Deposition and concentration values for protected sites in the UK (2013-2015)

This dataset provides deposition values of sulphur and nitrogen deposition and concentration values for ammonia (NH3), sulphur dioxide (SO2) and nitrogen oxide (NOx) on the UK nature conservation protected sites, averaged over the years 2013 to 2015. 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, 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/10.5285/487b9d48-ec67-4b4e-a758-093a52d2d73b本数据集涵盖2013至2015年英国自然保护受保护场地的硫沉降、氮沉降数值，以及氨（ammonia, NH3）、二氧化硫（sulphur dioxide, SO2）与氮氧化物（nitrogen oxide, NOx）的浓度数值，所有数据均以该三年时段的平均值计。本数据集同时包含各监测场地的计算最小值、最大值及栅格平均值。本次覆盖的自然保护受保护场地包括：(i) 特殊保护区（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）。本数据集的氮沉降、酸沉降数值及氨（NH3）浓度均基于浓度的估算沉降（Concentration Based Estimated Deposition, CBED）方法计算得到，而氮氧化物（NOx）与二氧化硫（SO2）浓度则通过污染气候映射（Pollution Climate Mapping, PCM）模型测算得出。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，具体涵盖：(i) 全域荒原/短植被生境；(ii) 全域森林生境；(iii) 覆盖耕地、草地、森林、荒原、城镇用地等多种土地利用类型的栅格单元平均值。针对特定生境类型的沉降数据，推荐与临界负荷结合使用，以基于对应沉降与生境类型计算临界负荷超标量。本数据集的完整详细信息可通过以下链接获取：https://doi.org/10.5285/487b9d48-ec67-4b4e-a758-093a52d2d73b