Characters of the Pco2 and CO2 Flux in the East China Sea in Autumn

Pco2 of air and seawater samples from the East China Sea(ECS) were measured in situ in autumn, 1994,Ocean currents,terrestrial fluviation,biological activities,etc.,Pco2 char-acters in air and seawater were investigated,CO2 flux and its character in the East China Sea are discussed on the basis of the Pco2 profiles of air and seawater,It was clear that the nearshore was the source of CO2;and tht the oulter sea area was the sink of CO2; and that the shelf area of the EXS is a net sink for atmospheric CO2 in autumn.     

断层相互作用的初步讨论

给出了半无限介质中任意倾角的多个已发震矩形断层对邻近任意倾角的潜在活断层共同作用的合应力的解析表达式，从而可以计算震后合应力的调整值，为判断潜在活断层的稳定性提供依据。合应力Ｓｒ中既包括了作用在断层面上的正应力，又包括了断层面上的剪应力，它比单独用一个应力描述应力场更有效。最后，用１９７３年２月６日炉霍地震后的实际震例说明了地震断层错动对周围孕震区的触发作用     

对虾病毒病暴发前期病毒和弧菌相互作用关系

模拟天然继发感染研究对虾病毒病暴发前期病毒和弧菌的关系。结果显示，弧菌先感染再病毒感染组比病毒先感染丙弧菌感染组死亡率高、死亡快、生长慢、免疫功能低下。表明弧菌的潜伏感染对病毒的增殖有利，而病毒的潜伏感染对弧菌的继发感染没有明显的促进作用。说明病毒性流行病的暴发前期可能是由弧菌先感染，使对虾体内环境发生变化而助长病毒感染，其中对虾的免疫力下降是关键。     

没有围墙的实验室

近些年来,人类在如何合理开发利用和有效保护地球方面,面临着一系列全球性或区域性的重大难题。美国前副总统戈尔认为,数字地球为研究和解决这类全球性难题提供了一个“没有围墙的实验室”。科学家们可以带着他们的问题和专业信息与实验方案,在这个旋转而变化的“活地球”中,进     

广西六景泥盆系盖层构造特征

文章根据大量的地质构造资料 ,论述了广西六景泥盆系盖层的构造变形特征 ,分析了NEE向构造和NW向构造的几何性质和运动学意义 ,认为盖层的构造变形是区域构造相互作用的结果。     

点电荷相互作用能与一类二重积分的算法

在柱面坐标系下，点电荷的相互作用能是ｚ和ρ的具有极点的二重积分。此类积分有简单的解析解，但不容易数值计算。Ｍａｔｈｅｍａｔｉｃａ３．０和ＭａｐｌｅＶ不能求解此类积分；Ｇａｕｓｓ－Ｌｅｇｅｎｄｒｅ算法只能获得粗略结果，Ｒｕｎｇｅ－Ｋｕｔａ算法虽能成功地计算，但不能交换积分顺序。     

高氟孔隙地下水地球化学成因:以山西东山调水工程区为例

分析了山西东山调水工程调入区高氟地下水的区域分布规律,并对高氟水形成机制进行了深入研究,发现研究区高氟水的主要水化学特征为HCO-₃和Na+浓度高、pH值高,且多为HCO₃-Na型水。认为该区高氟水形成的主导性地球化学过程包括含氟矿物溶解、地下水中OH-与氟代羟基云母矿物的离子交换等。另外,排泄区的蒸发浓缩过程和含氟工业废水排放也是研究区部分地区出现高氟水的重要因素。      

基于断层相互作用的地震活动有限元模型

基于断层相互作用，初步建立了西南地区有限元动力学模型，讨论了由于地震发生产生的应力变化对西南地区整个系统的应力调整情况。初步结果表明，许多强震均发生在应力增强区。因此，本模型对判断未来强震危险区有一定的意义。     

城市扩张驱动下植被净第一性生产力动态模拟研究——以广东省为例

城市间相互作用对城市扩张时空演变及其植被碳循环效应具有重要影响。本文将城市相互作用因子引入到元胞自动机(CA)的城市扩张模拟中,使用极限学习机(ELM)来自动获取CA的转换规则,并提出了ELM-CA模型;结合Biome-BGC模型,以广东省为例,对未来城市扩张及其植被净第一性生产力(NPP)效应进行耦合研究。结果表明:ELM-CA模型无需人工确定各变量权重大小,在不同类型变量的参数获取方面具有优势。通过嵌入城市间相互作用,ELM-CA模型能较好地模拟广东省城市用地扩张过程和格局。另外,广东省城市用地扩张对植被NPP具有重要影响,主要表现为城市用地的增加显著地降低植被NPP。按2000-2005年间城市扩张趋势,到2020年,由城市用地扩张导致的植被NPP降低约占广东省植被NPP的1.79%。引导城市合理扩张,对于维持生态系统碳平衡、促进社会经济的可持续发展具有重要意义。     

