Evolution of the East Asian monsoon and its response to uplift of the Tibetan Plateau since 1.8 Ma recorded by major elements in sediments of the South China Sea

Evolution of the East Asian monsoon and its response to uplift of the Tibetan Plateau has been investigated in the study of global change. Core sediment samples drilled in the South China Sea during ODP Leg184 are the best materials for studying long-term variability of the East Asian monsoon. R-mode factor analysis of major elements in the fine grain-sized carbonate-free sediments (<4 μm) of the upper 185 mcd splice of ODP Site 1146 drilled during Leg184 in the South China Sea shows that Ti, TFe2O3, MgO, K2O, P, CaO, and Al2O3 are representative of a terrestrial factor. The variation in the terrestrial factor score is subject to chemical erosion in the source region and thus indicates the evolution of the East Asian summer monsoon. The terrestrial factor score has three stepwise decreases at ~1.3 Ma, ~0.9 Ma, and ~0.6 Ma, indicating the phased weakening of the East Asian summer monsoon is related to wholly stepwise, quick uplifts of the Tibetan Plateau since 1.8 Ma. The periodic fluctuation of the terrestrial factor score since ~0.6 Ma indicates that the glacial-interglacial cycles have been the main force driving the evolution of the East Asian monsoon. As in the case of Chinese loess, the long-term evolution of the East Asian monsoon recorded in sediments of the South China Sea reflects a coupled effect of the glacial-interglacial cycle and uplift of the Tibetan Plateau.     

基于浙江省台风灾害保险数据的农村住房易损性评价

利用浙江省农业政策性保险试点项目中的农村住房保险及理赔数据,定量分析了浙江省2007年圣帕、韦帕及罗莎3场台风灾害期间农村住房投保金额、赔付金额、保额损失率的分县汇总数据,以及与这3场台风的极大风速、过程降水量等致灾因子强度的定量关系.研究发现,浙江省农村住房的台风灾害保险金额损失率,其对数与过程降雨量有着很好的线性相关关系.依据这一关系,建立了浙江省农村住房台风易损性方程并给出相关参数.     

东汉汉译佛经词语例释

利用东汉时期的汉译佛经,讨论其中10个词语,或对诸家未及之词进行诠释,或补辞书之疏漏,或补证时贤之成说.     

AGOA与河北企业在东非的发展契机

美国为加强对非洲经贸、投资及合作关系,制定和实施了《非洲增长与机遇法案》(简称AGOA),对撒哈拉以南黑非洲国家纺织服装出口美国,赋予了历史上空前的优惠条件。文章就此深入分析了河北省业内企业在东非三国投资创业的机会与可能。     

闽浙沿岸上升流及其季节变化的数值研究

采用三维斜压非线性数值模式ECOMSED,同时考虑地形、边界流(台湾暖流、黑潮和长江冲淡水)、热通量及QuikSCAT风场等动力因子,对闽浙沿岸上升流及其季节变化进行了数值研究.结果表明,闽浙沿岸一年四季均有上升流存在,且上升流中心及上升流强度有明显的季节变化特征.其中,浙江沿岸舟山群岛和渔山列岛附近、福建沿岸海坛岛和马祖列岛附近四季均存在较强的上升流中心,上升流强度季节变化特征是"冬弱夏强".冬季上升流强度为10-3cm/s量级,沿岸平均上升流速约为0.3×10-3cm/s;夏季最大上升流速可达0.8×10-2cm/s,沿岸平均上升流速约为0.4×10-2cm/s.     

