南水北调东线工程江苏段管理改革设计

简要介绍江苏现有江水北调工程管理情况，根据《南水北调总体规划》有关建设管理的要求，结合江苏江水北调工程的特点和40年运行经验，提出南水北调东线工程江苏段管理设计和改革的思路，即在管理模式上实现体制创新、机制创新、规则创新，在管理技术上打造计量准确的封闭水道、通讯畅通的信息渠道、水质良好的清水廊道、经济高效的输水通道，为南水北调工程管理奠定良好的技术、法律、经济基础．     

泛华夏大陆群东南缘多岛弧盆系统

从多岛弧盆体系理论研究思路出发，认为中国华南地区在晚元古代至加里东期，应是由泛华夏大陆群东南缘的多岛弧盆体系组成部分。泛华夏大陆群东南缘多岛弧盆系统从东南向西北由渐闽一云开岛弧、闽粤弧后盆地、武夷山岛弧、湘桂弧后盆地、江南岛弧、雪峰山前陆隆起第几部分组成。它是在古太平洋板块与泛华夏大陆群碰撞与缝合过程中，通过弧－弧、弧－陆、陆－陆碰撞，向前陆盆地演变的持续过程中所形成的。     

陇东地区水土流失与地质作用初步分析

甘肃陇东地区是黄河上游水土流失严重区,也是国家重点治理的地区之一.由于特殊的岩土体的存在,加重了这一地区水土流失作用的危害性.通过水土流失现象与地质作用的关系进行偿试性探讨,旨在从中找到防治水土流失的有效措施,开展治理工作.     

中国东西部城市联姻共富的构想

重点讨论了在西部大开发中,西部地区应抓住历史机遇,大力推动“增长极”－城市的发展,完善城市体系,不断增强城市的辐射推动能力,以促进和带动区域经济的快速发展,其中东西部城市联姻、携手合作、东西共富应视为发展和开发西部战略的重要内容,并提出了“轴线战略”、“双边战略”、优势互补、联姻共富的构想。     

鄂西—渝东区石炭系油气成藏模式及富集规律

从圈闭形成与演化的角度探讨油气运移和圈闭形成的配置关系,从而进一步研究油气的成藏模式与富集规律。认为：鄂西－渝东区石炭系由于基底结构的差异性和构造运动的多期性,形成了4种基本的圈闭类型;后期构造的改造和油气的多期运聚,形成了3种不同类型的成藏模式,提出了有利的储层发育区和继承性的大型古隆地区,是建筑大型气田的重要领域。     

儒学与社会结构:东亚社会中的汉族与多民族社会中的汉族——人类学学者访谈录之八

同受儒家传统文化影响的东亚社会 ,在社会结构上有很大的不同。不同的社会对于儒学的取舍和吸收的重点不尽相同 ,日本突出的是集团的概念 ,而中国更为突出家族主义 ,在多元一体格局中 ,汉族是凝聚的核心。西方很多社会人类学的理论未必一定适合东亚社会 ,与同质化、一体化、一元化相比 ,人类学更强调地方化、本土化、异质化     

云南高黎贡山东白眉长臂猿鸣声声谱研究

选取在云南高黎贡山赧亢、板场和保山市隆阳区太保公园中录制的东白眉长臂猿3组鸣声,用cool edie pro 2.0软件进行原始数据文件处理,再通过Raven pro 1.4软件进行声谱分析,得到图形化文件.据声谱分析结果,东白眉长臂猿二重唱中,雄性的鸣叫序列包括开始音节、重复音节和调节音节;调节音节根据第二个音节的频率变化分为强调音节和弱调音节.雌性的鸣唱序列分为重复音节和激动鸣叫,其激动鸣叫又可分为成功的激动鸣叫和失败的激动鸣叫.比较东白眉长臂猿与东、西黑冠长臂猿的鸣声,发现雌性东白眉长臂猿能够发出黑冠长臂猿雌性个体没有的重复音节.此外,雌性东白眉长臂猿失败的激动鸣叫的出现频率非常高,在一次完整的二重唱中都会存在雌性东白眉长臂猿失败的激动鸣叫,而东黑冠长臂猿的二重唱中没有.     

