中国环境科学
中國環境科學
중국배경과학
CHINA ENVIRONMENTAL SCIENCE
2014年
11期
2905-2911
,共7页
颗粒有机物%时空分布%来源%滞留时间%沿岸水%深圳湾%伶仃洋
顆粒有機物%時空分佈%來源%滯留時間%沿岸水%深圳灣%伶仃洋
과립유궤물%시공분포%래원%체류시간%연안수%심수만%령정양
particulate organic matter%temporal and spatial distributions%sources%residence time%coastal waters%Shenzhen Bay%Lingdingyang
依据2000~2011年每月一次的调查资料,简要描述和讨论了深圳湾及邻近水域中颗粒有机物(POM)质量浓度的时空分布,并结合盐度和叶绿素a (Chl a)实测数据探讨POM的来源和滞留时间.结果表明深圳湾的POM质量浓度和陆源质量分数分别约为4.2mg/L,79%,而伶仃洋东部沿岸的分别约为1.9mg/L,42%.深圳湾和伶仃洋东部沿岸中现存浮游植物颗粒有机物(PPOM)：Chl a比率分别约为92,54g/g,由此估算的PPOM质量浓度分别为0.8,0.2mg/L左右.依据浮游植物生产力和累计海源POM估算的POM滞留时间在深圳湾中为1~5d,而在伶仃洋东部沿岸中约为10d.研究期间伶仃洋东部沿岸POM质量浓度的年际变化略呈上升趋势,从1.7mg/L上升至2.0mg/L；深圳湾POM质量浓度在2000~2005年呈上升趋势,从3.0mg/L上升至5.5mg/L,在2006~2011年则呈下降趋势,从5.4mg/L下降至3.0mg/L.
依據2000~2011年每月一次的調查資料,簡要描述和討論瞭深圳灣及鄰近水域中顆粒有機物(POM)質量濃度的時空分佈,併結閤鹽度和葉綠素a (Chl a)實測數據探討POM的來源和滯留時間.結果錶明深圳灣的POM質量濃度和陸源質量分數分彆約為4.2mg/L,79%,而伶仃洋東部沿岸的分彆約為1.9mg/L,42%.深圳灣和伶仃洋東部沿岸中現存浮遊植物顆粒有機物(PPOM)：Chl a比率分彆約為92,54g/g,由此估算的PPOM質量濃度分彆為0.8,0.2mg/L左右.依據浮遊植物生產力和纍計海源POM估算的POM滯留時間在深圳灣中為1~5d,而在伶仃洋東部沿岸中約為10d.研究期間伶仃洋東部沿岸POM質量濃度的年際變化略呈上升趨勢,從1.7mg/L上升至2.0mg/L；深圳灣POM質量濃度在2000~2005年呈上升趨勢,從3.0mg/L上升至5.5mg/L,在2006~2011年則呈下降趨勢,從5.4mg/L下降至3.0mg/L.
의거2000~2011년매월일차적조사자료,간요묘술화토론료심수만급린근수역중과립유궤물(POM)질량농도적시공분포,병결합염도화협록소a (Chl a)실측수거탐토POM적래원화체류시간.결과표명심수만적POM질량농도화륙원질량분수분별약위4.2mg/L,79%,이령정양동부연안적분별약위1.9mg/L,42%.심수만화령정양동부연안중현존부유식물과립유궤물(PPOM)：Chl a비솔분별약위92,54g/g,유차고산적PPOM질량농도분별위0.8,0.2mg/L좌우.의거부유식물생산력화루계해원POM고산적POM체류시간재심수만중위1~5d,이재령정양동부연안중약위10d.연구기간령정양동부연안POM질량농도적년제변화략정상승추세,종1.7mg/L상승지2.0mg/L；심수만POM질량농도재2000~2005년정상승추세,종3.0mg/L상승지5.5mg/L,재2006~2011년칙정하강추세,종5.4mg/L하강지3.0mg/L.
Based on the data obtained from monthly cruises from 2000 to 2011, temporal and spatial distribution of the particulate organic matter (POM) concentration in Shenzhen Bay and the coastal eastern Lingdingyang Estuary were discussed. Sources and residence time of POM were also investigated by combining measurements of the salinity with chlorophyll a (Chl a). The results showed that POM concentration and terrestrial fraction were about 4.2mg/L and 79%in Shenzhen Bay, and about 1.9mg/L and 42%in the coastal eastern Lingdingyang Estuary respectively. The ratios of the phytoplankton POM (PPOM):Chl a were about 92 and 54g/g, based on which the PPOM concentrations were estimated at about 0.8 and 0.2mg/L, in Shenzhen Bay and the coastal eastern Lingdingyang Estuary respectively. On the basis of the phytoplankton productivity and integrated marine POM, the POM residence time was estimated to be from 1~5 days in the Shenzhen Bay and about 10days in the coastal eastern Lingdingyang Estuary. The POM concentration increased slightly from 1.7 to 2.0mg/L in the coastal eastern Lingdingyang Estuary in the period 2000~2011, while increased from 3.0 to 5.5mg/L in the period 2000~2005 and decreased from 5.4 to 3.0mg/L in the period 2006~2011 in the Shenzhen Bay.
