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 tra...

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Autores principales:	Hyeong Kyu Kwon, Guebuem Kim, Jeomshik Hwang, Weol Ae Lim, Jong Woo Park, Tae-Hoon Kim
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/cde4b515156246e89cd66ad48e0a3b0a
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spelling	oai:doaj.org-article:cde4b515156246e89cd66ad48e0a3b0a2021-12-02T15:07:48ZSignificant and conservative long-range transport of dissolved organic nutrients in the Changjiang diluted water10.1038/s41598-018-31105-12045-2322https://doaj.org/article/cde4b515156246e89cd66ad48e0a3b0a2018-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-31105-1https://doaj.org/toc/2045-2322Abstract 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.Hyeong Kyu KwonGuebuem KimJeomshik HwangWeol Ae LimJong Woo ParkTae-Hoon KimNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-7 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hyeong Kyu Kwon Guebuem Kim Jeomshik Hwang Weol Ae Lim Jong Woo Park Tae-Hoon Kim Significant and conservative long-range transport of dissolved organic nutrients in the Changjiang diluted water
description	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.
format	article
author	Hyeong Kyu Kwon Guebuem Kim Jeomshik Hwang Weol Ae Lim Jong Woo Park Tae-Hoon Kim
author_facet	Hyeong Kyu Kwon Guebuem Kim Jeomshik Hwang Weol Ae Lim Jong Woo Park Tae-Hoon Kim
author_sort	Hyeong Kyu Kwon
title	Significant and conservative long-range transport of dissolved organic nutrients in the Changjiang diluted water
title_short	Significant and conservative long-range transport of dissolved organic nutrients in the Changjiang diluted water
title_full	Significant and conservative long-range transport of dissolved organic nutrients in the Changjiang diluted water
title_fullStr	Significant and conservative long-range transport of dissolved organic nutrients in the Changjiang diluted water
title_full_unstemmed	Significant and conservative long-range transport of dissolved organic nutrients in the Changjiang diluted water
title_sort	significant and conservative long-range transport of dissolved organic nutrients in the changjiang diluted water
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/cde4b515156246e89cd66ad48e0a3b0a
work_keys_str_mv	AT hyeongkyukwon significantandconservativelongrangetransportofdissolvedorganicnutrientsinthechangjiangdilutedwater AT guebuemkim significantandconservativelongrangetransportofdissolvedorganicnutrientsinthechangjiangdilutedwater AT jeomshikhwang significantandconservativelongrangetransportofdissolvedorganicnutrientsinthechangjiangdilutedwater AT weolaelim significantandconservativelongrangetransportofdissolvedorganicnutrientsinthechangjiangdilutedwater AT jongwoopark significantandconservativelongrangetransportofdissolvedorganicnutrientsinthechangjiangdilutedwater AT taehoonkim significantandconservativelongrangetransportofdissolvedorganicnutrientsinthechangjiangdilutedwater
_version_	1718388418046590976

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

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