有机氯农药在九龙江口红树林区的分布及其动态

The Distribution and Dynamics of Organochlorinated Pesticides in Mangrove Area of Jiulongjiang Estuary,Fujian

主要讨论有机氯农药（ＯＣＰ）在九龙江口红树林区的分布及其动态，结果表明：九龙江口浮宫红树林区水样中的ＯＣＰ浓度各自的变化为０．１３８２～１．１８８０μｇ／Ｌ；全年平均为０．６０１７μｇ／Ｌ．红树林区产品有较高的ＯＣＰ富集。除红树林区弹涂色肝的ＯＣＰ富集系数浮宫的（４３５２）比海沧的（２１５４）较高外，综合来看，其它产品ＯＣＰ富集系数海沧的都比浮宫的高，秋茄植物体内ＯＣＰ含量，以胚轴最高（３３１３～４０８３μｇ／ｋｇ）、根和成熟叶居次，而茎最低，仅４８．６～９６．９μｇ／ｋｇ。红树植物叶的ＯＣＰ含量的月变化中，桐花树以９月最高（６１９．０μｇ／ｋｇ），４月最低（１３５．３μｇ／ｋｇ），秋茄以２月最高（４９０．５μｇ／ｋｇ），１２月最低，仅１２３．７μｇ／ｋｇ。

The paper deals chiefly with the distribution and dynamics organochlorinated pes-ticides(OCP)in mangrove area of Jiulongjiang Estuary,Fujian.The results were as follows:Themonthly changes of OCP concentration in water of mangrove area in Fugong town of Jiulongjiang Es-tuary range from 0.1382 μg/L to 1. 880μg/L; the yearly average was 0. 601 7 μg/L, The OCP en-richment coefficient of the products in mangrove area was highness. Except OCP enrichment coeffi-cient in the liver of Periophthalmus pectinrostris was Fugong town(4352)higher than that of Haicangtown(2154),the other products was OCP of Haicang town higher than that of Fugong town. OCPcointents in plant body of Kandelia candel were highest in hypocotyl(3 31 3～4083 μg/kg),root andmature leaves the second,stem the lowest,48.6～96.9 μg/kg only. Among monthly changes of OCPcontent in the leaves of mangrove plants,Aegiceras corniculatum was highest in September(619. μg/kg),lowest in April(1 35.3 μg/kg),that of Kandelia candel was highest in February(490.5 μg/kg)and lowest in December,123.7μg/kg only.