Deposition and concentration of nitrogen and sulphur for protected sites in the UK, 2018-2020

[THIS DATASET HAS BEEN WITHDRAWN]. This dataset provides deposition values of sulphur and nitrogen deposition, deposition of non-marine base cations and concentration values for ammonia (NH3), sulphur dioxide (SO2) and nitrogen oxide (NOx) on the UK nature conservation protected sites, averaged over the years 2018 to 2020. The dataset also includes calculated minimum, maximum and gridded average values for each site. Protected nature sites covered are: (i) Special Areas of Conservation (SAC) (ii) Special Protection Areas (SPA) (iii) Sites of Special Scientific Interest (SSSI). The data consist of values of nitrogen and acid deposition, non-marine base cations deposition, and concentrations of ammonia (NH3) based on the Concentration Based Estimated Deposition (CBED), and concentrations of NOx and SO2 using the Pollution Climate Mapping (PCM) model. Nitrogen and acid deposition data is also given for specific habitat types including: (i) moorland/short vegetation everywhere, (ii) forest everywhere, and (iii) the grid square average over multiple land cover types (i.e. arable, grassland, forest, moorland, urban) These habitat-specific data are recommended for use with critical loads for the calculation of critical load exceedances using the relevant deposition/habitat type. Full details about this dataset can be found at https://doi.org/10.5285/f83a56ef-15ad-4270-aefd-a6ef4b24b4ee【本数据集已撤回】。本数据集提供了2018至2020年平均值下，英国自然保护受保护场地的硫沉降、氮沉降、非海洋源阳离子沉降数据，以及氨（NH3）、二氧化硫（SO2）和氮氧化物（NOx）的浓度数据。本数据集还包含各场地的计算最小值、最大值以及栅格平均值。 涵盖的受保护自然场地包括：(i) 特别保育区（Special Areas of Conservation，SAC）；(ii) 特别保护区（Special Protection Areas，SPA）；(iii) 具特殊科学价值地点（Sites of Special Scientific Interest，SSSI）。 本数据集包含基于浓度估算沉降（Concentration Based Estimated Deposition，CBED）模型得到的氮沉降、酸沉降、非海洋源阳离子沉降数据，以及氨（NH3）的浓度数据；同时包含基于污染气候映射（Pollution Climate Mapping，PCM）模型得到的氮氧化物（NOx）与二氧化硫（SO2）的浓度数据。 此外，本数据集还针对特定生境类型提供了氮沉降与酸沉降数据，包括：(i) 全域高沼地/低矮植被生境；(ii) 全域森林生境；(iii) 多土地覆盖类型（即耕地、草地、森林、高沼地、城镇用地）下的栅格单元平均值。 推荐结合临界负荷使用此类生境专属数据，以基于对应沉降/生境类型计算临界负荷超标情况。本数据集的完整详情可访问：https://doi.org/10.5285/f83a56ef-15ad-4270-aefd-a6ef4b24b4ee