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[THIS DATASET HAS BEEN WITHDRAWN].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。该数据集提供了英国自然保护地保护区域内硫和氮的沉降值、非海洋碱基阳离子沉降以及氨（NH3）、二氧化硫（SO2）和氮氧化物（NOx）的浓度值，数据平均覆盖了2018年至2020年。数据集还包括每个地点计算出的最小值、最大值和网格平均值。受保护的自然资源地点包括：（i）特别保护区域（SAC）、（ii）特别保护区（SPA）以及（iii）具有特殊科学兴趣的地点（SSSI）。数据包括基于浓度估计沉降（CBED）的氮和酸沉降值、非海洋碱基阳离子沉降值，以及基于污染气候映射（PCM）模型的NOx和SO2浓度值。此外，还提供了特定栖息地类型的氮和酸沉降数据，包括：（i）遍布各地的荒野/短植被、（ii）遍布各地的森林以及（iii）多种土地覆盖类型（即耕地、草地、森林、荒野、城市）的网格平均。这些针对特定栖息地的数据建议与临界负荷一起使用，以计算临界负荷超过值。关于此数据集的详细信息，请参阅https://doi.org/10.5285/f83a56ef-15ad-4270-aefd-a6ef4b24b4ee。