Evidence for organic N deposition and its anthropogenic sources in China

Zhang, Ying; Zheng, L.X.; Liu, Xuejun; Jickells, Tim; Cape, J. N.; Goulding, Keith; Fangmeier, Andreas; Zhang, Fusuo

doi:10.1016/j.atmosenv.2007.12.015

Cited by 161 publications

(110 citation statements)

References 32 publications

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“…In contrast to observations from regions characterized by intensive agricultural practices (e.g., China and midwestern USA) (Fahey et al, 1999;Zhang et al, 2008), NO − 3 showed higher abundances with respect to NH + 4 , implying that combustion processes contributed more significantly than agricultural activities to reactive inorganic nitrogen in our samples (Galloway et al, 2004;Spokes and Jickells, 2005;Lee et al, 2012). A few exceptions were observed in April, May, October, and November (Fig.…”

Section: Concentrations and Speciationcontrasting

confidence: 49%

Sources and fluxes of organic nitrogen in precipitation over the southern East Sea/Sea of Japan

Yan

Kim

2015

Atmos. Chem. Phys.

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Abstract. We measured total dissolved reactive nitrogen in precipitation samples collected at Uljin, a Korean coastal site upwind of the southern East Sea/Sea of Japan (EJS), selected as a representative study site of atmospheric deposition over the northwestern Pacific margin. NO − 3 was found to be the most abundant nitrogen species, followed by NH + 4 and dissolved organic nitrogen (DON). Air-mass back-trajectory (AMBT) analysis revealed that a significant fraction of the inorganic nitrogen (NO − 3 and NH + 4 ) originated from mainland Asia, whereas the DON was primarily derived from Korea. Using varimax-rotated factor analysis in combination with major ions as tracers, agricultural activities in Korea were identified as the primary sources of DON in these samples. In addition, a positive correlation was found at Uljin between the size of organic fraction in total reactive nitrogen and nitrogen to carbon atomic ratio in organic matter. This correlation has also been observed at other locations worldwide, implying the utilization potential of atmospheric organic nitrogen might increase with its proportion in total nitrogen. Combining wet deposition measurements in this study with literature values for dry deposition observed at a remote island in the EJS, the total atmospheric depositional flux of reactive nitrogen was estimated to be 115 mmol N m −2 yr −1 over the southern EJS. Our study sheds new light on the potentially significant contribution to primary productivity of the northwestern Pacific Ocean by atmospheric deposition of nitrogen, especially the organic fraction.

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Section: Concentrations and Speciationcontrasting

confidence: 49%

Sources and fluxes of organic nitrogen in precipitation over the southern East Sea/Sea of Japan

Yan

Kim

2015

Atmos. Chem. Phys.

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“…The highest WSON concentrations were observed in China (North China Plain: 103 µmol N L −1 , Zhang et al, 2008) and in Norwich, UK (33 µmol N L −1 , Cornell et al, 1998). These high values were again attributed to the anthropogenic sources.…”

Section: Positive Matrix Factorization (Pmf) For Source Apportionmentmentioning

confidence: 74%

Atmospheric water-soluble organic nitrogen (WSON) in the eastern Mediterranean: origin and ramifications regarding marine productivity

Nehir

Koçak

2018

Atmos. Chem. Phys.

