期刊
CHEMISTRY AND ECOLOGY
卷 28, 期 4, 页码 375-390出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/02757540.2011.650167
关键词
nutrients; monsoons; human activities; coastal ecosystem; Sanya Bay; South China Sea
资金
- National Nature Science Fund [40676091, 40776069]
- Key Projects in the National Science & Technology Pillar Program [2009BAB44B03]
- Chinese Academy of Sciences [KSCX2-SW-132, SQ200913]
- National Key Station in Field Observation Fund
- Science and Technology Program of Guangdong Province [2004B60302004, 2005B60301032]
- Key Laboratory of Global Change and Marine-Atmospheric Chemistry, SOA [GCMAC0906]
- Nature Science Fund of Hainan Province [41022]
Human activities and oceanic influences like mixing and/or upwelling define the hydrochemical and biological characteristics of coastal regions. In Sanya Bay, northern South China Sea, the balance between these two influences on spatial and temporal scales is poorly understood. The influence from human activities was due to discharge from Sanya River, whereas the most important marine influence was related to seasonal changes in hydrodynamics. Spatial differences (p < 0.05) in total nitrogen (TN) and chlorophyll-a (Chl-a) were observed. Seasonal differences were observed for temperature and nutrients. Human activities are the dominant factor influemcing hydrochemistry in the inner bay. This region exhibited the maximum influence of discharge from Saya River as estimated by higher nutrient levels. Oceanic influences like upwelling and mixing caused by monsoons are the dominant factors influencing hydrochemistry in the central and outer bay. Both human activities and oceanic influences play important roles in coastal ecosystems in Sanya Bay. This study has defined these characteristics so that better management policies can be enacted.
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