The impacts of key adverse weather events on the field-grown vegetable yield variability in the Czech Republic from 1961 to 2014

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F17%3A00461691" target="_blank" >RIV/86652079:_____/17:00461691 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41210/17:74337 RIV/00020699:_____/17:N0000052

Výsledek na webu

<a href="http://dx.doi.org/10.1002/joc.4807" target="_blank" >http://dx.doi.org/10.1002/joc.4807</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/joc.4807" target="_blank" >10.1002/joc.4807</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The impacts of key adverse weather events on the field-grown vegetable yield variability in the Czech Republic from 1961 to 2014

Popis výsledku v původním jazyce

The response of field-grown vegetables to adverse weather conditions is strongly coupled to the timing of adverseevents,thesensitivityofthegrowthstageoftheimpactedcropandthemanagementactionsthataretaken.Toestimate the long-term yield response to changes in temperature and precipitation as well as the short-term response to key adverse weather events (e.g. heavy precipitation, drought and heat stress) on the yields of vegetable crops, we used several statistical approaches with six daily impact-indicators, the four monthly drought indices and the climate trends. Our study integrated a newly available historical yield dataset at the district level (the finest spatial resolution) for all highly marketable vegetables (celeriac, late carrots, root parsley, early kohlrabi, summer savoy cabbage, late cauliflower, late cabbage, onions, green peas, tomatoes,saladandpicklingcucumbers)andahigh-resolutionhistoricalclimatedataset(sevendailymeteorologicalvariables at a 10×10km resolution) over a 54-year period in the Czech Republic (CZ). Different indices were used to reflect different dimensions of water and heat stress, which have different impacts on vegetable growth and yield. We find positive long-term impacts of recent warming on fruiting vegetables (from 4.9 to 12.2%∘C−1) but decreases in the yield stability of traditionally grownrootvegetablesinthewarmestareasofthecountry.Short-termextremetemperaturevariabilities(dayswithheatstress) were found to be the dominant type of adverse event for tomato and cucumber production due to its effect on increased soil water demand, which increased transpiration rates, whereas changes in both the diurnal temperature ranges and minimum temperature (Tmin) were associated with minimal risk of frost damage. Brassicas vegetables are widely irrigated in the CZ, but irrigation does not fully mitigate drought effects, hence, short-term extreme precipitation variability largely controls crop production in the growing districts. The high frequencies of dry days and days with heavy precipitation within the critical growth stages of brassicas reflect a competition between more dry days and greater precipitation intensity on wet days. The yieldvariabilityofbulbsislargelyexplainedbybothshort-termextremeprecipitationandtemperaturevariability(drought-heat stress), which reflects the predominantly rain-fed system of onion cultivation. Both drought and heat stress and changes in Tmin were important in explaining yield losses of root vegetables. Legumes had the lowest risk of multiple stresses during their short growth cycle, but droughts remain the dominant type of adverse event. Years with yield gains were substantially more common than years with yield losses for brassicas, bulbs and legumes vegetables in all of the cultivated regions.n

Název v anglickém jazyce

The impacts of key adverse weather events on the field-grown vegetable yield variability in the Czech Republic from 1961 to 2014

Popis výsledku anglicky

The response of field-grown vegetables to adverse weather conditions is strongly coupled to the timing of adverseevents,thesensitivityofthegrowthstageoftheimpactedcropandthemanagementactionsthataretaken.Toestimate the long-term yield response to changes in temperature and precipitation as well as the short-term response to key adverse weather events (e.g. heavy precipitation, drought and heat stress) on the yields of vegetable crops, we used several statistical approaches with six daily impact-indicators, the four monthly drought indices and the climate trends. Our study integrated a newly available historical yield dataset at the district level (the finest spatial resolution) for all highly marketable vegetables (celeriac, late carrots, root parsley, early kohlrabi, summer savoy cabbage, late cauliflower, late cabbage, onions, green peas, tomatoes,saladandpicklingcucumbers)andahigh-resolutionhistoricalclimatedataset(sevendailymeteorologicalvariables at a 10×10km resolution) over a 54-year period in the Czech Republic (CZ). Different indices were used to reflect different dimensions of water and heat stress, which have different impacts on vegetable growth and yield. We find positive long-term impacts of recent warming on fruiting vegetables (from 4.9 to 12.2%∘C−1) but decreases in the yield stability of traditionally grownrootvegetablesinthewarmestareasofthecountry.Short-termextremetemperaturevariabilities(dayswithheatstress) were found to be the dominant type of adverse event for tomato and cucumber production due to its effect on increased soil water demand, which increased transpiration rates, whereas changes in both the diurnal temperature ranges and minimum temperature (Tmin) were associated with minimal risk of frost damage. Brassicas vegetables are widely irrigated in the CZ, but irrigation does not fully mitigate drought effects, hence, short-term extreme precipitation variability largely controls crop production in the growing districts. The high frequencies of dry days and days with heavy precipitation within the critical growth stages of brassicas reflect a competition between more dry days and greater precipitation intensity on wet days. The yieldvariabilityofbulbsislargelyexplainedbybothshort-termextremeprecipitationandtemperaturevariability(drought-heat stress), which reflects the predominantly rain-fed system of onion cultivation. Both drought and heat stress and changes in Tmin were important in explaining yield losses of root vegetables. Legumes had the lowest risk of multiple stresses during their short growth cycle, but droughts remain the dominant type of adverse event. Years with yield gains were substantially more common than years with yield losses for brassicas, bulbs and legumes vegetables in all of the cultivated regions.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

International Journal of Climatology

ISSN

0899-8418

e-ISSN

—

Svazek periodika

37

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

17

Strana od-do

1648-1664

Kód UT WoS článku

000395349500037

EID výsledku v databázi Scopus

2-s2.0-85014336244