黑龙江勤得利湾水质理化特征

Physico-chemical characteristics in Heilongjiang Qindeli bay

20 0 3年 5月、 7月、9月和 1 2月对黑龙江勤得利湾水化学特征进行了调查 ,结果表明 :勤得利湾水质良好 ,透明度变幅在 2 5～ 45cm ,pH值变幅在 7 1 4～ 7 5 2 ,水呈中性。水型属重碳酸盐类 ,钙组Ⅰ型 (CcaⅠ)软水。水中主要营养元素含量 ,总氮含量较高平均为 1 0 30mg/L ,磷酸盐含量较低平均为 0 0 1 7mg/L。离子含量以冬季最高 85 5 2mg/L ,春季最低 48 1 1mg/L。水中离子含量高低次序为HCO-3 >Ca2 +>Cl- >Na+s+K+>Mg2 +。探讨了水体的营养类型和利用。

The Physico-chemical characteristics and Seasonal changes of Qindeli bay were studied from May to December 2003.The results are as follows.Qindeli bay has good water quality,transparency changes 25～45cm,pH value changes 7.14～7.52,and the water type belongs to CⅠca and soft water.The contents of major nutrient elements were high,the contents of TN in water was 1.030 mg/L,and the contents of phosphate was lower(0.017 mg/L).The contents of hydronium were high in winter(85.52 mg/L),and the contents of hydronium was lower in spring(48.11mg/L).The contents of hydronium were HCO- 3> Ca 2+>Cl->Na +s+K+>Mg 2+in water.The water style of nutrient was also discussed in this paper.