江苏南部沿海养殖池塘水温时空变化规律研究  

Analysis of water temperature of fishing pond in south Jiangsu coast area

作　　者：张志勇[1] 张志伟[1] 张曹进[1] 吴国均[1] 陈玉生[1] 刘海林[1] 

机构地区：[1]江苏省海洋水产研究所,江苏南通226007

出　　处：《海洋通报》2010年第6期674-677,共4页Marine Science Bulletin

基　　金："十一五"国家科技支撑计划(2006BAD09A01);江苏省科技攻关项目(BE2005304)

摘　　要：根据2008年4月至2009年3月逐月的水文实测资料,利用统计方法,详细分析了江苏南部沿海养殖池塘水温变化规律。(1)水温的季节变化分析表明:高温期出现在七月中下旬,最高水温为32℃,30℃以上高温持续15d;低温期出现在一月中下旬,最低水温为0.5℃,2℃以下低温持续15d。(2)池塘水温昼夜变化分析表明:夏季晴朗天气日温差较明显,每天最高温出现在16时前后,最低温出现在上午8时前后,冬季昼夜温差较小,但每日最高温、最低温出现时刻与夏季基本一致,均较最高、最低气温出现时刻滞后2～4h,水位越深,滞后时间越长。(3)水温垂直变化分析表明:不同水位温度月平均日振幅随深度增加而变小,即表层温度变化幅度较大,底层水温更趋于稳定。以上结果对该地区适合养殖品种的选择、养殖池塘的建设、不同季节水位调节等养殖生产具有积极的指导作用。Characteristics of water temperature of fishing pond in south Jiangsu coast area were analysed based on the data measured from April 2008 to March 2009.Seasonal variation of water temperature in this region revealed that the temperature was high when it came to the middle and late of July.The maximum temperature in summer was higher than 32 ℃ and it would last for 15 days above 30 ℃.Otherwise,the temperature was low when it came to the middle and late of January.The minimus temperature in winter is lower than 0.5 ℃,and it would last for 15 days below 2 ℃.It also indicated that the water temperature was the highest when it was at about sixteen o＇clock and the lowest at about eight o＇clock under clear in summer and winnter,which appeared later for 2 to 4 hours compared with air temperature.Daily amplitude of water temperature gradually decreased and phase lagged more obviously with the increase of water depth.Those results may have an active directive for local aquaculture.

关 键 词：江苏南部沿海 养殖池塘 水温 

分 类 号：S914[农业科学—水产科学]