 0.21 标准差（SD），模型检出率（Model prevalence）为0.49 ± 0.27 标准差（SD），其中97.34%的物种AOH地图表现优于随机预测结果。此外，我们将所有物种的AOH地图进行空间叠加，生成了物种丰富度地图，该地图可展示每个30×30米网格内的物种数量。所有地图均以文件地理数据库（file geodatabase, .gdb）格式存储，可通过ArcGIS或ArcGIS Pro进行访问与操作。AOH地图的栅格值设置为：生境区域为1，背景区域为空值（Null）。单个物种的AOH地图以其学名加年份的格式命名（例如：Ailuropoda_melanoleuca_2020）。同一物种对应9个时间节点的9幅AOH地图，被存储在以该物种学名与中文名称命名的单个文件地理数据库中。物种丰富度地图的栅格值代表每个网格内的物种数量，其命名格式为"Richness_All/Class1/Class2_year"。该数据库中还包含3张信息表：其一为物种AOH信息表，记录了各物种的地理分布范围、生境类型、海拔偏好信息以及数据来源；其二为映射表，记录了世界自然保护联盟（International Union for Conservation of Nature, IUCN）生境分类体系中的各类陆生生境类型与GLC_FCS30D土地覆盖类型的对应关系；其三为AOH验证表，记录了每幅AOH地图的验证结果（点位检出率与模型检出率）。在本版本中，我们对物种AOH信息表中的数据源进行了重构，将海拔与生境信息拆分为两列，以便用户能够高效且准确地检索对应数据。此外，我们还在物种AOH信息表中添加了来自IUCN数据库的物种识别编码，以实现快速的分类学鉴定与数据关联。

搜集汇总

背景与挑战

背景概述

该数据集涵盖中国729种国家关键保护野生动物1985-2022年的高分辨率（30米）栖息地面积地图，通过验证确保准确性，并包含物种丰富度及详细栖息地偏好信息，适用于生物多样性研究和保护策略制定。