海洋科学2016，Vol.40Issue(1)：76-84,9.DOI:10.11759/hykx20150224001
钦州湾海水中石油烃时空变化特征及其影响因素
Spatiotemporal variations of petroleum hydrocarbon and its influencing factors in seawater of Qinzhou Bay
摘要
Abstract
In this study, we conducted four cruises in Qinzhou Bay, a typical aquaculture area in Qinzhou, Guangxi Zhuang Autonomous Region, from January to October 2009, to determine petroleum hydrocarbon (PHC) concen-trations, to analyze the PHC pollution status in the surface seawater, and to determine the spatiotemporal variations of PHC and its influencing factors. Our results show that the concentrations of PHC ranged from 0.001- 0.095 mg/L, with an average of 0.022 mg/L, and the PHC concentrations varied seasonally as follows: summer> au-tumn>winter>spring. The seawater of Qinzhou Bay displayed different PHC pollution levels in summer and winter, and seawater quality fell within the national seawater quality standards for the first and second classes of seawater in spring and autumn. The PHC concentration in the outer bay was higher than that in the inner bay in spring and autumn, and vice versa in summer and winter. Aquaculture activities and land runoff were the main factors influ-encing spatiotemporal variations of PHC in the surface seawater of Qinzhou Bay. The PHC concentration corre-sponds well with water temperature and with dissolved oxygen in spring, and is positively correlated with dissolved inorganic phosphate in summer. Overall, while Qinzhou Bay is only moderately contaminated with PHC at present, steps could be taken to improve its self-purification ability.关键词
石油烃/时空变化/影响因素/污染评价/钦州湾Key words
petroleum hydrocarbon/spatiotemporal variations/influence factor/pollution assessment/Qinzhou Bay分类
海洋科学引用本文复制引用
杨斌,钟秋平,张晨晓,鲁栋梁,梁燕茹,李尚平..钦州湾海水中石油烃时空变化特征及其影响因素[J].海洋科学,2016,40(1):76-84,9.基金项目
广西科学研究与技术开发计划项目(桂科攻No.0992027-1) （桂科攻No.0992027-1）
广西教育厅科研项目(No.201012MS195, No.201106LX546)@@@@Guangxi Science and Technology Development Program, No.0992027-1 （No.201012MS195, No.201106LX546）
Scientific Research Fund of Guangxi Education Depart-ment, No.201012MS195, No.201106LX546 （）
