气候变化领域集成服务门户(CCPortal): Respective contribution of urban wastewater and mangroves on nutrient dynamics in a tropical estuary during the monsoon season

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DOI	10.1016/j.marpolbul.2020.111652
	Respective contribution of urban wastewater and mangroves on nutrient dynamics in a tropical estuary during the monsoon season
	Taillardat P.; Marchand C.; Friess D.A.; Widory D.; David F.; Ohte N.; Nakamura T.; Van Vinh T.; Thanh-Nho N.; Ziegler A.D.
发表日期	2020
ISSN	0025326X
卷号	160
英文摘要	Estuaries of Southeast Asia are increasingly impacted by land-cover changes and pollution. Here, our research objectives were to (1) determine the origins of nutrient loads along the Can Gio estuary (Vietnam) and (2) identify the processes that affect the nutrient pools during the monsoon. We constructed four 24-h time-series along the salinity gradient measuring nutrient concentrations and stable isotopes values. In the upper estuary, urban effluents from Ho Chi Minh City were the main input of nutrients, leading to dissolved oxygen saturation <20%. In the lower estuary, ammonium and nitrite concentration peaks were explained by mangrove export. No contribution from aquaculture was detected, as it represents <0.01% of the total river discharge. Along the salinity gradient, nutrient inputs were rapidly consumed, potentially by phytoplankton while nitrate dual-stable isotopes indicated that nitrification occurred. Thus, even in a large and productive estuary, urban wastewater can affect nutrient dynamics with potentially important ecological risks. © 2020 Elsevier Ltd
英文关键词	Ammonium; Aquaculture; Nitrate stable isotopes; Phosphate; Urban effluents; Vegetated coastal ecosystems
语种	英语
scopus关键词	Atmospheric thermodynamics; Dissolved oxygen; Effluents; Estuaries; Forestry; Isotopes; River pollution; Tropics; Dissolved oxygen saturation; Ecological risks; Land-cover change; Nutrient concentrations; Nutrient dynamics; Research objectives; Salinity gradients; Urban wastewater; Nutrients; ammonia; dissolved oxygen; isotope; nitrite; ammonium; aquaculture effluent; concentration (composition); estuary; mangrove; monsoon; nitrite; nutrient dynamics; phosphate; stable isotope; wastewater; aquaculture; Article; biological activity; concentration (parameter); effluent; estuary; mangrove; nitrification; nonhuman; nutrient concentration; nutrient dynamics; nutrient loading; oxygen saturation; phytoplankton; rainy season; salinity; urban area; Viet Nam; waste water; Ho Chi Minh City; Viet Nam; Rhizophoraceae
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148539
作者单位	Department of Geography, National University of Singapore, 1 Arts Link, Singapore, 117570, Singapore; GEOTOP Research Center, Université du Québec à Montréal, Montréal, Canada; IMPMC, Institut de Recherche pour le Développement (IRD), Sorbonne Université, CNRS, MNHN, Noumea, New Caledonia, France; Université de Nouvelle-Calédonie, ISEA, EA 7484, Noumea, New Caledonia, France; Department of Earth and Atmospheric sciences, Université du Québec à Montréal, Montréal, Canada; BOREA Biologie des Organismes et Ecosystèmes Aquatiques, UMR 7208 MNHN CNRS SU UA UCN IRD 207, Muséum National d'Histoire Naturelle, Paris, 75005, France; Biosphere Informatics Laboratory, Kyoto University, Kyoto, Japan; Interdisciplinary Centre for River Basin Environment, Yamanashi University, Japan; Nong Lam University, Linh Trung, Thu Duc, Ho Chi Minh City, Viet Nam; Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam; Faculty of Fisheries and Aquatic Resources, Mae Jo University, Chi...
推荐引用方式 GB/T 7714	Taillardat P.,Marchand C.,Friess D.A.,et al. Respective contribution of urban wastewater and mangroves on nutrient dynamics in a tropical estuary during the monsoon season[J],2020,160.
APA	Taillardat P..,Marchand C..,Friess D.A..,Widory D..,David F..,...&Ziegler A.D..(2020).Respective contribution of urban wastewater and mangroves on nutrient dynamics in a tropical estuary during the monsoon season.Marine Pollution Bulletin,160.
MLA	Taillardat P.,et al."Respective contribution of urban wastewater and mangroves on nutrient dynamics in a tropical estuary during the monsoon season".Marine Pollution Bulletin 160(2020).