摘要
在1981、1991(1990)和1998年3次海洋环境调查的基础上 ,通过相同水质要素时空比较分析 ,江苏海域的溶解氧、磷酸盐、硝酸盐和亚硝酸盐这4种主要海水化学因子具有时空变化特征 ,其高值区主要分布在灌河口、扁担港口、射阳河口、川东港和长江北支口北侧 ,且河口、近岸值高 ,向海含量渐小 ,不同年份、季节也有变化。沿海水化学性质主要受陆源排污 (农田化肥等 )影响 ,主要是入海河流携带污染物、海洋生物作用和本海域水体运动特征的影响 ,此外 ,溶解氧变化还受到水温变化的影响。
Based on the data from 3 times water environmental survey along Jiangsu seashore in 1981,1991 and 1998 respectively, and by space-time data analysis, 4 sea water elements such as Dissolved Oxygen, Phosphate, Nitrate and Nitrite characterized space-time changes. Their peak-value located at estuaries along the Jiangsu coast, and their values decrease on the sea. The water Qualities in the Jiangsu seashore are affected by land source pollute (especially farming land ) ,and by common actions of river runoff, tidal, littoral currents and halobios activities.
出处
《海洋科学》
CAS
CSCD
北大核心
2003年第2期8-12,F003,共6页
Marine Sciences
