J 2009

Arable weed vegetation of the northeastern part of the Czech Republic: effect of environmental factors on species composition

CIMALOVÁ, Šárka and Zdeňka LOSOSOVÁ

Basic information

Original name

Arable weed vegetation of the northeastern part of the Czech Republic: effect of environmental factors on species composition

Name in Czech

Plevelová vegetace severovýchodní části České republiky

Authors

CIMALOVÁ, Šárka (203 Czech Republic, belonging to the institution) and Zdeňka LOSOSOVÁ (203 Czech Republic, guarantor, belonging to the institution)

Edition

Plant Ecology, Netherlands, Springer, 2009, 1385-0237

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.567

RIV identification code

RIV/00216224:14410/09:00035697

Organization unit

Faculty of Education

UT WoS

000266454700005

Keywords in English

arable land; climate; crop; gradient analysis; seasonal dynamics; soil type

Tags

International impact, Reviewed
Změněno: 7/3/2011 09:31, doc. RNDr. Zdeňka Lososová, Ph.D.

Abstract

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.

In Czech

Studovaly jsme faktory ovlivňující změny v druhovém složení plevelové vegetace.

Links

MSM0021622416, plan (intention)
Name: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase
Investor: Ministry of Education, Youth and Sports of the CR, Diversity of Biotic Communities and Populations: Causal Analysis of variation in space and time