Gold and tin of fluid-magmatic systems： causes of combination-separation of concentration elements

The aim of the investigation is to reveal possible causes of isolation and co-occurrence of the economically significant concentrations of gold and tin. Comparative analysis of the different-rank factors that influenced migration and concentration of these elements show that different geochemical properties of Au and Sn are responsible for isolation of their big concentrations giving rise to independent metallogenic provinces, zones, and ore nodes. These differences resulted in individualization of the element migration ways to the level of ore concentration within the fluid-magmatic columns. Three main factors influenced the Au and Sn migration activity: different patterns of metal connection with the melt structure, different relation with oxygen, and different relation with other strong oxidizers. By the moment when ore-bearing fluid became isolated from magmas, the metallogenic signature of the melts, contrasting in redox-potential, had already been defined that was confirmed by the fact that tin ores associate predominantly with the granitoids of ilmenite series and gold ores with those of magnetite series. The fluid-magmatic systemswith an intermediate degree of the melt reduction-oxidation may be considered the potential producers of the combined metal concentrations. In these cases, the combined concentrating of tin and gold is plagued by an opposite direction of the oxidation-reduction reactions when their most common minerals are formed: the main migration form of Sn+2 must be oxidized (with cassiterite portioning) , and the forms of Au+ or Au+3 must be reduced (with native gold portioning) . Probably, because of this the combined tin and gold concentrations are dominated by one of the metals with a tendency of accumulation in different-stage mineral complexes.     

边缘撕裂--一种致裂致震机制

明确提出两个板块或地块之间相互作用（主要是错动）中存在一种致裂致震机制－边缘撕裂，并以中国云南境内的红河断裂和美国加州的圣安德列斯两侧地块的边缘撕裂现象为例作了具体阐述。     

地震动力作用下土-地铁隧道模型分析

针对地铁建设中典型的马蹄形断面隧道建立比例尺为1∶20的分析模型,并采用数值分析方法研究马蹄形隧道处于单一土层及工程所处区域典型的成层土体中时的动力响应.分析结果表明,在单一土层中由于土体的约束作用,结构产生的位移以整体沉降为主,在成层土体中除产生一定的整体变形外还伴随一定的扭转变形.在两种地层情况下马蹄形地铁隧道在地震动力作用下的动力加速度响应、竖向位移均在拱顶处产生最大值,其中在单一土层中的加速度响应最大值为结构中部加速度的2.29倍.结构在顶部和侧板处所产生的动应力响应值也较大.研究表明,地震动力荷载作用下顶板、侧板均为受力较大部位,在设计和施工中应予以充分重视.     

断层相互作用的模拟研究

以库仑破裂应力变化计算为基础，研究断层的相互作用。从震源断层和投影断层两个角度出发，研究5种地震断层模型分别描述地震断层和投影断层时库仑破裂应力变化的分布特征，分析震源断层以及投影断层的不同滑动机制对库仑破裂应力变化分布的影响。分析发现，断层的相互作用与断层的滑动机制关系密切；走滑断层还与其左右旋有一定关系；除斜滑断层外，其他断层之间的相互作用呈现一定的对称关系。     

Distribution and generic composition of culturable marine actinomycetes from the sediments of Indian continental slope of Bay of Bengal

Actinomycetes population from continental slope sediment of the Bay of Bengal was studied. Samples were collected during two voyages of FORV Sagar Sampada in 2004 （May-June） and 2005 （July） respectively from 11 transects （each transect had ca. 200 m, 500 m, and 1 000 m depth stations）. The physicochemical parameters of overlying water, and sediment samples were also recorded. The actinomycete population ranged from 5.17 to 51.94 CFU/g dry sediment weight and 9.38 to 45.22 CFU/g dry sediment weight during the two cruises respectively. No actinomycete colony was isolated from stations in 1 000 m depth. Two-way analysis of variance showed significant variation among stations （ANOVA two-way, P〈0.05）, but no significance was found between the two cruises （ANOVA two-way, P〈0.05）. Populations in stations in 500 m depth in both cruises were higher than that of 200 m depth stations with statistically insignificant difference （ANOVA two-way, P〉0.05）. Three actinomycetes genera were identified. Streptomyces was found to be the dominating one in both the cruises, followed by Micromonospora, and Actinomyces. The spore of Streptomyces isolates showed the abundance in spiral spore chain. Spore surface was smooth. Multiple regression analysis revealed that the influencing physico-chemical factors were sediment pH, sediment temperature, TOC, porosity, salinity, and pressure. The media used in the present study was prepared with seawater. Thus, they may represent an autochthonous marine flora and deny the theory of land runoff carriage into the sea for adaptation to the salinity of the seawater and sediments.     

