Vlivy abiotických faktorů na druhovou bohatost a pokryvnost ve středoevropských plevelových společenstvech

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F05%3A00013892" target="_blank" >RIV/00216224:14310/05:00013892 - 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

Effects of abiotic factors on species richness and cover in Central European weed communities

Popis výsledku v původním jazyce

Plant species richness and cover of 698 samples of weed flora, recorded in standard plots in the Czech Republic from 1955 to 2000, were related to altitudinal floristic regions, soil types, cultivated crops, climate, altitude and year of the record. Stepwise backward elimination of explanatory variables was used to analyse the data, taking into account their interactive nature, until the general linear model contained only significant terms. Net effects of particular variables on weed species number andcover, independent of covariance with other variables, were determined.Weed species number and cover were significantly affected by altitudinal floristic region and its interaction with the year of sampling. Both weed species number and cover decreasedover time, more so in the moderate-to-cold than in the warm altitudinal floristic region, due to the increase in agricultural intensification being more profound at higher than lower altitudes. There was no direct effect of soil type on w

Název v anglickém jazyce

Effects of abiotic factors on species richness and cover in Central European weed communities

Popis výsledku anglicky

Plant species richness and cover of 698 samples of weed flora, recorded in standard plots in the Czech Republic from 1955 to 2000, were related to altitudinal floristic regions, soil types, cultivated crops, climate, altitude and year of the record. Stepwise backward elimination of explanatory variables was used to analyse the data, taking into account their interactive nature, until the general linear model contained only significant terms. Net effects of particular variables on weed species number andcover, independent of covariance with other variables, were determined.Weed species number and cover were significantly affected by altitudinal floristic region and its interaction with the year of sampling. Both weed species number and cover decreasedover time, more so in the moderate-to-cold than in the warm altitudinal floristic region, due to the increase in agricultural intensification being more profound at higher than lower altitudes. There was no direct effect of soil type on w

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název periodika

Agriculture, Ecosystems and Environment

ISSN

0167-8809

e-ISSN

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Svazek periodika

109

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

1-8

Kód UT WoS článku

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EID výsledku v databázi Scopus

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