钦州湾表层海水温度盐度及pH值时空变化  

Temporal and spatial variations of temperature,salinity and pH of surface seawater in the Qinzhou Bay,Guangxi,China

作　　者：杨斌[1,2] 张晨晓[1,2] 钟秋平[1,2] 鲁栋梁[1,2] 李尚平[1,2] 

机构地区：[1]钦州学院北部湾海洋保护与开发利用广西高校重点建设实验室,广西钦州535000 [2]钦州学院海洋学院,广西钦州535000

出　　处：《钦州学院学报》2012年第3期1-5,共5页Journal of Qinzhou University

基　　金：广西自然科学基金项目(桂科自0832018Z);广西科学研究与技术开发计划项目(桂科攻0895004-4);广西科学研究与技术开发计划项目(桂科攻0992027-1);广西教育厅科研项目(200807LX330);广西教育厅科研项目(201106LX546);钦州学院校级科研项目(2011XJKY-11B)

摘　　要：根据2009年春夏秋冬4个季节调查资料,分析钦州湾表层海水温度、盐度及pH值的季节变化和分布特征。结果表明:钦州湾海水平均温度春季20.4℃,夏季30.1℃,秋季16.0℃,冬季14.6℃,变化特征与气温的季节变化相同,空间分布为夏秋季河口区的水温都略高于湾口区,而春冬季则相反。海水平均盐度春季20.067,夏季17.975,秋季23.864,冬季23.660,表现为秋季>冬季>春季>夏季,各季节空间分布总体表现为河口区低,湾口区高的趋势。海水pH平均值春季7.82,夏季8.11,秋季8.01,冬季8.10,全年空间分布高值区均出现在大风江口外海域。钦州湾海水比较适宜大蚝、对虾、文蛤等广温广盐性品种的海水养殖。The seasonal variation and distribution of temperature, salinity and pH value of surface seawater are analyzed according to the measurements of seawater in Qinzhou Bay, Guangxi, and Southern China in 2009. The results show that the average seawater temperature is 20.4℃ in spring, 30.1 ℃ in summer, 16.0 ℃ in autumn, 14.6℃ in winter. The seasonal variation of seawater temperature is the same as that of air temperature. The seawater temperature in the estuary is slightly higher than that in the bay in summer and autumn, and reverses in spring and winter. The average salinity is 20.067 in spring, 17. 975 in summer, 23. 864 in autumn, 23. 660 in winter, and shows decline in the order of autumn, winter, spring, summer. The spatial distributions of these seasons display high salinity in the estuary and low salinity in the bay. The average value of pH in the sur-face seawater is 7.82 in spring, 8. ll in summer, 8.01 in autumn, and 8：10 in winter. The high pH values appeared in the outer area of the Wind River for four seasons. It is suggested that Qinzhou Bay is favor to maricuhure such as oyster, penaeid and clam.

关 键 词：温度 盐度 PH值 钦州湾 

分 类 号：P731[天文地球—海洋科学]