Gradients in species composition of Central European arable weed vegetation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14410%2F08%3A00025878" target="_blank" >RIV/00216224:14410/08:00025878 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Gradients in species composition of Central European arable weed vegetation

Popis výsledku v původním jazyce

Factors determining diversity in arable field weed vegetation were studied in northeastern part of the Czech Republic on a data set of 174 plots. The species records were taken in 2001-2003 from 20m2 relevé plots situated at the field edges.As predictors, the climatic and edafic variables were used together with crop type and season. for analyses of gradients in species composition ordination methods were used. Gross and net effect of each variable were calculated. Net effect was tested by series of partial CCAs for each variable with other variables as covariables. The structure of species with the highest fit and score along the first ordination axis was analysed. The main proportion of variability in species composition was explained by crop type (cereals, and root crop). The second important were climatic variables, followed by season, soil reaction, and soil type.

Název v anglickém jazyce

Gradients in species composition of Central European arable weed vegetation

Popis výsledku anglicky

Factors determining diversity in arable field weed vegetation were studied in northeastern part of the Czech Republic on a data set of 174 plots. The species records were taken in 2001-2003 from 20m2 relevé plots situated at the field edges.As predictors, the climatic and edafic variables were used together with crop type and season. for analyses of gradients in species composition ordination methods were used. Gross and net effect of each variable were calculated. Net effect was tested by series of partial CCAs for each variable with other variables as covariables. The structure of species with the highest fit and score along the first ordination axis was analysed. The main proportion of variability in species composition was explained by crop type (cereals, and root crop). The second important were climatic variables, followed by season, soil reaction, and soil type.

Druh

O - Ostatní výsledky

CEP obor

EF - Botanika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů