Atmospheric deposition of inorganic nitrogen to the eastern China seas and its implications to marine biogeochemistry

Abstract

[1] Atmospheric deposition of nitrogen to the eastern China seas has been simulated using the MM5/CMAQ model with the 2004 national emission inventory of China. Dry and wet fluxes are 0.05-0.5 and 0.2-0.6 g m −2 yr −1 , respectively, with the wet deposition accounting for 79% of the total. −1 from the mainland, including riverine discharge, industrial wastewater, and domestic wastewater. Deposition of atmospheric ammonium can account for 56% of the external total input, which is 1.1-1.5 times the input from the major rivers to all the eastern China seas. Ammonium deposition to the Yellow Sea accounts for as much as 87% of the total input. The annual total nitrogen deposition can be converted to new primary biological productivity of 100-200 mmol C m −2 yr −1, or 1.1-3.9% of the new productivity in the East China Sea. Our results suggest that atmospheric deposition has important impact on biological productivity in all the eastern China seas.Citation: Zhang, Y., Q. Yu, W. Ma, and L. Chen (2010), Atmospheric deposition of inorganic nitrogen to the eastern China seas and its implications to marine biogeochemistry,

Characterization of carbonaceous aerosols over the East China Sea: The impact of the East Asian continental outflow

“…There have also been several studies on the occurrence and sources of nutrients, heavy metals in dust, and trace elements in the atmosphere over the ECS (Hsu et al, 2009(Hsu et al, , 2010Zhang et al, 2010;Guo et al, 2014). The occurrence of organic and elemental carbon associated with the East Asian outflow was also measured during a cruise campaign in the ECS (Huebert et al, 2004).…”

Stimulation of long-term ammonium nitrogen deposition on methanogenesis by Methanocellaceae in a coastal wetland

“…Impacts by nitrogen deposition occur on a global scale, especially in terrestrial ecosystems (Asner et al, 2001;Matson et al, 2002). Meanwhile, nitrogen deposition affects various ecological types, such as marine (Zhang et al, 2010), forest (Zhang et al, 2016), grassland (Gomez-Casanovas et al, 2016), lake (Hobbs et al, 2016), and coastal (Pakeman et al, 2016) systems. Understanding of how nitrogen deposition affects coastal wetlands is limited, although this type of ecosystem is vulnerable to environmental change (Wolters et al, 2016).…”

Influence of Rough Flow over Sea Surface on Dry Atmospheric Deposition Velocities

“…The deposition module using the above sea surface roughness scheme has been used to simulate atmospheric nitrogen deposition to the east China seas (Zhang et al 2010).…”

“…Nowadays, most studies on atmospheric deposition over water surfaces have mainly concentrated on particle, very few involved a gaseous substance. However, the contribution of gaseous substances to deposition fluxes to sea surface has been shown to be very important (Rendell et al 1993;De Leeuw et al 2003;Zhang et al 2010). The gaseous dry deposition process is greatly influenced by meteorological parameters and its temporal and spatial variation is significant (Gao and Wesely 1995;Ma and Daggupaty 2000;Zhang et al 2004Zhang et al , 2007.…”