辽河坳陷东部凹陷沙三段根缘气成藏条件与分布预测

对辽河东部凹陷储层和烃源岩等成藏条件进行系统研究,通过对东部凹陷多口钻井沙三段致密砂岩底部含气层段进行厚度统计,并结合成藏条件分析,对根缘气藏发育有利区进行了预测.研究结果表明:沙三段具有根缘气藏发育的基本地质条件:沙三段晚期沉积环境,以及后期成岩演化作用,使沙三段45.1％的砂岩储层孔隙度≤13％,25.5％的渗透率≤1.5×10-3um2,形成较大规模的致密砂岩发育带,成为根缘气储层发育的主体:沙三段烃源岩干酪根类型以利于生气的ⅡB型和Ⅲ型为主,有机质丰度高,且已进入大规模生气阶段,为根缘气藏的形成提供了有力气源保障.由于运聚机理与常规储层气不同,根缘气具有致密砂岩底部含气特点,在气测曲线形态上形成下部异常的特征.凹陷北部茨榆坨一牛居地区和南部黄金带一大平房地区为根缘气藏发育最有利地区.     

Occupancy patterns of Megascops asio in urban parks of New York City and southern Westchester County,NY, USA

Eastern screech owls (Megascops asio) exist in a number of urban parks in New York City (NYC) and Westchester County, NY. To investigate the effects of intense urbanization on this species, we performed call-broadcast surveys in 16 parks in NYC and Westchester. Occupancy and detection were modelled as functions of eight geographic variables and the presence of barred (Strix varia) and great horned (Bubo virgineanus) owls was noted. Detection was lower in parks that had larger owls. Percent impervious cover and percent forest cover of buffer zones were the most important predictors of occupancy. Screech owls can persist in parks in urbanized areas, but long-term persistence appears to be limited by high levels of urbanization (>50–60% impervious cover), even around otherwise suitable parks, probably because recolonization of extirpated sites in these areas is unlikely. Hence, characteristics of the urban matrix around parks were strong determinants of occupancy by eastern screech owls in these parks.     

An experimental study of phase transformations in olivine under pressure and temperature conditions corresponding to the mantle transition zone

High-pressure polymorphs of olivine (wadsleyite and ringwoodite) are major minerals in the mantle transition zone (MTZ).Phase transformations in olivine are important for a series of geodynamic problems such as the mineralogical and evolutionary history of the mantle,mantle convection patterns,and deep focus earthquakes in subduction zones.In this study,we examine phase transformations in olivine with two compositions,namely Mg 2 SiO 4 (Fo 100) and (Mg 0.9 Fe 0.1) 2 SiO 4 (Fo 90),at pressures between 14.1 and 20 GPa and a constant temperature of 1400°C,using the newly installed multi-anvil system at the Laboratory for Studies of the Earth’s Deep Interior (SEDI),China University of Geosciences (Wuhan).At 14.1 GPa,Fo 90 transformed completely into the wadsleyite structure (β),while Fo 100 remained as olivine (α).Between 14.8 and 15.6 GPa,both Fo 100 and Fo 90 transformed into the wadsleyite structure.Wadsleyite crystals were identified by two characteristic Raman peaks between 722 and 723 and 917 and 919 cm 1.They exhibit a bimodal grain size distribution:large-crystals with average grain sizes greater than 100 μm and microcrystals less than 10 μm.The population of microcrystals increased with pressure,apparently due to the increase in over-pressure (the difference between the experimental pressure condition and the equilibrium transformation pressure at 1400°C),which promotes nucleation and retards grain growth.All run charges contained large numbers of wadsleyite microcrystals,because of the low activation energy of the nucleation process.The experimentally observed microstructure may shed light on the morphology of wadsleyite observed in shocked meteorites.At 19.5 GPa,wadsleyite coexisted with ringwoodite (γ) in Fo 100,but was absent in Fo 90.At 20 GPa,both samples transformed completely into ringwoodite,which was characterized by the 798 and 840 cm 1 Raman lines.Ringwoodite crystals are euhedral grains (average grain size 10-20 μm),with well-developed triple junctions.The complex upper mantle structure in eastern China determined from seismological studies cannot be explained by the simple transformation sequence of the olivine system alone.Phase transformations in other pyroxene-normative components (including pyroxenes and garnets) and the interaction of these components with olivine may be responsible for the complex structure.High-pressure and high-temperature experimental studies on complex systems (e.g.olivine-pyroxene),combined with data from geophysical exploration,may help in establishing a more realistic geological-petrological model for eastern China and further our understanding of the possible physical mechanisms that are responsible for the complex structure.Such studies will have profound implications for understanding the dynamic processes in the deep Earth interior.