中国渤海湾营养盐的时空变化及影响因素。
Temporal and spatial variations and impact factors of nutrients in Bohai Bay, China.
机构信息
CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; Hebei Joint Laboratory of Coastal Ecology and Environment, Institute of Geographical Sciences, Hebei Academy of Sciences, Shijiazhuang 050011, PR China; Hebei Engineering Research Center for Geographic Information Application, Institute of Geographical Sciences, Hebei Academy of Sciences, Shijiazhuang 050011, PR China.
CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, PR China.
出版信息
Mar Pollut Bull. 2019 Mar;140:549-562. doi: 10.1016/j.marpolbul.2019.02.011. Epub 2019 Feb 13.
The temporal and spatial distributions of dissolved inorganic nitrogen (DIN), dissolved inorganic phosphorus (DIP), and dissolved silicate (DSi), and their long-term changes were investigated in Bohai Bay (BHB) in spring, summer, and autumn (2013-2014). The high DIN values were consistently distributed in the western inshore waters, mainly determined by terrestrial factors, e.g., riverine input, while DIP and DSi were mostly distributed in the southern coastal waters, the central BHB, or near the sea port Caofeidian in northern BHB, largely related to non-terrestrial factors, e.g., sediment release. Based on the nutrient distribution, BHB could be partitioned into western and eastern parts, with -15 m depth as the separation. The long-term variations of nutrients since 2000 showed an increase in DIN and decreases in DIP and DSi. Relatively slow changes in DIN and DIP and a rapid decrease in DSi were exhibited in summer, which was associated with precipitation and sediment release.
本研究于 2013-2014 年调查了渤海湾（BHB）春、夏、秋三季溶解无机氮（DIN）、溶解无机磷（DIP）和溶解硅酸盐（DSi）的时空分布及其长期变化。高 DIN 值持续分布在西部近岸水域，主要受陆地因素（如河流输入）影响，而 DIP 和 DSi 则主要分布在南部沿海水域、BHB 中部或北部曹妃甸海域附近，主要与非陆地因素（如沉积物释放）有关。基于营养盐分布，BHB 可分为西部和东部两部分，以-15 m 深度为界。自 2000 年以来，DIN 呈增加趋势，DIP 和 DSi 呈减少趋势。夏季 DIN 和 DIP 变化相对缓慢，DSi 迅速减少，这与降水和沉积物释放有关。
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