Drought stress impact on vegetable crop yields in the Elbe River lowland between 1961 and 2014
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F16%3A00463026" target="_blank" >RIV/86652079:_____/16:00463026 - isvavai.cz</a>
Alternative codes found
RIV/60460709:41210/16:71630
Result on the web
<a href="http://dx.doi.org/10.18172/cig.2924" target="_blank" >http://dx.doi.org/10.18172/cig.2924</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.18172/cig.2924" target="_blank" >10.18172/cig.2924</a>
Alternative languages
Result language
angličtina
Original language name
Drought stress impact on vegetable crop yields in the Elbe River lowland between 1961 and 2014
Original language description
The study is focused on drought stress that is detrimental to yield formation of field-grown vegetables in the lowland regions of the Czech Republic. Extensive vegetable yield losses are attributed to drought, often in combination with heat or other stresses. The objective of this research was to investigate, under field conditions, the effect of drought stress quantified by the Standardized Precipitation Evapotranspiration Index (SPEI) on yield variability of key vegetable crops growing in the Elbe River lowland, representing central European agriculture conditions. Additionally, we also tried to determine the period of crop with the highest sensitivity to drought (PCSD) of vegetable crops over the Elbe River lowland. Historical climate datasets for a regular gridded network with a high horizontal resolution of 10 km (CZGRIDS) and 305 climatological stations from the Czech Hydrometeorological Institute were applied. The SPEI at 1-, 3-, and 6-month lags was calculated for the period 1961-2014 based on precipitation and input dataset for the reference evapotranspiration (ETr) by the Penman-Monteith (PM) method. Moreover, the difference between daily precipitation and crop evapotranspiration (ETc) has been used to calculate the mean crop water balance (D) per main growth stages, as an indicator of plant stress. This improvement increased the applicability of the SPEI in agriculture drought impact on rainfed and/or irrigated field crops grown under various agronomic management systems. To understand how the SPEI, over the period 1989-2014, controlled the yield variation, we calculated the percentage of yield losses and gains for each crop. When the value of SPEI at 3-month lag–as a measure of the balance between the water availability and the atmospheric water demand–for PCSD was between -1.49 and 0.99, the yield moderately increased for Fruiting vegetables (e.g. tomatoes, cucumber).
Czech name
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Czech description
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Classification
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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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Cuadernons de Investigactión Geográfica
ISSN
0211-6820
e-ISSN
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Volume of the periodical
42
Issue of the periodical within the volume
1
Country of publishing house
ES - SPAIN
Number of pages
15
Pages from-to
127-143
UT code for WoS article
000382769100008
EID of the result in the Scopus database
2-s2.0-84978733932