文章摘要
王菲菲,章守宇,林 军.象山港海洋牧场规划区叶绿素a分布特征研究[J].上海海洋大学学报,2013,22(2):266-273
象山港海洋牧场规划区叶绿素a分布特征研究
Study of chlorophyll a distribution in marine ranching planning area of Xiangshan Bay
  
DOI:
中文关键词: 海洋牧场  叶绿素a  势能异常系数  相关性
英文关键词: marine ranching  chlorophyll a  potential energy anomaly parameter (PEAP)  correlation
基金项目:国家公益性行业(农业)科研项目(201003068)
作者单位
王菲菲 上海海洋大学 海洋科学学院 
章守宇 上海海洋大学 海洋科学学院 
林 军 上海海洋大学 海洋科学学院 
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中文摘要:
      为了对象山港海洋牧场规划区初级生产力情况进行了解,并为其牧场建设效果评价提供依据,在2011年的4月、7月和11月对浙江省象山港海洋牧场规划区内22个站点的叶绿素a、水体混合稳定度、水温、水体及沉积物中营养盐含量等生态因子进行了现场观测和实验测定,并进行了相关性分析。结果显示:调查海区叶绿素a分布具有明显的季节变化:4月〖JP3〗(4.62 mg/m3)>7月(3.57 mg/m3)>11月(3.11 mg/m3)。〖JP〗水平分布上,各季节叶绿素a的分布趋势均为由湾底向湾口逐渐降低;垂直分布上,3个月份表、底层叶绿素a浓度差为7月〖JP3〗(3.02 mg/m3)>4月(1.93 mg/m3)>11月(1.61 mg/m3)〖JP〗。与环境因子的相关性分析表明:叶绿素a的分布与浊度、水温、盐度及活性磷酸盐的相关性显著,〖JP3〗3个季度的叶绿素a含量均与势能异常系数(PEAP)负相关。调查海区表层沉积物氮磷〖JP〗营养盐丰富,为此探讨了在研究海域建设人工鱼礁可以降低水体混合稳定度,促进营养盐的再生,并可能促进浮游植物的生长,从而有助于海域初级生产力水平的提高。
英文摘要:
      In order to realize the state of primary productivity in marine ranching planning area of Xiangshan Bay and provide basis for the effect evaluation of marine ranching construction, seasonal investigations of 22 sites in Zhejiang Province were carried out in April, July and November of 2011. Experiment results about ecological factors, such as Chlorophyll a concentration, stability of water, temperature, nutrient contents in water and sediment, were analyzed with correlation analysis method. Results presented an obvious seasonal variation of Chlorophyll a in the study area, for the Chlorophyll a concentrations were 4.62 mg/m3 in April, 3.57 mg/m3 in July and 3.11 mg/m3 in November (April>July>November).The horizontal distribution of Chlorophyll a was gradually reduced from the bottom to the mouth of the bay and in the vertical direction, the Chlorophyll a concentrations were 3.02 mg/m3 in July, 1.93 mg/m3 in April and 1.61 mg/m3 in November (July>April>November). Results also showed Chlorophyll a concentration got remarkably positive correlations with turbidity, water temperature, salinity and active phosphate, while presented a negative correlation with the stability of water. Sediment in this research area was rich in nitrogen and phosphorus nutrients, and it is supposed to reduce PEAP when artificial reefs are reconstructed, to help promote the regeneration of nutrients, which will be conducive to the growth of phytoplankton and the elevation of primary productivity level.
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