Spatiotemporal Changes of Nutrients and Eutrophication in a Semi-Enclosed Bay, Southeast China

Qingsheng Li, Cui Wang, Jinlong Jiang, Siting Chen

2018

Abstract

According to the data of water quality monitoring in Xiamen Bay in May and October 2010, we analysed the spatiotemporal variation trend of nutrients and eutrophication, discussed the main potential sources. The results show that Western Sea, Jiulong River Estuary and Tongan Bay were the high value areas for chemical oxygen demand (COD), dissolved inorganic nitrogen (DIN) and active phosphate (PO4-P). The eutrophication level decreased from Western Sea and Jiulong Estuary to Southeast Sea and Dadeng Sea. The eutrophication in May was lower than that in October. The proportion of ammonia nitrogen was higher in Western Sea and Tongan Bay, while in the Jiulong Estuary, Southeast Sea and Dadeng Seas, the proportion of nitrate nitrogen was higher. Poor hydrodynamic forces, land-based pollution and short-term strong rainfall might contribute to eutrophication. Correlation analysis showed that the main sources of pollution were land-based sources. The origins of COD, NO2-N and NH3-N were similar. Changes in DO might be related to the N/P ratio. The research results could provide technical support for marine environmental protection in Xiamen Bay.

Paper Citation

in Harvard Style

Li Q., Wang C., Jiang J. and Chen S. (2018). Spatiotemporal Changes of Nutrients and Eutrophication in a Semi-Enclosed Bay, Southeast China.In Proceedings of the International Workshop on Environment and Geoscience - Volume 1: IWEG, ISBN 978-989-758-342-1, pages 120-125. DOI: 10.5220/0007426801200125

in Bibtex Style

@conference{iweg18,
author={Qingsheng Li and Cui Wang and Jinlong Jiang and Siting Chen},
title={Spatiotemporal Changes of Nutrients and Eutrophication in a Semi-Enclosed Bay, Southeast China},
booktitle={Proceedings of the International Workshop on Environment and Geoscience - Volume 1: IWEG,},
year={2018},
pages={120-125},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007426801200125},
isbn={978-989-758-342-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the International Workshop on Environment and Geoscience - Volume 1: IWEG,
TI - Spatiotemporal Changes of Nutrients and Eutrophication in a Semi-Enclosed Bay, Southeast China
SN - 978-989-758-342-1
AU - Li Q.
AU - Wang C.
AU - Jiang J.
AU - Chen S.
PY - 2018
SP - 120
EP - 125
DO - 10.5220/0007426801200125