2009
Arable weed vegetation of the northeastern part of the Czech Republic: effect of environmental factors on species composition
CIMALOVÁ, Šárka a Zdeňka LOSOSOVÁZákladní údaje
Originální název
Arable weed vegetation of the northeastern part of the Czech Republic: effect of environmental factors on species composition
Název česky
Plevelová vegetace severovýchodní části České republiky
Autoři
CIMALOVÁ, Šárka (203 Česká republika, domácí) a Zdeňka LOSOSOVÁ (203 Česká republika, garant, domácí)
Vydání
Plant Ecology, Netherlands, Springer, 2009, 1385-0237
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 1.567
Kód RIV
RIV/00216224:14410/09:00035697
Organizační jednotka
Pedagogická fakulta
UT WoS
000266454700005
Klíčová slova anglicky
arable land; climate; crop; gradient analysis; seasonal dynamics; soil type
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 7. 3. 2011 09:31, doc. RNDr. Zdeňka Lososová, Ph.D.
V originále
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.
Česky
Studovaly jsme faktory ovlivňující změny v druhovém složení plevelové vegetace.
Návaznosti
MSM0021622416, záměr |
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