Dataset Information

Significant and conservative long-range transport of dissolved organic nutrients in the Changjiang diluted water.

ABSTRACT: The Changjiang River is one of the main nutrient sources in the northwestern Pacific marginal seas. However, most of the previous studies have neglected the long-range transport (>200?km) of riverine nutrients since they are rapidly consumed. In this study, we examined the long-range transport (200-800?km) of nutrients in the surface layer during the summer of 2017. The plots of nutrients against salinity display that dissolved organic nitrogen (DON) was conservative over ~800?km, while more than 99% of the dissolved inorganic nitrogen (DIN) was removed within 200?km. As a result, in the study region, DON concentrations (avg. 7.0?±?1.3?µM), which are minor in the river water, were much higher than DIN concentrations (avg. 0.28?±?0.26?µM). Both nutrients, N and P, showed a similar pattern. Our results suggest that dissolved organic nutrients play a critical role on the long-range transport of riverine nutrients in surface waters and subsequent ecosystem changes.

SUBMITTER: Kwon HK

PROVIDER: S-EPMC6109133 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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Significant and conservative long-range transport of dissolved organic nutrients in the Changjiang diluted water.

Kwon Hyeong Kyu HK Kim Guebuem G Hwang Jeomshik J Lim Weol Ae WA Park Jong Woo JW Kim Tae-Hoon TH

Scientific reports 20180824 1

The Changjiang River is one of the main nutrient sources in the northwestern Pacific marginal seas. However, most of the previous studies have neglected the long-range transport (>200 km) of riverine nutrients since they are rapidly consumed. In this study, we examined the long-range transport (200-800 km) of nutrients in the surface layer during the summer of 2017. The plots of nutrients against salinity display that dissolved organic nitrogen (DON) was conservative over ~800 km, while more tha ...[more]

PMID: 30143713

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Dataset Information

Significant and conservative long-range transport of dissolved organic nutrients in the Changjiang diluted water.

Publications

Significant and conservative long-range transport of dissolved organic nutrients in the Changjiang diluted water.

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