摘要
主要根据１９９２～１９９３年调查资料，分析了影响渤海营养状况的主要因子。结果表明：与历史同期调查结果相比，无机氮有所上升，无机磷下降较大，与国内外有关浮游植物对营养盐类的最低需求的适宜浓度相比，除冬季外，其他季节无机氮和无机磷均低于浮游植物所需要的最适浓度值。就Ｎ／Ｐ比值而言，仍低于海水的正常Ｎ／Ｐ比值，无机氮仍为渤海浮游植物生长繁殖的主要限制因子。无机磷除冬季外，也低于其浮游植物生长繁殖的最低浓度的下限，故认为无机磷也起一定的限制作用。
This paper is mainly based on the our country's 1985 'Survey on Bobai SeaMrine Productivity'. Systematic analysis of the results showed that:(1)Nitrite-N, NitrateN, phosphate-p are the main factors affecting the nutrient condition of the Bobai Sea;(2) Thecontent of inorganic nitrogen is tending to increase, but the content of inorganic phosphorus is decreased greatly compared with historical data of the corresponding period;(3) The content inorganic nitrogen and phosphorus are lower than the lowet limit of optimum concentration requiredby phytoplankton (except in winter).(4) The N/P ratio (atomic ratio) is lower than the normalN/P ratio of seawater, the inorganic nitrogen is still the main limiting factor affecting phyto-plankton growth and reproduction.
出处
《海洋水产研究》
CSCD
1996年第1期57-62,共6页
Marine Fisheries Research
基金
国家"八五"攻关专题
关键词
渤海
营养盐
营养状况
Bohai Sea
Nutrient status
Nutrient salt
