1996–2015年中国大气无机氮湿沉降时空格局数据集
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基于文献检索的大气无机氮湿沉降站点-年数据,通过克里格空间插值法生成了1996-2000年、2001-2005年、2006-2010年、2011-2015年连续4期的中国氮湿沉降空间格局数据集,其指标包括铵态氮、硝态氮、可溶性无机氮3个指标,空间分辨率为1km×1km,数据格式为tiff。本数据集是基于地面实测数据生成的中国区域大气氮湿沉降空间格局的第一个可公开共享数据集,适用于1km×1km分辨率以上的中国湿沉降及生态效应的时空格局分析。本研究将为中国氮沉降的生态效应、环境效应等研究提供重要的基础数据,也可为国家层面的氮素管理提供政策支持。
Based on site-year data of atmospheric inorganic nitrogen wet deposition retrieved from literature, four consecutive spatial pattern datasets of nitrogen wet deposition in China covering the periods 1996–2000, 2001–2005, 2006–2010, and 2011–2015 were generated using Kriging spatial interpolation. The datasets include three indicators: ammonium nitrogen, nitrate nitrogen, and dissolved inorganic nitrogen, with a spatial resolution of 1 km × 1 km and stored in TIFF format. This is the first publicly available spatial pattern dataset of atmospheric nitrogen wet deposition in China developed from ground-based field measurements, which is applicable to spatiotemporal pattern analysis of wet deposition and its ecological effects in China at resolutions of 1 km × 1 km or higher. This research will provide critical foundational data for studies on the ecological and environmental effects of nitrogen deposition in China, and also offer policy support for national-scale nitrogen management.




