Changes in flowering of birch in the Czech Republic in recent 25 years (1991-2015) in connection with meteorological variables

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F15%3A43908555" target="_blank" >RIV/62156489:43210/15:43908555 - isvavai.cz</a>

Alternative codes found

RIV/67179843:_____/15:00455842 RIV/60460709:41210/15:72110

Result on the web

<a href="http://dx.doi.org/10.5586/aa.2015.043" target="_blank" >http://dx.doi.org/10.5586/aa.2015.043</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5586/aa.2015.043" target="_blank" >10.5586/aa.2015.043</a>

Result language

angličtina

Original language name

Changes in flowering of birch in the Czech Republic in recent 25 years (1991-2015) in connection with meteorological variables

Original language description

The paper presents the results of long-term phenological observations of silver birch (Betula pendula) during the years 1991-2015 across the phenological network of the Czech Hydrometeorological Institute. The data assembled over this period were used for identification of timing of generative phenophases associated with pollen release into the air: Inflorescence emergence 10%, beginning of flowering 10%, beginning of flowering 50%, beginning of flowering 100%, and end of flowering. The stations are situated at altitudes from 155 m (Doksany) to 1102 m (Modrava). The average timing of beginning of flowering 10% was 8th April (Lednice = lowland station) and 14th May (Modrava = mountain station); the average timing of beginning of flowering 50% was 12th April (Lednice) and 20th May (Modrava); the average timing of beginning of flowering 100% was 18th April (Lednice) and 22nd May (Modrava), and the average timing of end of flowering was 26th April (Lednice) and 28th May (Modrava). The totals of effective temperatures above 5oC (TS5) and sums of daily precipitation were used as a bio-climatological criterion for assessment of the dependence of phenological phases on meteorological variables. The average sums of TS5 and the average sums of daily precipitation total were as follows: 61.0-80.8oC, 82.8-327.4 mm (inflorescence emergence); 105.2-106.4oC, 85.9-365.2 mm (beginning of flowering 10%); 124.8-130.8oC, 89.8-385.9 mm (beginning of flowering 50%); 144.7-158.6oC, 95.2-390.7 mm (beginning of flowering 100%); and 181.6-223.8oC, 104.7-427.4 mm (end of flowering). The period of occurrence of birch pollen in the air lasts 52 days on average and the highest concentration was recorded on 23rd April, 2003-2606 pollen grains/m3.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EH - Ecology - communities

OECD FORD branch

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Project

<a href="/en/project/LO1415" target="_blank" >LO1415: CzechGlobe 2020 – Development of the Centre of Global Climate Change Impacts Studies</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

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

Name of the periodical

Acta Agrobotanica

ISSN

0065-0951

e-ISSN

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Volume of the periodical

68

Issue of the periodical within the volume

4

Country of publishing house

PL - POLAND

Number of pages

18

Pages from-to

285-302

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-84955309071