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报道了 2 0 0 1年 1- 12月杭州湾畔金山漕泾地区用于水产养殖的河口沿岸水化学状况 :总含盐量 (12 .2 4± 1.92 )g/L ,碱度 (2 .12± 0 .2 7)mmol/L ,pH值为 7.99± 0 .11,阴阳离子中含量最高者分别为Cl-(6 .6 4± 1.0 4)g/L与Na+ +K+ (3.76± 0 .6 0 )g/L ,属典型河口区水质特点 ,系海水水质类型 (ClNaⅢ)。常规水质指标如下 :Nt为 (1.32± 0 .44 )mg/L ,其中NH3 Nt占 19.7%,NO-3 N占 78.8%,NO-2 N占 1.6 %,活性磷PO3 -4 P含量为 (2 .0 4± 1.5 7) μg/L ,氮磷比 (N/P)为 6 47(原子比 ) ;化学需氧量 (CODMn)为 (6 .89± 1.76 )mg/L ;五日生化需氧量(BOD5)为 (2 .5 6± 0 .5 2 )mg/L ;溶解氧 (DO)为 (7.95± 0 .5 6 )mg/L。
The water chemistry of the estuarine waters used for aquaculture in Caojing, Jinshan, Hangzhou Bay, January 12, 2001 was reported: total salt content (12.24 ± 1.92) g / L, alkalinity (2.12 ± 0.27) mmol / L, and the pH was 7.99 ± 0.11. Cl- (6.64 ± 1.04) g / L and Na + + K + (3.76 ± 0. 6 0) g / L, is a typical estuary water quality characteristics, Department of seawater quality (ClNa Ⅲ). Conventional water quality indicators were as follows: Nt was (1.32 ± 0.44) mg / L, of which NH3 Nt accounted for 19.7%, NO-3 N accounted for 78.8%, NO-2 N accounted for 1.6% 2 .0 4 ± 1.5 7) μg / L, the N / P ratio was 6 47 (atom ratio) and the CODMn was (6 .89 ± 1.76) mg / L. The oxygen demand (BOD5) was (2.56 ± 0.52) mg / L and the dissolved oxygen (DO) was (7.95 ± 0.56) mg / L.