Reconstruction of protoliths of metamorphic rocks and tectonic setting of Wolegen Group

Parametamorphic rocks from Arong County in southeastern Inner Mongolia- Daxinganling district are regarded as Proterozoic in age, belonging to the Wolegen Group and composed of volcanoclastic and sand- stone in origin, and have been disputed in tectonic setting. Because of the stability in metamorphism, the rare earth elements indicate the features of their protoliths. The authors integrated the petrologic methods with the geochemical parameters which include ЕREE, ЕLREE/NHREE, δCe, δEu, La/Yb, Sm/Nd, Th/Sc and the standard values of chondrite. The results show that the protoliths of Wolengen Group may be a group of volcanoclastic and continental margin clastic rocks, and their tectonic setting is the continent island arc.     

蒙皂石水体系双电层结构特征──颗粒之间的相互作用

本文从颗粒之间相互作用能的角度研究国内五个典型蒙皂石水体系的平板双电层结构特征，探讨了电解质（浓度、电价）对相互作用能的影响，发现最大相互作用能具有最佳电解质浓度和最佳作用距离，同时也对粒度变化及端面电荷的变化与相互作用能之间关系进行了讨论。最后，提出蒙皂石颗粒相互作用的模式，探讨了颗粒的分散－絮凝作用。     

川北若尔盖地块的存在及其在汶川地震中的作用不应忽视

提出一种见解:即如国内有的学者指出的,在龙门山之西,鲜水河之东存在一个刚硬地块——若尔盖地块。而正是川滇地块与若尔盖地块以及四川盆地等地块的相互运动和作用才引发了汶川地震。由此,还提出对这几个地块今后的动态和形变监测应予重视的建议。     

极地平流层位势高度变化与中国冬季气温的关系

平流层异常对于对流层的影响研究,尤其是将平流层的异常信号加入中长期天气预报已成为近年来的研究热点。首先利用NCEP/NCAR再分析资料和国家气候中心提供的160站气温资料,采用SVD方法深入分析平流层位势高度场与中国冬季气温的关系。结果表明,极涡与中国东北地区温度有着非常密切的联系。即当中高纬地区位势高度场减弱时(极涡增强),东北地区的温度上升;中高纬地区位势高度场增强时(极涡减弱),东北地区的温度下降。进一步通过挑选出的6个东北亚型强极涡年,6个北美型强极涡年和8个弱极涡年,分别对冬季位势高度场和温度场进行合成分析、小波分析和交叉谱分析。结果发现,东北亚型强极涡和中国东北地区冬季气温的关系最为密切,平流层关键区位势高度场和东北地区地面温度场都有着50天左右的振荡周期,并且关键区位势高度场的季节内振荡有着超前于温度场的特征;北美型强极涡和东北地区温度的联系较小;弱极涡与东北地区温度的关系也不太明显。     

Analysis of Social Integration Models of Tourism Labor Migrants——A Case Study of Jiuhua Mountain of Anhui Province,China

The grounded theory of qualitative methods was applied to researching the social integration of tourism labor migrants in the Jiuhua Mountain of Anhui Province, China. The research was conducted based on the in-depth interviewing of 15 samples, open-consultation and the analysis of secondhand data. The integration models of tourism labor migrants in the Jiuhua Mountain were formed through four processes including theoretic sampling, coding-analysis, cross-tabulation and contextualization. The result shows that modes of production and life styles decide self-integration orientation of tourism labor migrants in the Jiuhua Mountain. Cultural differences are fundamental dissimilarity between tourism labor migrants and natives. There are three kinds of integration models including rapid, free and gradually advancing integration. The differences among different types of migrants＇ integration models are remarkable. Taking the working integration as the abscissa and taking the life integration as the coordinate, an ＂S＂ model of integration matrix appears in the gradually advancing integration of intermediate and high administers from the working to the life which should be paid special attention to.