CAJ | 학술논문

为解决海湾入海污染物总量控制中氮磷污染源强统计指标与海水水质标准因子不同的问题，本研究以罗源湾为例，采用现场调查取样和实验室分析结合的方法，通过分析罗源湾表层海水中的CDIN/CTN和CPO4-P/CTP的比值，将海水中DIN与PO4-P浓度的标准值转换成TN与TP的浓度．研究结果表明2009年罗源湾表层海水中的CDIN/CTN和CPO4-P/CTP的比值范围分别为0．12～0．97和0．16～0．91；其中夏季最低，CDIN/CTN和CPO4-P/CTP的比值平均为0．23和0．41，CDIN/CTN比值平面分布上呈湾顶和湾中部低、湾口高的分布趋势，CPO4-P/CTP比值平面分布上呈湾顶至湾口逐步递增的变化趋势；冬季最高，CDIN/CTN和CPO4-P/CTP的比值平均为0．67和0．68，CDIN/CTN比值平面分布上呈湾顶和湾口低、湾中部高的分布趋势，CPO4-P/CTP比值平面分布则相反；年均DIN 和TN 的浓度换算系数为0．48，PO4-P和TP的浓度换算系数为0．55；与其他海域相比，河口型海湾比值总体较高，沿岸海湾高于近海海域．
위해결해만입해오염물총량공제중담린오염원강통계지표여해수수질표준인자불동적문제，본연구이라원만위례，채용현장조사취양화실험실분석결합적방법，통과분석라원만표층해수중적CDIN/CTN화CPO4-P/CTP적비치，장해수중DIN여PO4-P농도적표준치전환성TN여TP적농도．연구결과표명2009년라원만표층해수중적CDIN/CTN화CPO4-P/CTP적비치범위분별위0．12～0．97화0．16～0．91；기중하계최저，CDIN/CTN화CPO4-P/CTP적비치평균위0．23화0．41，CDIN/CTN비치평면분포상정만정화만중부저、만구고적분포추세，CPO4-P/CTP비치평면분포상정만정지만구축보체증적변화추세；동계최고，CDIN/CTN화CPO4-P/CTP적비치평균위0．67화0．68，CDIN/CTN비치평면분포상정만정화만구저、만중부고적분포추세，CPO4-P/CTP비치평면분포칙상반；년균DIN 화TN 적농도환산계수위0．48，PO4-P화TP적농도환산계수위0．55；여기타해역상비，하구형해만비치총체교고，연안해만고우근해해역．
In order to solve the problem of differences between nitrogen and phosphorus pollution intensity and factors of seawater quality for the control of total amount pollution in bays,in situ sampling and laboratory analysis were taken to analyze CDIN/CTN and CPO4-P/CTP of surface seawater in Luoyuan Bay.The results showed that CDIN/CTN and CPO4-P/CTP were 0.12 to 0.97 and 0.16 to 0.91,respectively.The ratios were the lowest in summer with average CDIN/CTN of 0.23 and CPO4-P/CTP of 0.41 .The horizontal distribution of CDIN/CTN was lower in top and central bay and higher in the bay mouth.The horizontal distribution of CPO4-P/CTP gradually increased from the top to the bay mouth. It were highest in winter with average CDIN/CTN of 0.67 and CPO4-P/CTP of 0.68.The horizontal distribution of CDIN/CTN showed lower in the top and the bay mouth and higher in central,which was reversed to the distribution of CPO4-P/CTP.The annual mean CDIN/CTN was 0.48,and the annual mean CPO4-P/CTP was 0.55.Compared with other waters,the ratios were higher in estuarine bays in general and were higher in coastal bays than in coastal waters.