刑事技术2026，Vol.51Issue(2)：202-208,7.DOI:10.16467/j.1008-3650.2025.0013
青海省玉树藏族自治州主要水域硅藻种属分布的初步调查
The Preliminary Investigation on the Distribution of Diatom Species in Yushu Tibetan Autonomous Prefecture,Qinghai Province
摘要
Abstract
By investigating the distribution of diatoms in major waters within Yushu Tibetan Autonomous Prefecture,Qinghai Province,a database of diatoms was established to support the diagnosis of drowning.In 2023,water samples were collected from two lakes and three rivers(totaling six water collection points)of Yushu in spring,summer,autumn,and winter respectively.The diatom genera were quantitatively analyzed using graphite ablation-vacuum filtration-automated scanning electron microscopy detection.A total of 66 genera of diatoms and one genus of golden algae were detected in the collected samples.Among these,there were 5 dominant genera,34 genera that could be detected throughout the year,24 genera that could be detected at each site,and 18 genera that were found to be seasonally or regionally specialized.The composition of diatoms at each site was found to be significantly different both seasonally and regionally(P＜0.01).In this paper,the graphite digestion-vacuum filtration-automated scanning electron microscopy detection method was applied to enhance the richness of diatom survey data.The species composition and distribution of diatoms in the main waters of Yushu exhibit local characteristics,and it is necessary to establish a diatom database to support the examination,identification,and detection of drowning cases.关键词
法医病理学/溺死/硅藻/石墨消解-真空抽滤-自动化扫描电镜检测法/硅藻数据库Key words
forensic pathology/drowning/diatom/graphite digestion-vacuum filtration-auto SEM/diatom database分类
社会科学引用本文复制引用
冶丽娜,李周措,李黎光,张贺睿,乔晓晓,邢怡德,陈亮..青海省玉树藏族自治州主要水域硅藻种属分布的初步调查[J].刑事技术,2026,51(2):202-208,7.基金项目
青海省二○二三年第一批新开科技计划项目(2023-QY-203) （2023-QY-203）
