长江口南支重金属分布研究

对长江口南支采集的水样、悬沙和表层沉积物中的重金属含量进行了分析。结果表明，悬浮物中重金属含量高于表层沉积物，且2者远高于水相中重金属含量。大多数重金属元素间都有良好的相关性。水相中重金属含量由内向外呈轻微的浓度变化；悬浮物中重金属含量逐渐降低；表层沉积物中重金属含量向长江口外有降低趋势，介在长江口门处出现高浓度。河口重金属的分布受到离子交换、吸附、解吸、释释以及水动力等诸多因素的影响。     

黄河水中脯氨酸对Pb(Ⅱ)与表层沉积物相互作用的影响

研究了黄河干流内蒙古清水河段黄河水中表层沉积物与铅（Ⅱ）相互作用以及脯氨酸对其的影响，得出了离子交换率E％－pH关系曲线，该曲线的突跃范围及最大离子交换率E％。结果表明：在我们研究的范围内，脯氨酸深度增加，离子交换率E％增大，并且在pH为0－10的范围内，随着pH值增大，离子交换率E％增大；交换剂为转化沙时的离子交换率E％比未转化沙大。     

沉积物中磷负荷及其释放对水质的影响

以华东师范大学校河为研究对象，通过野调研与室内模拟实验相结合，研究了校河沉积物中磷负荷量，释放量与释放速度以及温度和水体扰动对其影响，并探讨了沉积物中磷释放对校河水质的影响，为校河的富营养化防治提供科学依据。     

三峡库区燃煤,土壤和水库底泥中含汞量分布特征

详细研究了长江三峡库区燃煤，土壤和沉积物中汞的分布特征，以及湖泊沉积物中不同形态汞的含量，探讨了水库汞污染加重原因。     

气相色谱法测定黄河底泥中多氯联苯及有机氯农药

对黄河底泥样品中多氯联苯及有机氯农药，经索氏提取法处理后，用气相色谱法进行了测定，结果表明：（1）本方法的最低检出限为0.05-0.5ug/kg，达到了微量分析的要求。（2）采集的黄河底泥样品中，多氯联苯及有机氯农药污染较轻。（3）加标回收实验中，多氯联苯的回收率为68．8％－107％,有机氯农药的回收率为40．8％－81．1％。     

Effect of Weekend Road Traffic on the Use of Space by Raptors

Abstract:  The traffic load near large cities may show dramatic cyclical changes induced by weekend tourism, and this could induce cyclical changes in the activity patterns of wildlife. We studied a 19-km-long section of a road that crossed a high-use raptor area near a large city in Spain. We observed 18 raptor species along this segment of the road, including some threatened species, such as the Spanish Imperial Eagle ( Aquila adalberti ). The number of cars increased dramatically on Saturdays and Sundays, so we assessed the effect of varying traffic loads on raptor behavior by recording all birds of prey as close or distant to the road during working days and weekend days. On weekends, the occurrence of Spanish Imperial Eagles and vultures decreased near the road. The occurrence of other species did not change between working days and weekend days. The activity decrease on weekends by Imperial Eagles and other large raptors suggests that there are weekly cycles in raptor activity. Weekly cycles in wildlife caused by human activity are a source of concern in conservation biology.     

底泥对河流的二次污染浅析

根据底冲中污染物质累积和释放过程和底泥对河流二次污染的机理,运用适用的模式和苏州河的实测资料,可得到二次污染ＢＯＤ和ＣＯＤ的年释放量,以及增加上覆河上的ＢＯＤ和ＣＯＤ浓度。由此认为,对于底泥污染严重的河流,疏浚是必不可少的,其目的在于清除或隔绝黑富集层上覆河上的二次污染。     

Distributions, cycling and recovery of amino acids in estuarine waters and sediments

Acid hydrolysis of estuarine water samples for the determination of amino acids (AAs) was tested and found to be effective at high (250 μM) nitrate concentrations when the anti-oxidant, ascorbic acid, was added to the samples. Hydrolysable AA concentrations were then determined in surface sediments collected from low and high salinity regions of the Tamar Estuary (UK) during winter 2003 and 2004, and in overlying water when simulated resuspension of sediment particles was performed. Concentrations of AAs in sediment samples comprised <50% of particulate nitrogen, fitting the paradigm that most sedimentary nitrogen is preserved within an organic matrix. When sediment samples were resuspended in overlying water (salinity 17.5), the rapid, measured increase in dissolved AA concentrations almost equalled the reported nitrate concentration in the lower estuary, with the subsequent decrease in the total dissolved AA levels suggested that bacterial uptake was occurring. Our data concur with previous studies on nitrogen desorption from sediments and suggest that an understanding of organic nitrogen cycling will be an important aspect of future effective estuarine management.     

污水海洋处置工程多喷口浮射流近区稀释扩散规律研究

结合上海市污水治理二期工程稀释扩散物理模型试验，首次通过量纲分析的方法，对上升管上布置多个喷口时污水的近区稀释扩散规律进行了研究，得出了上升管布置不同喷口个数时的近区稀释度计算公式，所得公式具有一定的适用性，这对于我国较浅水域扩散器的设计具有重要的指导意义。