摘要
根据2017年7月14日、9月1日和9月3日在山东省威海市褚岛北部海域现场测定的数据,对叶绿素Chl-a、化学需氧量CODmn、溶解氧DO和酸碱度p H等海水生化参数的时空变化特征及相关性展开分析。分析结果表明:(1)在3次测量中,7月14日整个测试海域Chl-a和CODmn浓度处于低值,DO和p H处于高值状态,其中6号站点DO达到9.08 mg/L,p H达到8.10;9月1日整个测试海域中Chl-a和CODmn浓度处于高值,其中12号站点叶绿素浓度达到5.04 mg/m3,CODmn达到0.755 mg/L,p H和DO处于低值状态;9月3日的观测值,Chl-a和CODmn数值与7月14日相近,p H和DO数值与9月1日相近;(2)从空间上看,在整个测试海域中,Chl-a、CODmn和p H的高值区有单峰和双峰型;DO的高值区基本是单峰型;(3)从3个航次整体测量数据来看,Chl-a与CODmn、DO和p H相关性不显著;CODmn与DO有显著相关性,但与p H相关性不显著,DO和p H相关性显著,从具体航次测量数据来看,这些生化参数之间的关系展现出复杂性。
According to the field data on the northern waters of the ChuDao Island of Weihai City, Shandong Province, on July 14＇h, September 1＇t and September 3× 2017, this paper analyzes the spatial-temporal variations and correlation of Chlorophyll-a （Chl-a）, Chemical Oxygen Demand （CODmn）, Dissolved Oxygen （DO） and Hydrogen Ion Concentration （pH）. The results show the following facts. （1） In the three groups of measurements, on July 14th, the concentrations of Chl-a and CODmn in the whole sea area were at low levels, DO and pH were at high levels, of which in no. 6 site DO reached 9.08 mg/L and pH was 8.10. On September 1st, the concentration of Chl-a and CODmn in the whole test area was high, the chlorophyll concentration at no. 12 sites reached 5.04 mg/m3 and CODmn reached 0.755 mg/L. The pH and DO were in a low level. In terms of observed values of September 3~, the Chl-a and CODmn values were close to those on July 14＇~, and the pH and DO values were similar to those on September 1^st. （2） From the spatial perspective, the high value areas of Chl-a, CODmn and pH have single peak and bimodal pattern in the whole test sea area; and the high value area of DO was basically unimodal. （3） There was no significant correlation between Chl-a and CODmn, DO and pH. The value of CODmn was significantly correlated with that of DO, but not significantly with pH. There was a significant correlation between DO and pH. The dataset of field observation shows that the relationships between these biochemical parameters were very complex.
作者
邢旭峰
谢仕义
黄妙芬
王忠林
吴振陆
孙忠泳
XING Xu-feng, XIE Shi-yi, HUANG Miao-fen, WANG Zhong-lin, WU Zhen-lu, SUN Zhong-yong(Faculty of Mathematics and Computer Science, Guangdong Ocean University, Zhanjiang 524088, Guangdong Province, Chin)
出处
《海洋技术学报》
2018年第1期54-61,共8页
Journal of Ocean Technology
基金
国家重点研发计划重点专项资助项目(2016YFC1401203)
广东海洋大学科研启动经费资助项目(E16187)
广东海洋大学2017年"创新强校工程"自主创新能力提升项目资助(GDOU2017052501)
关键词
褚岛北部海域
海洋生化参数
时间变化特征
空间分布特征
相关性分析
sea area to the north of the Chudao Island
marine biochemical parameters
characteristics of time change
spatial distribution characteristics
correlation analysis
