暨南大学学报（自然科学与医学版）
暨南大學學報（自然科學與醫學版）
기남대학학보（자연과학여의학판）
JOURNAL OF JINAN UNIVERSITY（NATURAL SCIENCE & MEDICINE EDITION）
2014年
3期
221-227
,共7页
蔡阳扬%岑竞仪%欧林坚%吕颂辉
蔡暘颺%岑競儀%歐林堅%呂頌輝
채양양%잠경의%구림견%려송휘
珠江口%chemicaloxygendemand(COD)%dissolvedoxygen(DO)%氮磷营养盐%富营养化
珠江口%chemicaloxygendemand(COD)%dissolvedoxygen(DO)%氮燐營養鹽%富營養化
주강구%chemicaloxygendemand(COD)%dissolvedoxygen(DO)%담린영양염%부영양화
thePearlRiverEstuary%chemicaloxygendemand(COD)%dissolvedoxygen(DO)%nutrients%eutrophicationassessment
在2012年夏季（8月）和秋季（11月）对珠江口海域进行化学需氧量（COD）、溶解氧（DO）和氮磷营养盐调查分析，并研究了其分布特征，采用富营养化指数法和潜在性富营养化法对珠江口水体营养化状况进行了分析和评价．结果显示，珠江口海域COD质量浓度较低，夏季平均值为1.85 mg/L，秋季为1.10 mg/L；DO质量浓度较高，夏季平均值为6.95 mg/L，秋季为7.63 mg/L；无机氮污染严重，平均质量浓度夏季为0.85 mg/L，秋季为0.79 mg/L，总体上从北向南递减；无机磷秋季平均质量浓度（0.015 mg/L）显著低于夏季平均质量浓度（0.010 mg/L）．富营养化严重海域主要集中在东北部及伶仃洋一带，基本呈自北向南逐级递减趋势．秋季富营养化程度显著高于夏季，珠江口海域基本上属于磷限制潜在性富营养水平．
在2012年夏季（8月）和鞦季（11月）對珠江口海域進行化學需氧量（COD）、溶解氧（DO）和氮燐營養鹽調查分析，併研究瞭其分佈特徵，採用富營養化指數法和潛在性富營養化法對珠江口水體營養化狀況進行瞭分析和評價．結果顯示，珠江口海域COD質量濃度較低，夏季平均值為1.85 mg/L，鞦季為1.10 mg/L；DO質量濃度較高，夏季平均值為6.95 mg/L，鞦季為7.63 mg/L；無機氮汙染嚴重，平均質量濃度夏季為0.85 mg/L，鞦季為0.79 mg/L，總體上從北嚮南遞減；無機燐鞦季平均質量濃度（0.015 mg/L）顯著低于夏季平均質量濃度（0.010 mg/L）．富營養化嚴重海域主要集中在東北部及伶仃洋一帶，基本呈自北嚮南逐級遞減趨勢．鞦季富營養化程度顯著高于夏季，珠江口海域基本上屬于燐限製潛在性富營養水平．
재2012년하계（8월）화추계（11월）대주강구해역진행화학수양량（COD）、용해양（DO）화담린영양염조사분석，병연구료기분포특정，채용부영양화지수법화잠재성부영양화법대주강구수체영양화상황진행료분석화평개．결과현시，주강구해역COD질량농도교저，하계평균치위1.85 mg/L，추계위1.10 mg/L；DO질량농도교고，하계평균치위6.95 mg/L，추계위7.63 mg/L；무궤담오염엄중，평균질량농도하계위0.85 mg/L，추계위0.79 mg/L，총체상종북향남체감；무궤린추계평균질량농도（0.015 mg/L）현저저우하계평균질량농도（0.010 mg/L）．부영양화엄중해역주요집중재동북부급령정양일대，기본정자북향남축급체감추세．추계부영양화정도현저고우하계，주강구해역기본상속우린한제잠재성부영양수평．
Basedoninvestigationsofchemicaloxygendemand(COD),dissolvedoxygen(DO)and nutrients (nitrogen and phosphorus)in the Pearl River Estuary in summer (August)and autumn (No-vember)in 201 2,the distribution characteristics of physic-chemical parameters of Pearl River estuary were analyzed.Meanwhile,the eutrophication index (EI)and the potential eutrophication assessment were employed to assess the eutrophication state of the study area.The results indicated that the COD was low and the average values in summer and autumn were 1.85 mg/L and 1.1 0 mg/L respectively.The DO in waters was high and the average values in summer and autumn were 6.95 mg/L and 7.63 mg/L.The critical pollutant in the waters was dissolved inorganic nitrogen.It decreased from north to south in the study area,with the average concentration of 0.85 mg/L in summer and 0.79 mg/L in autumn.The av-erage concentration of dissolved inorganic phosphorus in autumn (0.024 mg/L)was much higher than that in summer (0.01 0 mg/L).Moreover,the most severe eutrophication phenomenon mainly occurred in the northeast of the estuary and the area of Lingdingyang waters.The level of the eutrophication index dropped off from north to south as a whole.The data revealed that the eutrophication level was higher in autumn than in summer and the waters was basically at potential eutrophication of phosphorus limit.
