美国西部板内深震及其与岩石圈温度的关系     

Wong  IG 刘瑞文 《地震地质译丛》1991,13(4):1-5

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Heavy metal contamination in mangrove habitats of Singapore   总被引：1，自引：0，他引：1  

Cuong DT  Bayen S  Wurl O  Subramanian K  Wong KK  Sivasothi N  Obbard JP 《Marine pollution bulletin》2005,50(12):1732-1738

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南海北部时间系列沉降颗粒的有机地球化学特征及意义   总被引：3，自引：1，他引：3  

陈建芳 Wong  HK 《地球化学》1997,26(6):47-56

通过对南海北部用大孔径沉积物捕获器采集的时间系列沉降颗粒样品中总有机碳，总氮，氨基酸与单糖组分以及叶绿素等有机组分的分析，揭示了南海颗粒物质中有机组分的主要特征，表明沉降颗粒物质中有机质主要来自近期生长的海洋浮游生物，并进一步推断季风对南海北部沉降颗粒物质通量及有机组分具有重要的控制作用。  相似文献   

Fate of polycyclic aromatic hydrocarbon (PAH) contamination in a mangrove swamp in Hong Kong following an oil spill     

Ke L  Wong TW  Wong YS  Tam NF 《Marine pollution bulletin》2002,45(1-12):339-347

The fate of polycyclic aromatic hydrocarbon (PAH) contamination in a mangrove swamp (Yi O) in Hong Kong after an oil spill accident was investigated. The concentrations and profiles of PAHs in surface sediments collected from five quadrats (each of 10 m×10 m) covering different degrees of oil contamination and the most contaminated mangrove leaves were examined in December 2000 (30 days after the accident) and March 2001 (126 days later). The concentrations of total PAHs in surface sediments ranged from 138 to 2135 ng g⁻¹, and PAHs concentrations decreased with time. In the most contaminated sediments, total PAHs dropped from 2135 (30 days) to 1196 ng g⁻¹ (120 days), and the decrease was smaller in less contaminated sediments. The percentage reduction in sediment PAHs over three months (44%) was less significant than that in contaminated leaves (85%), indicating PAH in or on leaves disappeared more rapidly. The PAH profiles were very similar in sediments collected from quadrats Q1 and Q2 with benzo[a]anthracene and pyrene being the most abundant PAH compounds, but were different in the other three quadrats. The proportion of the light molecular weight PAHs to total PAHs increased after three months, especially phenanthrene. Results suggest that physical and photo-chemical weathering (tidal washing and photo-oxidation) of crude oil in surface sediments and on plant leaves were important processes in the first few months after the oil spill. The PAH contamination in Yi O swamp came from both petrogenic and pyrolytic sources. The petrogenic characteristic in the most contaminated sediment was confirmed with high values of phenanthrene to anthracene ratio (>10) and low values of fluoranthene to pyrene ratio (0.3–0.4).  相似文献   

The pathway and fate of the heavy metal mixture in Xiamen marine experiment enclosures     

Li Jinxi  Du Ronggui  Zhang Gongxun  C. S. Wong  R. W. Macdonal  W. K. Johnson 《海洋学报(英文版)》1990,9(3):389-403

The pathway and fate of heavy metals were studied in 10m3 enclosures at Xiamen Bay in 1985. The dissolved metals added are removed rather quickly during the first days, and their half-removal times ( t1/2) (d) are as follows: Pb 5. 4-5. 8, Hg 6. 7-14, Zn 11-22, Cu 16 - 29, and Cd 30-89. Zinc is transferred biologically to particles during phytoplankton bloom. The main Fate of added metals after 27 days is as follows; over 80% Cd and 60% Cu remain in dissolved phase, more than 60% Pb and 50% Hg transfer to settling settlement, while Zn is equally distributed in dissolved phase and settling settlement. The wall uptake is less than 2% of the total metals added. Organic materials play an essential role in the partition and the transfer of heavy metals in water column. Terrigenous and autochthonous particles show different affinities to different metals. Most heavy metals associate weakly with zooplankton. The Binding of Cd, Pb, Zn and Cu to the particles shows distinctive features related to the diagenetic  相似文献   

古海洋与古气候演化的生物标志化合物记录     

陈建芳 《海洋通报》1996,15(5):33-37

海洋沉积中的生物标志化合物记录了不同时空尺度下海洋与气候变迁的历史。从这些地质档案中，运用分子有机地球化学的理论与方法提取古环境参数，辅以各种方法的定年技术建立时间标尺，可以反映从区域到全球，不同时间分辨率下的环境演变。本文以古海水表现温度的分子地层记录以以及有要分子碳同位素组成作为古大气ＣＯ２分压的指标为例，阐述分子有机地球化学在古全球变化研究中的最新进展。  相似文献   

Environmental monitoring of the Zhujiang Estuary and its coastal waters     

J. C. Chen  L. Dong  L. A. Wong  G. W. Heinke 《海洋学报(英文版)》2002,21(2):275-304

The Zhujiang (Pearl River) Estuary is a complex water system whose catchments basincovers a very large part of southern China. The large quantity of fresh water carried by the river system flows into the northern coast of the South China Sea through its eight inlets. The Zhujiang River Delta has experienced the fastest economic growth in China during the past two decades. Rapid population expansion and increased industrial development coupled with insufficient waste management turned the Zhujiang Estuary into waste disposal channels just before entering the coastal waters. The water quality of the estuaries and the coastal oceans has become polluted. During the past two years, an intensive study and monitoring efforts of the pollutions of these waters have been made. A systematic and integrated monitoring task including shore-based measurements, shipboard in-situ measurements, and satellite and radar remote sensing surveys has been completed. Comprehensive collection of physical, chemical and biological  相似文献   

Penaeoid shrimp fisheries resources in the Zhujiang Estuary     

Chu Ka-hou  Chen Qingchao  Huang Liangmin  Zhang Guxian  YinJianqiang  Wong Chong-kim 《海洋学报(英文版)》1997,16(1):127-131

INTRODUCTIONThe Zhujiang (Pearl River) Estuary (22°00′-22°45′N, 113°30′-114°00′E), created by the inflow of fresh water from various tributaries of the Zhujiang, is the largest estuarine system in the southern China with an area of about 2 300 km2 . Average depth of the water body is about  相似文献   

Modelling nitrogen and phosphorus cycles and dissolved oxygen in the Zhujiang Estuary Ⅱ. Model results   总被引：2，自引：1，他引：2  

Guan Weibing  Wong Lai-Ah  Xu Dongfeng 《海洋学报(英文版)》2001,20(4):505-514

In the present study, the ecosystem-based water quality model was applied to the Pearl River (Zhujiang) Estuary. The model results successfully represent the distribution trend of nutrients and dissolved oxygen both in the horizontal and vertical planes during the flood season, and it shows that the model has taken into consideration the key part of the dynamical, chemical and biological processes existing in the Zhujiang Estuary. The further studies illustrate that nitrogen is in plenty while phosphorus and light limit the phytoplankton biomass in the Zhujiang Estuary during the flood season.  相似文献   

V.K.Ting,Scientist and Patriot.     

W.H.Wong. 《地理学报》1935,(4)

In the lamented death of Dr. V. K. Ting on January 5th, 1936, at the age of49, China suffered an irredeemable loss. He may be called the founder of thescience of geology in China, and it was in geological field work that his con-  相似文献