Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Mapping background values of atmospheric nitrogen total depositions in Germany based on EMEP deposition modelling and the European Moss Survey 2005 Kartierung der Hintergrundwerte atmosphärischer Stickstoff- | Schroder et al. Environmental Sciences Europe 2011 23 18 http content 23 1 18 o Environmental Sciences Europe a SpringerOpen Journal RESEARCH Open Access Mapping background values of atmospheric nitrogen total depositions in Germany based on EMEP deposition modelling and the European Moss Survey 2005 Kartierung der Hintergrundwerte atmospharischer Stickstoff-Gesamtdepositionen in Deutschland anhand von Daten des EMEP-Messnetzes und des ICP Vegetation Moos-Monitoring 2005 Winfried Schroder12 Marcel Holy1 Roland Pesch 12 Harry Harmens2 and Hilde Fagerli3 Abstract Background In order to map exceedances of critical atmospheric deposition loads for nitrogen N surface data on the atmospheric deposition of N compounds to terrestrial ecosystems are needed. Across Europe such information is provided by the international European Monitoring and Evaluation Programme EMEP in a resolution of 50 km by 50 km relying on both emission data and measurement data on atmospheric depositions. The objective of the article at hand is on the improvement of the spatial resolution of the EMEP maps by combining them with data on the N concentration in mosses provided by the International Cooperative Programme on Effects of Air Pollution on Natural Vegetation and Crops ICP Vegetation of the United Nations Economic Commission for Europe UNECE Long-range Transboundary Air Pollution LTRAP Convention. Methods The map on atmospheric depositions of total N as modelled by EMEP was intersected with geostatistical surface estimations on the N concentration in mosses at a resolution of 5 km by 5 km. The medians of the N estimations in mosses were then calculated for each 50 km by 50 km grid cell. Both medians of moss estimations and corresponding modelled deposition values were ln-transformed and their relationship investigated and modelled by linear regression analysis. The regression equations were applied on the moss kriging estimates of the N concentration in mosses. The respective
