ANALYSIS OF Cu, Cd, Co AND Ni IN SURFACE WATER OF THE KUROSHIO AREA IN THE EAST CHINA SEA

Study of 1986 and 1987 heavy metal distribution in surface water of the Kuroshio area in the East China Sea showed regional and slight seasonal variations in distribution and concentration . Heavy metal levels in Taiwan Strait, the sea area north of Taiwan and the continental shelf are higher than those in the main axis of the Kuroshio . Dissolved Cu in summer and winter decreases with the increase of salinity , but dissolved Cd has no obvious change with salinity .     

鸟类乐园——河南省罗山县董寨鸟类自然保护区

<正> 董寨鸟类自然保护区地处豫鄂两省交界的大别山北坡,罗山县最南部,总面积4.68万公顷。保护区内群山连绵起伏,地形复杂多变,地势南高北低,平均坡高15°,海拔从100米至840米,以主峰王坟顶(840米),灵山金顶(827米)为中心形成的两大山体群系构成了保护区的核心。 保护区在气候带上属暖温带向北亚热带过渡地带,具有典型的过渡性气候特征,其特点为:气候温和,雨量充沛,夏无酷署,冬无严寒。全年无霜期227天,年降水量1100—     

松山台电磁场资料及其在永登地震中的反映

介绍了松山电磁台（中法合作项目）布设、仪器状况及近一年来的工作情况，编制了几个处理、分析资料的软件，初步分析了该台自１９９４年１０月至１９９５年１０月的观测结果，并围绕１９９５年７月２２日永登５．８级地震，探讨了该台大地电场观测的映震能力。结果表明，松山台的大地电场及地磁观测资料是比较稳定的，质量是好的．但由于观测时间较短，暂不能作消除干扰的一些数值处理，因此还不能判别出较明显的异常。     

浅层地震勘探震源性状探讨

该文通过某浅层地震勘探工程在不同的场地条件下采用的几种震源方式所得到的资料,探讨震源的性状和使用。     

Evaluation models of insurers’ risk management based on large system theory

The financial supply chain is increasingly recognized as an area offering significant potential for generating bottom-line improvements and creating competitive advantage. Insurers’ appraisal is one of the basic decisions for a company, and the choosing course has always many criterions. Considering the stability of the financial supply chain, the coordination evaluation and fuzzy multi-objective evaluation model of insurers’ risk management are firstly studied in this paper by using large system theory and methods. The corresponding coordination evaluation index model is then established to evaluate, forecast and control the actuality and the future of risk coordination management, and to improve the durative development for a combination pension model. The evaluation standards of numerous insurers are established to constitute a set of vectors. By presenting a dimensional point to each insurer, the optimal or the worst insurer is decided. Finally, the distances of each insurer to the optimal or the worst insurer on the basis of the Euclidean distance are counted, and the insurers’ ordering according to the value of distances is sorted out. The financial supply chain and large system theory and methods are combined to contribute new evaluation models that revise the deficiency of intrinsic model and improve the financial stability.     

台湾海峡海域表观耗氧量之研究

台湾海峡海域1983－1988年多次调查资料表明，该海域夏季表现耗氧量（AOU）变化幅度较大，其分布特征呈近岸、底层高，向上层、外海递减，诸上升流是其主要控制因素。各上升流区AOU与温度、盐度、诸营养盐呈显著相关关系。PO4／AOU与NO3／AOU比值平均分别为0.0058和0.076。上升流海域夏季初始营养盐[PO4,pre和[NO3,pre较低，而再生营养盐高，是现场营养盐的主要部分。有机物质分解耗氧对AOU的贡献比浮游动物等呼吸耗氧更重要。     

利用反射地震和多波束资料研究南海西北部麻坑的结构特征与成因

海底碳封存是解决全球温室效应,提高碳汇的重要手段. 然而,海底碳封存会存在碳泄漏的风险,因此有必要对碳储层结构和海底碳泄漏进行监测. 其中,一种有效的监测手段是海底地震仪（OBS）多波多分量地震探测. 本文介绍了使用OBS探测技术对储层结构和海底地壳内流体的探测实例：主要包括二维、三维台阵OBS试验,使用的方法为走时反演、各向异性分析以及微地震方法. 使用OBS进行多波多分量地震探测有范围广、深度大、信噪比高、大偏移距的优点. 然而,目前二维和三维OBS探测建立的碳储层和碳泄漏模型分辨率还有待提高,可以通过使用密集台阵的方式来提高观测精度,或布设更优化的台阵来获得最佳分辨率. 随着碳中和目标的不断临近,各国碳封存的需求迫在眉睫. 因此,尽快发展OBS海底碳泄漏监测技术,保证碳封存方案的实施是尤为必要的.