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Abstract. Aerosol and rain sampling in two size fractions was carried out at a rural site located on the coast of the eastern Mediterranean, Erdemli, Turkey (36 • 33 54 N, 34 • 15 18 E). A total of 674 aerosol samples in two size fractions (337 coarse, 337 fine) and 23 rain samples were collected between March 2014 and April 2015. Samples were analyzed for NO − 3 , NH + 4 and ancillary water-soluble ions using ion chromatography and water-soluble total nitrogen (WSTN) by applying a high-temperature combustion method. The mean aerosol water-soluble organic nitrogen (WSON) was 23.8 ± 16.3 nmol N m −3 , reaching a maximum of 79 nmol N m −3 , with about 66 % being associated with coarse particles. The volume weighted mean (VWM) concentration of WSON in rain was 21.5 µmol N L −1 . The WSON contributed 37 and 29 % to the WSTN in aerosol and rainwater, respectively. Aerosol WSON concentrations exhibited large temporal variation, mainly due to meteorology and the origin of air mass flow. The highest mean aerosol WSON concentration was observed in the summer and was attributed to the absence of rain and resuspension of cultivated soil in the region. The mean concentration of WSON during dust events (38.2 ± 17.5 nmol N m −3 ) was 1.3 times higher than that of non-dust events (29.4 ± 13.9 nmol N m −3 ). Source apportionment analysis demonstrated that WSON was originated from agricultural activities (43 %), secondary aerosol (20 %), nitrate (22 %), crustal material (10 %) and sea salt (5 %). The dry and wet depositions of WSON were equivalent and amounted to 36 % of the total atmospheric WSTN flux.

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“…In the last decade the number of research papers addressing the evaluation of organic nitrogen in precipitation has increased and the mosaic of our knowledge is being continuously supplemented (Neff et al 2002;Cornell et al 2003;Cape et al 2004;Zhang et al 2008;Bencs et al 2009;Benitez et al 2009Benitez et al , 2010Pelster et al 2009;Sleutel et al 2009;Violaki et al 2010).…”

Section: Institute Of Forest Ecology Faculty Of Forestry and Wood Tementioning

confidence: 99%

Organic and inorganic nitrogen in precipitation and in forest throughfall at Bílý Kříž site (Beskydy Mts., Czech Republic)

Drápelová¹

2012

J. For. Sci.

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Organic nitrogen is an important but yet not very well explored component of nitrogen deposition. In this study concentrations and fluxes of organic and inorganic nitrogen in bulk precipitation in an open field (BOF) and in throughfall (THR) were evaluated at the Bílý Kříž experimental site (Moravian-Silesian Beskydy Mts., Czech Republic, 908 m a.s.l.) with a young Norway spruce stand. The results of a two-year study (2008 and 2009) were compared with the results obtained during the same time period on forest plots included in ICP Forests Programme in the Czech Republic. Total nitrogen deposition in BOF at the Bílý Kříž site amounted to about 918 mg·m–2·a–1, the contribution of organic nitrogen was about 8%. Total nitrogen flux with THR at Bílý Kříž was about 1,305 mg·m–2·a–1 during the studied years and organic N accounted for 12% of this amount. The ranges of the two-year average values found for total nitrogen flux on ICP Forests plots throughout the Czech Republic were as follows: 759–1,857 mg N·m–2·a–1 with 7–38% contribution of organic N in BOF and 928–3,816 mg N·m–2·a–1 with 7–20% contribution of organic N in THR. The share of organic nitrogen in THR nitrogen fluxes at Bílý Kříž proved clear seasonality with maxima in July. A highly significant correlation between N-NH4+   and N-NO3–   concentrations in BOF suggested the common anthropogenic source of these substances at the Bílý Kříž site. No significant correlation was found either between organic N and N-NH4+ or between organic N and N-NO3– concentrations in BOF. Cumulative deposition charts showed different behaviour of particular nitrogen deposition components while passing through the canopy.

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Evidence for organic N deposition and its anthropogenic sources in China

Cited by 161 publications

References 32 publications

Sources and fluxes of organic nitrogen in precipitation over the southern East Sea/Sea of Japan

Sources and fluxes of organic nitrogen in precipitation over the southern East Sea/Sea of Japan

Atmospheric water-soluble organic nitrogen (WSON) in the eastern Mediterranean: origin and ramifications regarding marine productivity

Organic and inorganic nitrogen in precipitation and in forest throughfall at Bílý Kříž site (Beskydy Mts., Czech Republic)

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