长江中华鲟产卵场三维水力学特性研究
Three-dimensional Hydraulics Characteristics of Chinese Sturgeon Spawning Site in the Yangtze River
作者：王远坤(1.南京大学 地球科学与工程学院，江苏 南京 210093；2. 河海大学 水文水资源学院，江苏 南京 210098)；夏自强(河海大学 水文水资源学院，江苏 南京 210098)
Author：Wang Yuankun(1. School of Earth Sci., Nanjing Univ., Nanjing 210093,China;2. College of Hydrology and Water Resources,Hohai Univ.,Nanjing 210098,China )；Xia Ziqiang(College of Hydrology and Water Resources,Hohai Univ.,Nanjing 210098,China)
收稿日期：2008-08-29 年卷（期）页码：2010,42(1):14-19
期刊名称：工程科学与技术
Journal Name：Advanced Engineering Sciences
关键字：中华鲟;产卵场;三维流;相对流速;频率分布
Key words：Chinese sturgeon; spawning site; three-dimensional hydraulics; relative velocity; frequency distributions
基金项目：国家自然科学基金重大项目资助课题(30490235)
中文摘要
利用声学多普勒流速仪对葛洲坝下游中华鲟产卵场进行了现场流速观测，并对现场调查数据进行了统计分析。阐述了相对流速计算方法，利用K-S检验方法检验了研究区12个断面的流速分布特点，分析了纵向、横向和垂向3维空间的相对流速累积频率分布特征。结果表明：在纵向，产卵区内的流速频率分布相同，与非产卵区有显著性差异；在横向和垂向，整个研究区域的流速频率分布均具有显著性差异；产卵区在3维方向比非产卵区具有明显的流速多样性，这种流速空间多样性为中华鲟自然繁殖活动提供了有利条件,为中华鲟产卵区的保护提供理论支持和参考。
英文摘要
Acoustic Doppler Current Profiler (ADCP) was used to collect water velocity data between Gezhouba Dam and Miaozui. The method of relative velocity was given. Statistical comparisons of cumulative frequency distributions of three-dimensional velocity components were performed using the Kolmogorov-Smirnov (K-S) two-sample test. The results showed that the distributions of three dimensional velocity components of main spawning area are significantly different from those of non- spawning areas. Velocity diversity of spawning area could benefit the increase in fertilization rate of Chinese sturgeon eggs and the protection of its zygotes.
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