【摘要】 2006年9-10月期间调查了分布江苏(苏州市)、浙江(杭州市、绍兴市)、湖北(荆州市)、湖南(岳阳市)和江西(九江市)16个三角帆蚌养殖水体的水温、透明度(SD)、溶氧(DO)、pH、盐度、电导率、SO42-、C l-、CO32-、HCO3-、Ca2+、Mg2+、K++Na+、总碱度、总硬度、总氮(TN)、总磷(TP)、高锰酸钾指数(CODMn)和叶绿素a(Chl-a)。结果表明:所调查的养殖水体的DO和pH均适合三角帆蚌的生长。吴江市(苏州市)、杭州市和绍兴县(绍兴市)养殖水体的透明度相对较高,苏州市养殖水体的盐度和电导率最高。所调查的养殖水体中阴离子均以HCO3-最高,阳离子分别以K++Na+或Ca2+最高。所调查的养殖水体总碱度为24~219 mgCaCO3/L,总硬度为40.93~218 mgCaCO3/L,Ca2+为7~50 mg/L,其中苏州市和九江市养殖水体总碱度、总硬度和Ca2+较高,杭州和绍兴市养殖水体的总碱度和总硬度较低,绍兴市绍兴县养殖水体和诸暨市的部分养殖水体Ca2+较低。所调查的养殖水体氮磷变动范围为:TN为0.52~1.91 mg/L,TP为0.06~0.3 mg/L,TN/TP为4~17,其中杭州市养殖水体TN和TP最高,绍兴诸暨市的水体TN较高。相城区(苏州市)、荆州市、岳阳市养殖水体和苏州市部分养殖水体TN较低。杭州市、绍兴市和荆州市养殖水体的CODMn相对较高,岳阳市养殖水体的Chl-a含量低。在调查的水体中,TN与TP、CODMn正相关;总硬度与总碱度、Ca2+、Mg2+显著正相关。更多还原

【Abstract】 A survey on water quality parameters,including water temperature,secchi depth,dissolved oxygen(DO),pH,salinity,conductivity,SO42-,Cl-,CO32-,HCO3-,Ca2+,Mg2+,Na++K+,alkalinity,hardness,total nitrogen(TN),total phosphorus(TP),chemical oxygen demand(CODMn) and chlorophyll-a(Chl-a),in 16 water bodies for culturing freshwater pearl mussel Hyriopsis cumingii,including ponds, lakes and rivers scattered in Suzhou City(Jiangsu Province),Hangzhou City(Zhejiang Province),Shaoxing City(Zhejiang Province),Jingzhou City(Hubei Province),Yueyang City(Hunan Province) and Jiujiang City(Jiangxi Province) was carried out from September 1 to October 21,2006.The results showed DO and pH in the surveyed waters was suitable for growth of Hyriopsis cumingii.Secchi depth was relatively high in waters of Wujiang City(in Suzhou City),Hangzhou City and Shaoxing County(in Shaoxing City),while salinity and conductivity were high in waters of Suzhou City.HCO3-was highest among the negative ions,while Na++K+,or Ca2+ was the highest positive ions in the surveyed waters.Alkalinity,hardness and Ca2+ varied within 24-219 mg CaCO3/L,41218 mg CaCO3/L and 7-50 mg/L in the surveyed waters.Alkalinity,hardness and Ca2+ were relatively high in waters of Suzhou and Jiujiang City.Alkalinity and hardness were relatively low in waters of Hangzhou and Shaoxing City,and Ca2+ low in the Shaoxing County water(in Shaoxing City) and some waters scattered in Zhuji City(in Shaoxing City).TN and TP in the surveyed waters varied within 0.52-1.91 mg/L,0.06-0.30 mg/L,and TN/TP varied within 4-17,respectively.TN and TP were highest in Hangzhou City waters,and the waters in Zhuji City also had high TN.TN was relatively low in waters of Xiangcheng area(in Suzhou City),Jingzhou and Yueyang City.CODMn was relatively high in waters of Hangzhou,Shaoxing and Jingzhou City.Chl-a was lowest in Yueyang City water among the surveyed waters.Positive correlation was found between TN and TP,and between TN and CODMn,and between hardness and alkalinity,and between hardness and Ca2+,and between hardness and Mg2+ in the surveyed waters.更多还原