| 威海湾营养盐季节变化特征及与环境因子的相关性分析 |
| Seasonal Variation Features of Nutrients and Influenced Environmental Factors in Weihai Bay |
| 投稿时间：2011-11-18 修订日期：2012-05-25 |
| DOI： |
| 中文关键词:营养盐 季节变化特征 威海湾 典型相关分析 |
| 英文关键词:nutrient seasonal variation features Weihai Bay canonical correlation analysis |
| 基金项目: 海洋公益性行业科研专项经费项目(200905019);山东省908专项(SD9080209);山东省908专项山东近海经济生物产卵场、索饵场及其生态环境评价;水生动物营养与饲料“泰山学者岗位” |
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| 中文摘要: |
| 根据2006-2007年威海湾4个航次营养盐的调查资料,分析该海域海水中无机氮(DIN)、磷酸盐(PO43--P)和硅酸盐(SiO32--Si)的季节变化规律及其与环境因子的典型相关性。结果表明,NO3--N是DIN的主要存在形式,比例达50%以上。营养盐季节性变化明显,秋冬季DIN和PO43--P浓度较高,春夏季较低,SiO32--Si的变化则相反。四季DIN和PO43--P浓度均大于浮游植物生长阈值,仅冬季SiO23--Si浓度低于浮游植物生长阈值。冬季浮游植物生长的限制因子是Si,其他季节具有P限制的潜在性。营养盐和环境因子具有较大的典型相关性,其中,盐度、pH和NO3--N、PO43--P、SiO23--Si相关性最大,典型相关系数达到0.979。 |
| 英文摘要: |
| The variation features of nutrients include inorganic nitrogen ( DIN)，phosphate(PO3-4-P )，and silicate(Sio2-3--Si ) in Weihai Bay were analyzed based on the four investigations during 2006一2007. The results showed that the main form of DIN was NO-3 –N with the percentage above of 50%.The seasonal variation of nutrients was significant The concentrations of DIN and PO3-4-P was higher in autumn and winter than that in spring and summer. However, the seasonal variation of Sio2-3--Si was contrary to DIN and PO3-4-P . The concentrations of nutrients in all the seasons were higher than the growth threshold of phytoplankton，except Sio2-3--Si concentration was lower than the growth threshold of phytoplankton in winter. Si was the limiting factor for the growth of phytoplankton in winter ,and P was the potential limiting factor in other seasons. There was a great canonical relationship between nutrients and environmental factors with the maximum coefficient of 0. 979 between salinity，pH and NO-3 –N，PO3-4-P, Sio2-3—Si . |
| 陈玮,吕振波.2012.威海湾营养盐季节变化特征及与环境因子的相关性分析[J].水生态学杂志,33(3):41-45. |
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