European Diatom Database - Northern Irish Dataset

The European Diatom Database (EDDI) is a web-based information system designed to enhance the application of diatom analysis to problems of surface water acidification, eutrophication and climate change.

This dataset includes 54 relatively small, shallow lakes from Northern Ireland. All sites are lowland, alkaline and cover a wide range of phosphorus concentrations. Surface sediment samples were collected during April 1990 and May 1991 and diatoms were counted by John Anderson. A regional diatom-total phosphorus transfer function was developed from these data and details are given in Anderson et al. (1993) and Anderson & Rippey (1994). These sites also form part of a larger training set used to develop a NW European diatom-total phosphorus inference model (Bennion et al., 1996). Palaeolimnological studies have been undertaken at a number of these sites (e.g. Anderson, 1989, 1997; Anderson & Rippey, 1994; Anderson et al., 1993; Rippey et al., 1997).

欧洲硅藻数据库（EDDI）是一套基于网络的信息系统，旨在强化硅藻分析在地表水酸化、富营养化及气候变化相关问题中的应用价值。

本数据集包含北爱尔兰的54处中小型浅水湖泊。所有采样点均位于低地，水体呈碱性，且覆盖了跨度广泛的磷浓度区间。研究团队于1990年4月与1991年5月采集了表层沉积物样本，硅藻计数工作由约翰·安德森（John Anderson）完成。基于本次数据集构建了区域硅藻-总磷传递函数，相关细节已发表于安德森等（1993）以及安德森与里皮（1994）的研究成果中。这些采样点同时也是构建西北欧硅藻-总磷推断模型所用的大型训练集的一部分（本尼恩等，1996）。目前已有多项针对其中部分采样点的古湖沼学研究得以开展（例如安德森，1989、1997；安德森与里皮，1994；安德森等，1993；里皮等，1997）。