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《Journal of Tropical Oceanography》 2004-05
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ENVIRONMENT CHANGES AND TRENDS IN DAYA BAY IN RECENT 20 YEARS

WANG You-shao ~(1, 2), WLab of Tropical Marine Environmental Dynamics, CAS, Guangzhou 510301, China; 2. Marine Biology Research Station at Daya Bay, CAS, Shenzhen 518121, China)  
The Daya Bay, located in the northern South China Sea and covering an area of 600 km~2, is one of the important bays along the southern coast of China. Based on a great deal of observed data and information obtained from the Daya Bay since 1984 when the Daya Bay station was just set up, the environment change in the Daya Bay is studied and its trend is analyzed. The results show that the nutrition status has changed from poor to middle and even eutrophicated level in some parts of the bay. The average N/P ratio has increased from 1/1.5 in 1980s to over 50 at present, and the limiting nutrient factor has changed from N to P. The biological communities have been miniaturized, their biodiversities simplified and the biological resources declined. The phenomenon of stony coral bleaching has appeared, and the dominant species of coral communities have changed. Red tide events have occurred many times in the waters near the Aotou harbor. All of these indicate that the ecosystem of the Daya Bay is undergoing a rapidl deterioration.
【Fund】: 中国科学院知识创新工程重要方向性项目(KZCX3 SW 214);; 广东省自然科学基金项目(032622);; 中国科学院南海海洋研究所知识创新工程前沿领域项目(LYQY200303)
【CateGory Index】: X171.1
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