J 2004

Can seasonal variation in fen water chemistry influence the reliability of vegetation-environment analyses?

HÁJEK, Michal and Petr HEKERA

Basic information

Original name

Can seasonal variation in fen water chemistry influence the reliability of vegetation-environment analyses?

Name in Czech

Může sezónní variabilita chemismu vody na slatiništích ovlivnit spolehlivost vegetačně-stanovištních analýz?

Authors

HÁJEK, Michal (203 Czech Republic, guarantor) and Petr HEKERA (203 Czech Republic)

Edition

Preslia, 2004, 0032-7786

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/04:00019259

Organization unit

Faculty of Science

UT WoS

000220675600001

Keywords in English

anion and cation concentration; bog; central Europe; fen meadow; mire; nutrient availability; seasonal variation; spring; Western Carpathians; wetlands

Tags

Změněno: 29/6/2009 13:59, prof. Mgr. Michal Hájek, Ph.D.

Abstract

ORIG CZ

V originále

Temporal variation in fen water chemistry was studied in the Western Carpathian flysch zone (Czech Republic, Slovakia). Ten sites representing particular spring-fen type (tufa-forming fens, rich fens, spring-fen meadows, rich Sphagnum-fens, poor Sphagnum-fens) were studied. Water chemistry was determined three times a year (spring, summer, autumn) for 3 years. Water pH and conductivity were the most stable of the measured variables. Na+, K+, Ca2+ and SO42- were also relatively stable. On the contrary, NO3-, Cl-, Fe, PO43- and redox-potential temporally varied. These fluctuating, unstable variables explained very low or insignificant amounts of the variation in plant species data in our study area, possibly because of their instability. The separation of sites along PCA axis is clearest in the ordination of the autumnal data set. Major vegetation types were separated in PCA even when data from all three seasons were pooled.

In Czech

Práce se zabývá otázkou, zda může sezónní variabilita chemismu vody na slatiništích ovlivnit spolehlivost vegetačně-stanovištních analýz.

Links

AV0Z6005908, plan (intention)
Name: Biodiverzita rostlin: její variabilita, vývoj a funkce na úrovni organismů, společenstev a ekosystémů; její kulturní aspekty; využití v Průhonickém parku
GA206/02/0568, research and development project
Name: Ekologie a paleoekologie prameništních mokřadů západní části Karpat
Investor: Czech Science Foundation, Ecology and palaeoecology of spring wetlands in the western part of the Carpathians
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