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作 者:李贵生[1] 何建国[1] 李桂峰[1] 江静波[1] 莫福 陆永涛 林宁
机构地区:[1]中山大学生命科学学院,广州510275 [2]廉江市龙营围对虾养殖场
出 处:《中山大学学报论丛》1996年第S1期50-57,共8页Supplement to the Journal of Sun Yatsen University
基 金:广东省自然科学基金!940636
摘 要:通过对4口虾塘水体部分理化因子的检测及气候特征的记录,分析了水体理化因子之间的相互作用及气候的影响作用.结果表明,盐度升高时,pH值升高,而氨氮、亚硝酸氮和硫化物则下降;亚硝酸氮升高时硫化物也升高;pH值升高时氨氮含量下降.氨氮和亚硝酸氮的最大值均出现在刮西南风的时候,最小值均出现在刮东风的时候;风力7~8级以上可明显地升高氨氮、亚硝酸氮和硫化物的含量.氨氮、亚硝酸氮和硫化物在阴天和雨天时有升高的趋势.The physical and chemical elements of prawn-farming pond water affects each other and can be affected by climate. When the salinity concentration rises, the pH rises, but the levels of ammonia, nitrite and sulpyuret, drop. The ammonia level drops with pH rising. There are very close relationships between nitrite and sulphuret. The results also show that water temperature, salinity concentration and pH rise and the nitrite level drops when air temperature rises. Water temperature is higher when south wind or east wind blows, but it is lower when north wind blows. The highest values of ammonia and nitrite appear when southwest wind blows, and the lowest values of ammonia and nitrite appear when east wind blows. The concentrations of ammonia, nitrite and sulphuret rise when the wind power is 7~8 scale or above it. There is the tendence of rising concentrations of ammonia, nitrite and sulphuret in cloudy days or rainy days.
分 类 号:G64[文化科学—高等教育学]
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