Bulk sulfur (S) deposition in China. (June 2016)

• Record Type: Journal Article
• Authors: Liu, Lei; Zhang, Xiuying; Wang, Shanqian; Zhang, Wuting; Lu, Xuehe
• Is Part Of: Atmospheric environment. Volume 135(2016)
• Page Start: 41
• Page End: 49
• Publication Date: 2016-06
• Subjects: Bulk deposition -- Sulfur -- Sources -- Spatial distribution; Air -- Pollution -- Periodicals; Air -- Pollution -- Meteorological aspects -- Periodicals; 551.51
• DOI: 10.1016/j.atmosenv.2016.04.003
• Languages: English
• ISSNs: 1352-2310

Abstract

Abstract: A systematic dataset of an observation network on a national scale has been organized to investigate the spatial distribution of bulk sulfur (S) deposition (Sdep ) throughout China during 2000–2013, representing by far the most detailed data set to track the bulk sulfur deposition throughout China since 2000. Such a dataset is needed for ecosystem studies and for developing emission control policies. Bulk Sdep values showed great variations, ranging from 2.17 to 70.55 kg ha −1 y −1, with an average of 22.99 kg ha −1 y −1 . The average rate of bulk Sdep located in East Coastal region (35.97 kg ha −1 y −1 ), Middle Yangtze region (57.90 kg ha −1 y −1 ), Middle Yellow River region (23.42 kg ha −1 y −1 ), North Coastal region (42.19 kg ha −1 y −1 ), Northeast region (34.28 kg ha −1 y −1 ), South Coastal region (36.97 kg S ha −1 y −1 ), Southwest region (33.85 kg ha −1 y −1 ) was 4.50, 7.24, 2.93, 5.28, 4.29, 4.63 and 4.24 times than that in Northwest region (7.99 kg ha −1 y −1 ). Bulk Sdep over China was mainly from fossil fuel combustion (76.96%), biomass burning (7.64%), crust (6.22%), aged sea salt (5.48%) and agriculture (3.68%). A systematic observation network on a national scale should be established to conduct a long-term monitoring atmospheric Sdep (including wet and dry deposition), based on exiting ecological stations administrated by different departments in China. Highlights: Gridded S deposition dataset in China during 2000–2013 was developed in this study. Spatial heterogeneity ought to be considered in estimating China's S deposition. Potential sources to the magnitude of S deposition in China were determined.