重盐碱地池塘养殖期水体理化因子变化特点  

The variation of Physical and Chemical Factors in heavy alkali-saline pond during aquacultrue

作　　者：杜兴华[1] 段登选[1] 王志忠[1] 孙栋[1] 林玉霞[1] 陈金萍[1] 张明磊[2] 石玉龙[2] 

机构地区：[1]山东省淡水水产研究所,山东济南250117 [2]上海水产大学,上海200090

出　　处：《河北渔业》2008年第8期16-20,36,共6页

基　　金：山东省科技攻关项目(2005GG320676)资助

摘　　要：对黄河下游利津重盐碱地池塘的水化学进行了分析。结果表明：1.该类水体水型为ClNⅡa,总含盐量899.6~3 336.6 mg/L,在阴离子中,Cl-〉SO24-〉HCO3-＋CO32-,其含量分别为703.52 mg/L、302.83 mg/L和167.82 mg/L。阳离子的含量顺序为K＋＋Na＋〉1/2 Mg2＋〉1/2Ca2＋,其含量分别为479.43mg/L、92.21 mg/L、72.29 mg/L。2.各塘总碱度平均值为2.12~4.29 mmol/L,其组成主要是HCO3-碱度;pH为8.37~8.96,极值范围为8.10~10.39;总硬度含量较高,各塘平均在8.08~14.35 mmol/L,极值范围为7.05~17.20 mmol/L;养鱼池塘的Ca2＋含量大于Mg2＋含量,而养虾池塘Mg2＋含量大于Ca2＋的含量。3.氮的含量较适合浮游植物的生长,而大部分养虾池塘总磷的含量很低,但养鱼池塘总磷含量相对较高。We analysis the water chemistry of heavy saline ponds in Lijin,which lies in downriver area of Huanghe River. The analysis results indicate that： 1. The water type in those ponds is basically ClⅡ^Na, and the total salinity is 899.6~3 336.6 mg/L. For anion, Cl- 〉SO4^2- 〉HCO3^-＋CO3^2- , the concentration of these anions respectively is 703.52 mg/L, 302.83 mg/L and 167.82 mg/L. For cation, K＋ 〉Na＋ 〉1/2Mg2＋ 〉 1/2Ca2＋ , the concentration respectively is 479.43 mg/L, 92.21 mg/L and 72.29 mg/L. 2. The average value of total alkalinity in all ponds is 2.12~4. 29 mmol/L, and its main component is HCO3- alkalinity; pH is 8.37~8.96, and the extremum scope is 8. 10~10. 39; the total hardness is comparatively high, and the average value of all ponds is 8.08~ 14.35 mmol/L, and the extremum scope is 7.05~17.20 mmol/L; the concentration of Ca2＋ is higher than that of Mg2＋ in fish ponds, while in shrimp ponds, the concentration of Mg2＋ is higher than that of Ca2＋. 3. The concentration of N is suitable for the growth of phytoplankton. In most shrimp ponds, the total concentration of P is pretty low, but that in fish ponds is comparatively high.

关 键 词：盐碱地池塘 养殖期 理化因子 

分 类 号：S912[农业科学—水产科学]