Formalizované přístupy k fytocenologické klasifikaci vegetace

CHYTRÝ, Milan. Formalizované přístupy k fytocenologické klasifikaci vegetace (Formalized approaches to phytosociological vegetation classification). Preslia. Praha: Česká botanická společnost, vol. 72, No 1, p. 1-29. ISSN 0032-7786. 2000.

Basic information

• Original name: Formalizované přístupy k fytocenologické klasifikaci vegetace
• Name (in English): Formalized approaches to phytosociological vegetation classification
• Authors: CHYTRÝ, Milan (203 Czech Republic, guarantor).
• Edition: Preslia, Praha, Česká botanická společnost, 2000, 0032-7786.

Other information

• Original language: Czech
• Type of outcome: Article in a journal
• Field of Study: 10600 1.6 Biological sciences
• Country of publisher: Czech Republic
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• RIV identification code: RIV/00216224:14310/00:00002518
• Organization unit: Faculty of Science
• Keywords in English: Braun-Blanquet approach; data analysis; methods; theory; vegetation sampling
• Tags: Braun-Blanquet approach, data analysis, methods, theory, vegetation sampling

Abstract

Review a diskuse k metodám současné fytocenologie.

Abstract (in English)

The current theory and methods of phytosociological vegetation classification are divided into two major types: imperfectly formalized approaches, which build classifications without explicit description of the classification process, and formalized approaches, which aim at precise definitions of classification criteria and algorithms, thus yielding repeatable classifications. These two approaches are not antagonistic, as each of them is better applicable in different situations. As a rule, the imperfectly formalized approach is invaluable in fine-scale classifications at the landscape level, whereas the formalized approach is superior for large-scale vegetation surveys. In this paper, application of the formalized methods of vegetation classification in phytosociology is reviewed. First, classification criteria used in vegetation classification are evaluated. Second, possibilities for formalizing the phytosociological field sampling procedure are discussed, including the sample plot choice, spatial arrangement and size. Third, formalized approaches to data analysis are reviewed, including concepts of character species, sociological species groups, fidelity, hierarchy of classification units, deductive classification method, numerical classification, and nomenclature rules. Finally, recent developments of formalized classification are summarized with respect to large-scale vegetation surveys, phytosociological databases, analysis of large datasets and expert systems.

Links

• GA206/99/1523, research and development project: Name: Parametrizace fytocenologického systému pomocí velkých souborů dat

Investor: Czech Science Foundation, Parameterization of the phytosociological classification using large datasets

• MSM 143100010, plan (intention): Name: Časoprostorová dynamika biodiverzity v ekosystémech střední Evropy.

Investor: Ministry of Education, Youth and Sports of the CR, Spatiotemporal biodiversity dynamics in ecosystems of Central Europe