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@article{835475,
author = {Cimalová, Šárka and Lososová, Zdeňka},
article_location = {Netherlands},
article_number = {1},
keywords = {arable land; climate; crop; gradient analysis; seasonal dynamics; soil type},
language = {eng},
issn = {1385-0237},
journal = {Plant Ecology},
title = {Arable weed vegetation of the northeastern part of the Czech Republic: effect of environmental factors on species composition},
volume = {203},
year = {2009}
}
TY - JOUR
ID - 835475
AU - Cimalová, Šárka - Lososová, Zdeňka
PY - 2009
TI - Arable weed vegetation of the northeastern part of the Czech Republic: effect of environmental factors on species composition
JF - Plant Ecology
VL - 203
IS - 1
SP - 45-57
EP - 45-57
PB - Springer
SN - 13850237
KW - arable land
KW - climate
KW - crop
KW - gradient analysis
KW - seasonal dynamics
KW - soil type
N2 - Factors determining changes in species composition of arable field weed vegetation in the northeastern part of the Czech Republic were studied. Gradsect sampling, i.e. a priori stratified selection of sampling sites, was used for the field research. Using this method, a data set of 174 vegetation plots covering a whole range of basic environmental characteristics in the study area, was compiled in 2001 2003. A set of environmental variables (altitude, annual precipitation, mean annual temperature, soil type, soil pH and crop type) together with date of sampling was obtained for each plot. Ordination methods were used to determine the effects of variables on arable weed composition. For each variable the gross and net effect on weed species composition were calculated. All variables considered in this study had a significant effect on weed species composition and explained 7.25% of the total variation in species data. Major changes in weed species composition in the study area were associated with different crop types. The second most important gradient in variability of weed vegetation in the study area was associated with altitudinal and climatic changes followed by seasonal changes and different soil types and pH. Our results show that on a regional scale, the relative importance of different crop types and their associated management on changes in arable weed species composition is higher than the relative importance of climatic variables. The relative importance of climatic variables decreases with their decreasing length of gradient.
ER -
CIMALOVÁ, Šárka and Zdeňka LOSOSOVÁ. Arable weed vegetation of the northeastern part of the Czech Republic: effect of environmental factors on species composition. \textit{Plant Ecology}. Netherlands: Springer, 2009, vol.~203, No~1, p.~45-57. ISSN~1385-0237.
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