Seven new species of the genus Pseudostegana (Diptera: Drosophilidae) from South-west China,with DNA barcoding information

Seven new species of the genus Pseudostegana are discovered from South China: P. latiapicula sp. nov., P. nannanae sp. nov., P. bingxueae sp. nov., P. husaensis sp. nov., P. linyongi sp. nov., P. montipagana sp. nov., and P. sigangli sp. nov.; the first two new species belong to the P. latiparma species group, and the rest belong to the P. zonaria species group. The DNA sequences of the mitochondrial cytochrome c oxidase subunit I (COI) gene with BOLD Process ID and GenBank accession numbers are provided for the seven new species and 10 known species from southern China: P. acutifoliolata Li, Gao and Chen, 2010; P. angustifasciata Chen and Wang, 2005, P. bifasciata Chen, Toda and Wang, 2005, P. bilobata Li, Gao and Chen, 2010; P. insularis Li, Gao and Chen, 2010; P. latifasciata Chen, Toda and Wang, 2005, P. minutipalpata; P. nitidifrons Chen and Wang, 2005, P. pallidemaculata Chen and Wang, 2005 and P. silvana. Intra- and interspecific pairwise Kimura’s two-parameter (K2P) distances among these species are summarised. www.zoobank.org/urn:lsid:zoobank.org:pub:C01D7920-61AD-4651-8861-9D76C3CD86F6     

New records of West and South African Bathyporeia,with the description of four new species and a key to all species of the genus (Crustacea,Amphipoda)

New data on the warm temperate and tropical east Atlantic Bathyporeia species are presented. Four new species are described: Bathyporeia cunctator sp. nov. from South Africa, B. chevreuxi sp. nov. from Senegal, B. gladiura sp. nov. from South Africa, and B. griffithsi sp. nov. from Namibia. Bathyporeia cunctator sp. nov. and B. chevreuxi sp. nov. are very closely related to the west European B. tenuipes Meinert, 1877 and the Mediterranean B. lindstromi Stebbing, 1906 Stebbing, T. R. R. 1906. Amphipoda 1: Gammaridea.. Das Tierreich, 21: 1–806.  [Google Scholar]; these four cryptic species forming the complex tenuipes. Bathyporeia griffithsi sp. nov. and B. gladiura sp. nov. are highly distinctive new species. The morphotype “sunnivae” of Bathyporeia guilliamsoniana is recorded for the first time outside the Mediterranean Sea, in the Canary Islands. An identification key to all known Bathyporeia species is given.     

Stegana castanea species group (Diptera,Drosophilidae) from the Oriental region

The Stegana castanea species group is established as a morphological group within the subgenus Steganina, based on two known and six new species from the Oriental region: Stegana (Steganina) bacilla Chen and Aotsuka, 2004 Chen, HW and Aotsuka, T. 2004. A survey of the genus Stegana Meigen from southern Japan (Diptera, Drosophilidae). J Nat Hist., 38: 2779–2788. [Taylor & Francis Online], [Web of Science ®] , [Google Scholar]; S. castanea Okada, 1988 Okada, T. 1988. Family Drosophilidae (Diptera) from the Lund University Ceylon Expedition in 1962 and Borneo collections in 1978–1979. Entomol Scand (suppl)., 30: 109–149.  [Google Scholar]; S. (S.) reni sp. nov.; S. (S.) tiani sp. nov.; S. (S.) tongi sp. nov.; S. (S.) wangi sp. nov., S. (S.) weiqiuzhangi sp. nov. and S. (S.) xui sp. nov. from southern China. A key to all the species of this group is provided.     

浙江农村水污染现状及治理措施研究

分析了浙江农村水污染现状,指出了浙江农村水污染的成因,包括乡镇企业的排污,由农药化肥的过量或不合理的施用所致的农业面污染,未经处理的污水直接灌溉,畜禽养殖污染以及居民生活污染等,并在此基础上提出了浙江农村水污染的治理措施。     

柳永词的用典及其诗化倾向

考察《乐章集》,我们发现其各类题材用典的频率都较高,特别是都市题材的词作用典频率更高。柳永作为第一个专职词人,因其在创作时大量运用典故,使词具有了＂诗化＂、＂雅化＂倾向,使＂词＂逐渐被文人认可而登上＂大雅＂之堂。