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71.
《Journal of Natural History》2012,46(23-24):3077-3089
The reefs of Rodrigues were some of the few reef areas in the Indian Ocean to escape the mass coral bleaching event of 1997–1998. However, during the last 2 weeks of February 2002 Rodrigues experienced sea-water temperatures over 30°C, clear skies and calm seas. Rapid assessments of the degree of coral bleaching and coral mortality were carried out at 22 sites around the coast of Rodrigues during March 2002. The surveys showed that the bleaching event in Rodrigues was not widespread, occurring at less than one-third of the sites surveyed and that coral mortality was restricted to sites in the north and west of the island. Where mortality did occur, it was severe, affecting up to 75% of corals at some sites. Coral species most vulnerable were Acropora cytherea and Acropora abrotanoides, which suffered up to 100% mortality. These colonies were still standing and had been very recently overgrown with turf algae. At present the reefs around Rodrigues are in good health, however, they are being impacted by over-fishing and sedimentation, and proposed developments have the potential to cause further damage to the reefs. It is likely that stressed corals will recover from bleaching events more slowly. It is therefore important that the coral reefs in Rodrigues are adequately protected from human impacts in order to increase their chances of surviving future bleaching events.  相似文献   
72.
西汉淮南王刘安不喜欢弋猎狗马驰骋,但是好著书、好鼓琴,希望积阴德,千古留名.于是招募大量宾客名士著书立说,<淮南子>是其重要著述.其中的<兵略训>主要阐述的是军事思想,但又蕴舍了浓重的民本主义思想元素.这些思想元素,对中国后世的民本主义思想发展,乃至现代人民战争思想的产生和发展,不无影响作用.  相似文献   
73.
Seventeen species of the genus Oswaldella Stechow have been studied, three of which are new to science (Oswaldella frigida sp. nov., O. medeae sp. nov. and O. monomammillata sp. nov.). The material studied was collected by several US Antarctic expeditions. Each species is described and figured, the systematic position amongst allied species is discussed and available data concerning autecology and geographical distribution are given. The remaining eight known species of the genus are also considered, regarding synonymy, autecology and geographical distribution. Finally, a general survey of the bathymetrical and biogeographical distribution of the known species of Oswaldella is given.  相似文献   
74.
75.
本文根据海-气相互作用的观点,研究了1970~1977年我国西南夏季风的爆发和撤退时间与印度洋海面温度距平的关系。结果表明季风爆发和撤退的早晚,在它们的前期海面温度距平是有差异的,这种差异在一些海区表现得更加明显。这对我们了解我国夏季风的特性是有意义的。  相似文献   
76.
本文以CCDOS2.13系y4H汉字为例,从分析汉字点阵字库的显示原理及汉字点阵字库的结构入手,介绍如何在西文DOS下直接读取汉字16点阵,并给出在屏幕上以点阵方式显示汉字的一般方法及显示函数的源程序清单。  相似文献   
77.
中国声乐艺术应逐步形成能充分体现中华民族音乐风格的有民族代表性的歌唱流派--"中国唱法"."中国唱法"应是融洋贯中的结果,需要我们根据自己的语言和民族气质的特点,根据各剧种、曲种、歌种的不同唱法、音乐风味的个性与共性之不同表现因素,与"美声唱法"中的科学发声方法和有关演唱技巧规范进行有机的结合.  相似文献   
78.
黄遵宪先生是毛泽东同志所说的向西方圆家寻求真理的先进中国人。他的西方科技文明观很深邃,从科学技术是第一生产力的观点采看,它今天仍有意义。  相似文献   
79.
The iron hypothesis, first proposed by John Martin in 1990[1], suggests that some surface oceans such as North and Equatorial Pacific Oceans have high nutrient but low chlorophyll (HNLC). Thus iron coming from terrestrial dusts is the primary factor limit…  相似文献   
80.
Sensitivity of the Pacific subtropical-tropical meridional cell to global warming is examined by using a global ocean-atmosphere coupled model developed at LASG/IAP. Results indicate that associated with the increasing of atmospheric carbon dioxide, the most prominent signals of global warming locate at high latitudes, and the change of middle and low latitudes, in particular the surface wind, is relatively weak, which leads to a weak response of the Pacific subtropical-tropical meridional cell. At the time of atmospheric carbon dioxide doubling, the change of the meridional cell strength is smaller than the amplitude of natural variability.  相似文献   
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