气候变化领域集成服务门户(CCPortal): Isotopic evidence for the shift of nitrate sources and active biological transformation on the western coast of Guangdong Province; South China

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DOI	10.1016/j.marpolbul.2019.04.026
	Isotopic evidence for the shift of nitrate sources and active biological transformation on the western coast of Guangdong Province; South China
	Lao Q.; Chen F.; Liu G.; Chen C.; Jin G.; Zhu Q.; Wei C.; Zhang C.
发表日期	2019
ISSN	0025326X
起始页码	603
结束页码	612
卷号	142
英文摘要	Dual isotope nitrate (NO3−) analysis was performed on the western coast of Guangdong Province to investigate seasonal changes in the main nitrate sources and their biogeochemical processing, which are due to the rapid development of the local economy. In the nearshore area, significant seasonal variations of nitrate sources occurred. The dominant nitrate sources, originating from manure and sewage, suggested that the nitrate along the west coast of Guangdong Province was mainly influenced by local cities despite the westward flow of diluted Pearl River water. In the offshore area, the nitrate loss in the upper and mid water during both two seasons mainly caused by phytoplankton assimilation, whereas coupled nitrification-denitrification could be responsible for the nitrate loss in the bottom waters during summer. Our results suggest that, with the rapid development of local economy, the nitrate sources in the coastal area have shifted to manure and sewage from the local cities. © 2019 Elsevier Ltd
英文关键词	Bayesian isotope mixing model; Dual isotope; Nitrate; Western coast of Guangdong Province
语种	英语
scopus关键词	Fertilizers; Isotopes; Manures; Offshore oil well production; Sewage; Biogeochemical; Biological transformation; Guangdong Province; Mixing models; Nitrate sources; Nitrification-denitrification; Seasonal changes; Seasonal variation; Nitrates; isotope; nitrate; sea water; fertilizer; nitric acid derivative; nitrogen; sea water; biotransformation; coastal water; denitrification; isotopic analysis; manure; nitrate; nitrification; phytoplankton; sewage; Article; biogeochemistry; biotransformation; China; controlled study; denitrification; dilution; economic development; manure; nitrate metabolism; nitrate source; nitrification; nitrogen fixation; nonhuman; phytoplankton; seasonal variation; sewage; spring; summer; analysis; chemistry; environmental monitoring; metabolism; procedures; season; water pollutant; China; Guangdong; China; Denitrification; Environmental Monitoring; Fertilizers; Manure; Nitrates; Nitrification; Nitrogen Isotopes; Phytoplankton; Seasons; Seawater; Sewage; Water Pollutants, Chemical
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/149913
作者单位	College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, 524088, China; Marine Environmental Monitoring Centre of Beihai, State Oceanic Administration, Beihai, 536000, China; Guangdong Province Key Laboratory for Coastal Ocean Variation and Disaster Prediction, Guangdong Ocean University, Zhanjiang, 524088, China
推荐引用方式 GB/T 7714	Lao Q.,Chen F.,Liu G.,et al. Isotopic evidence for the shift of nitrate sources and active biological transformation on the western coast of Guangdong Province; South China[J],2019,142.
APA	Lao Q..,Chen F..,Liu G..,Chen C..,Jin G..,...&Zhang C..(2019).Isotopic evidence for the shift of nitrate sources and active biological transformation on the western coast of Guangdong Province; South China.Marine Pollution Bulletin,142.
MLA	Lao Q.,et al."Isotopic evidence for the shift of nitrate sources and active biological transformation on the western coast of Guangdong Province; South China".Marine Pollution Bulletin 142(2019).