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

Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Effects of abiotic factors on species richness and cover in Central European weed communities
Original language description
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
Czech name
Vlivy abiotických faktorů na druhovou bohatost a pokryvnost ve středoevropských plevelových společenstvech
Czech description
Analýza druhové bohatosti ve středoevropské plevelové vegetaci.

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EH - Ecology - communities
OECD FORD branch
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Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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