大陆碰撞与成山过程──以印度河上游地区为例

本文讨论了印度河上游地区的高山形成和演化。由于印度板块的推进并和欧亚板块相碰撞形成了喀喇昆仑山和西喜马拉雅山。讨论了在山地上升的三个时期即中新世、上新世末更新世初和第四纪中期以来山地构造、沉积和地貌的基本状况。并分析了在高山发展过程中喀喇昆仑和西喜马拉雅的相似性和差异性。     

黄河之名始于汉代

黄河是中国人民的母亲河,是孕育中华文明的摇篮。但是,多年以来,学者们对黄河的研究多集中于黄河的泥沙情况、河道变迁和水利变化等问题,而对黄河名称的由来论述甚少。黄河之所以得名与其含沙量的多少是有密切联系的。通过对《汉书》、《后汉书》、《魏书》、《水经注》等相关史籍的考证可以看出,黄河这一名称起源于西汉初期,而在魏晋南北朝时期已经成为十分常见的称呼。     

屈原诗学与湖湘文化

在诗学领域，把长江文明引入中华文明发展的总进程中的首功是屈原。屈原丰富、改造、拓展了中华民族精神结构中诗的神经。屈原对江南湖湘间的诗性文明的开拓，可以从三个方面理解：“重华情结”与“求女异行”：追求长江文明与黄河文明的融合梦；“九歌”世界：开拓民间智慧进入文人传统的巨大潜能；南音真传：地域文化对于审美形态的意义。     

汾河水污染分析与防治措施

对山西省汾河水质污染物的超标倍数进行了统计分析，对比研究了20世纪80年代与90年代汾河干流主要地（市）河段废污水量所占比重，对比分析了不同年代随废水排入河道的有毒有害物质量的变化情况，提出了防治水污染的措施。     

建国以来塔里木河流域生态环境研究进展与展望

建国以来，塔里木河流域生态环境研究的内容不断深入，研究的技术和手段也不断地改进。本对这时期塔里木河流域生态环境的研究进展、研究方法和技术作了综述。在此基础上总结了历来的研究经验和存在的问题，并对塔里木河流域生态环境的发展趋势做了展望。     

双曲拱桥的加固、拓宽改造技术研究

介绍了益阳资江一桥原状及有关情况,分析了其病害缘由,提出了拓宽改造方案,计算分析了桥梁承载能力,并通过全桥静载试验检测评定拓宽改造方案的安全性.     

深圳市大沙河底泥毒物污染特征及对策探讨

运用生物毒性监测方法，对深圳市南山区大沙河底泥毒物污染特征进行了分析，结果表明，大沙河底泥不同程度的受到了毒物污染，底泥毒物污染趋势与水体毒物污染趋势基本一致；还结合化学监测方法，分析了大沙河底泥毒物主要为有机毒物．此外，就大沙河底泥毒物的治理方法提出了自己的见解．     

历史时期人口迁移与淮北地区社会变迁

由于战乱和灾荒等原因,历史时期淮北地区既是一个民众移出的地区,又是一个大规模民众移入的地区。历史时期的人口迁移严重阻碍了淮北地区的经济社会发展进程,加速了该地区的社会变迁,主要体现在：一是引发资源抢夺,形成流民,激化社会矛盾,破坏了社会稳定;二是导致财富减少以及生产方式、经营理念、生活方式等落后,改变了原有的经济结构;三是促使民风、民俗趋于恶化,方言出现新的特征。在淮北地区的社会变迁过程中,移民起到了较大的消极作用,是该地区经济社会衰落的重要因素之一。     

泗河水体氮磷空间分布及富营养化评价

分析了泗河水体中TN和TP的空间变化规律,利用对数型幂函数普适指数公式对其水体营养状态进行了评价.结果表明,泗河水体中TN的平均质量浓度为6.22mg·L-1(NO-3-N占34.20%),TP为0.33mg·L-1.泗河水体中氮、磷空间分布特征明显,TN和NO-3-N的空间分布比较一致,均由上游开始先升高后降低的趋势,而NH+4-N稍有不同,无明显的变化趋势;TP和SRP含量由上游开始先降低后升高,分别至泗河大桥断面(1-8#)和金口坝断面(1-9#)达到最高值,然后又逐渐降低.总体来看,泗河处于"富"营养状态(EI=48.757).其中,3个断面(15.80%)处于"中"营养状态,13个断面(68.42%)处于"富"营养状态,3个断面(15.80%)处于"重富"营养状态.综合分析表明,工业废水和生活污水的点源污染是泗河污染的主要来源,畜禽养殖和农业面源污染应引起高度重视.     

Monitoring lake changes of Qinghai-Tibetan Plateau over the past30 years using satellite remote sensing data

During the years 2006–2009,lakes in the Qinghai-Tibetan Plateau(QTP)were investigated using satellite remote sensing strategies.We report the results of this investigation as well as follow-up research and expanded work.For the investigation,we mainly focused on lakes whose areas are more than 1 km2.The remote sensing data that we used included 408 scenes of CBERS CCD images and 5 scenes of Landsat ETM?images in Qinghai Province and Tibet Autonomous Region.All these data were acquired around years 2005–2006.Besides remote sensing images,we also collected 1,259 topographic maps.Numbers and areas of lakes were analyzed statistically,which were then compared with those coming from the first lake investigation(implemented between the1960s and 1980s).According to our investigation,up to and around year 2005–2006,the total number of lakes in the QTP was 1,055(222 in Qinghai and 833 in Tibet),accounting for more than 30%of that of China.Thirty newborn lakes with area[1 km2were found,and 5 dead lakes with initial area[1 km2were also found.Among those 13 big lakes([500 km2),Yamzhog Yumco had seriously shrunk,and it has continued to shrink in recent years;Qinghai Lake had shrunk during the period,but some new researches indicated that it has been expanding since the year 2004;Siling Co,Nam Co,and Chibuzhang Co had expanded in the period.We divided the newborn lakes into six categories according to their forming reasons,including river expansion,wetland conversion,etc.The changes of natural conditions led to the death of four lakes,and human exploitation was the main reason for the death of Dalianhai Lake in Qinghai.We picked out three regions which were sensitive to the change of climate and ecological environment:Nagqu Region,Kekexili Region,and the source area of the Yellow River(SAYR).Lakes in both Nagqu and Kekexili have been expanded;meanwhile,most lakes in the SAYR have obviously been shrunk.These regional patterns of lake changes were highly related to variations of temperature,glacier,precipitation,and evaporation.Our investigation and analysis will provide references for researches related to lake changes in the QTP and the response to climate fluctuations.