新版DELTA系统在植物分类学中的应用——以羊茅属研究为例

Application of new DELTA system in plant taxonomy——Study on Festuca L.as an example

关键词:  新版DELTA系统  植物分类学  描述  交互式鉴定

Key words:  New DELTA system  Plant Taxonomy  description  interactive identification

摘要:

DELTA系统是针对分类学研究开发的综合性多功能软件包。新版DELTA系统在运行环境、程序、指令、界面、操作方式及中文字符处理等重要功能上比旧版本均有较大改进。作为国际分类学数据库数据交换标准,应用该系统可以规范分类学描述,对研究中所有常用性状进行识别和处理,自动生成各个研究对象分类学特征描述并对其进行详尽的相似性和差异性比较,对性状特征和分类单元进行注释和图像示例,将数据转换为数量分类学或分支分类学所需格式以生成树状图,自动生成检索表,建成基于本地和网络的交互式专家辅助鉴定系统等。DELTA系统作为植物分类学研究的常用手段和工具是非常适合及大有帮助的。

Abstract:

DELTA system is a flexible data-coding format for taxonomic description and identification. The new edition of the system is much more powerful and convenient to use than the old one, especially in processing Chinese characters. As the data exchange standard designated by the International Taxonomic Databases Working Group, the system is capable of encoding all types of the characters commonly used for identification and classification, and an associated set of programs can be used for producing and typesetting natural-language descriptions and keys, for interactive identification and information retrieval,and for conversion of the data to formats required for phylogenetic and phenetic analysis. DELTA system can serve as a powerful and helpful assistant for taxonomic study.