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The Daning River is a very important tributary in the Three Gorges Reservoir area. It is also a famous scenic spot. Anomalies appeared after water storage of the reservoir in June, 2003. In September, 2003, eutrophication monitoring in the 135-m backwater reach of the Daning River was conducted and the data were simply analyzed. The assessment result is that water body in the segment from Shuauglong to Longmen was mesotrophic or eutrophic. At the same time, the causes of its nutritional change were discussed, and counter-measures have been proposed. 相似文献
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Carl F Braun工程学荣誉教授乔治·w·豪斯纳（George W．Housner）,在距98岁生日仅差几周经历了短短的病痛之后,于2008年11月10日逝世。他当时住在他生活了几年的帕萨迪纳退休公寓。对于所有我们认识他的人来说,这标志着一个时代的结束。 相似文献
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