京杭大运河济宁段秋冬季硅藻分布及法医学应用  

Distribution of diatoms in Jining section of Beijing-Hangzhou canal in autumn and winter and its forensic application

作　　者：苏潇男 韩笑[3] 方赟 崔文[3] 郝大鹏[2] Su Xiaonan;Han Xiao;Fang Yun;Cui Wen;Hao Dapeng(Medical College of Qingdao University,Qingdao,266000,Chian;The Affiliated Hospital of Qingdao University,Qingdao,266000,Chian;Jining Medical University,Jining,272067,Chian)

机构地区：[1]青岛大学医学院,山东青岛266000 [2]青岛大学附属医院,山东青岛266000 [3]济宁医学院,山东济宁272067

出　　处：《中国法医学杂志》2020年第3期290-295,共6页Chinese Journal of Forensic Medicine

基　　金：济宁医学院教师科研扶持基金(JY2017FY006);济宁医学院2019年大学生创新训练计划项目(CX2019134)。

摘　　要：目的通过对京杭大运河济宁段及济宁周边水域秋冬两季水样中硅藻种类及数量的分析,寻找不同落水地点之间的差异。方法在A(6)、B(6)、C(3)三条河流中选取15个站位点,分别在秋冬两季进行水样采集,采用石墨消解-扫描电镜法对各站位点的硅藻进行定性和定量分析。结果秋冬两季节各站位点硅藻含量间差异有统计学意义(P<0.05)。不同站位点之间优势种属的种类和个数不完全相同,且相同优势种属间优势率完全不同,因此各站位点之间存在种属优势率差异。C河流硅藻数量(每视野>100个)明显多于A、B河流硅藻数量(每视野<15个),A、B河流硅藻数量与C河流硅藻数量相差约10倍,硅藻数量上存在显著差异。结论对于溺亡案件的法医学分析,在落水时间和落水地点上提供了一定的参考。Objective To find out the differences in different water-falling sites in autumn and winter by analyzing the types and quantities of diatoms in the water samples from the Jining section of the Beijing-Hangzhou Grand Canal and waters around Jining.Methods water samples from 15 selected sites in river A(6),B(6)and C(3)were collected in autumn and winter respectively.Microwave digestion-scanning electron microscopy was applied to conduct qualitative and quantitative analysis to the diatoms from each sites.Results There were differences in the content of diatoms among the sites in autumn and winter(P<0.05).The species and number of dominant species are not the same in different sites,and the dominance rates are completely different among the same dominant species.Therefore,there are differences about dominance rates in different sites.The number of diatoms in river C(>100 per visual field)is significantly greater than that in rivers A and B(<15 per visual field).There are significant differences in quantity.Conclusion For forensic analysis of drown cases,Some references are provided for the determination of the time and location of the water-falling.

关 键 词：法医病理学 溺水 硅藻 落水地点 

分 类 号：DF795.2[医药卫生—法医学]