Relationships between the evaporative stress index and winter wheat and spring barley yieldanomalies in the Czech Republic

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F16%3A00464738" target="_blank" >RIV/86652079:_____/16:00464738 - isvavai.cz</a>

Alternative codes found

RIV/62156489:43210/16:43910603

Result on the web

<a href="http://dx.doi.org/10.3354/cr01411" target="_blank" >http://dx.doi.org/10.3354/cr01411</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3354/cr01411" target="_blank" >10.3354/cr01411</a>

Result language

angličtina

Original language name

Relationships between the evaporative stress index and winter wheat and spring barley yieldanomalies in the Czech Republic

Original language description

There is a growing demand for timely, spatially distributed information regardingncrop condition and water use to inform agricultural decision making and yield forecasting efforts.nThermal infrared remote sensing of land-surface temperature has proven valuable for mappingnevapotranspiration (ET) and crop stress from field to global scales using energy balance models.nThis is because canopy temperature is strongly regulated by the transpiration flux, which isnreduced under stress conditions. This study investigates the utility of an evaporative stress indexn(ESI), computed using the thermal-based Atmosphere–Land Exchange Inverse (ALEXI) surfacenenergy balance model, for explaining yield variability over the Czech Republic for the periodn20022014. ESI timeseries, representing standardized anomalies in the actual-to-reference ETnratio and an indicator of vegetation health, are compared with yield data collected for winternwheat and spring barley crops in 32 agricultural districts, comprising a range of climatic conditionsnwithin the Czech Republic. Correlations between ESI and yield anomalies vary with climaticnregion, with strongest correlations identified in the more drought-prone South Moravian districtsnand weaker relationships in the wetter highlands regions. In most regions, correlations withnspring barley yield anomalies exceeded performance for winter wheat. For both crops, correlationsnpeaked during the 1 to 2 mo period prior to the nominal harvest date. These results providenguidance for effective integration of remotely sensed moisture stress indicators within operationalnyield forecasting systems.

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

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

Publication year

2016

Confidentiality

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

Name of the periodical

Climate Research

ISSN

0936-577X

e-ISSN

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Volume of the periodical

70

Issue of the periodical within the volume

2-3

Country of publishing house

DE - GERMANY

Number of pages

16

Pages from-to

215-230

UT code for WoS article

000388194400009

EID of the result in the Scopus database

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