Paper · 2002 · Global Change Biology

Potential impact of climate change on selected agricultural crops in north‐eastern Austria

Vesselin Alexandrov; Josef Eitzinger; Vesna Cajic; et al.

10
claims
10
verbatim quotes
136
citations
4
research areas
—
Not open access

Abstract

Abstract The vulnerability and adaptation of major agricultural crops to various soils in north‐eastern Austria under a changing climate were investigated. The CERES crop model for winter wheat and the CROPGRO model for soybean were validated for the agrometeorological conditions in the selected region. The simulated winter wheat and soybean yields in most cases agreed with the measured data. Several incremental and transient global circulation model (GCM) climate change scenarios were created and used in the study. In these scenarios, annual temperatures in the selected region are expected to rise between 0.9 and 4.8 °C from the 2020s to the 2080s. The results show that warming will decrease the crop‐growing duration of the selected crops. For winter wheat, a gradual increase in air temperature resulted in a yield decrease. Incremental warming, especially in combination with an increase in precipitation, leads to higher soybean yield. A drier climate will reduce soybean yield, especially on soils with low water storage capacity. All transient GCM climate change scenarios for the 21st century, including the adjustment for only air temperature, precipitation and solar radiation, projected reductions of winter wheat yield. However, when the direct effect of increased levels of CO 2 concentration was assumed, all GCM climate change scenarios projected an increase in winter wheat yield in the region. The increase in simulated soybean yield for the 21st century was primarily because of the positive impact of warming and especially of the beneficial influence of the direct CO 2 effect. Changes in climate variability were found to affect winter wheat and soybean yield in various ways. Results from the adaptation assessments suggest that changes in sowing date, winter wheat and soybean cultivar selection could significantly affect crop production in the 21st century.

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Claims 10

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

The CERES (winter wheat) and CROPGRO (soybean) models were validated for the region: simulated winter wheat and soybean yields in most cases agreed with measured data.

Taxon
winter wheat and soybeanGlycine maxTriticum aestivume0
Outcome
simulated winter wheat and soybean yieldse0
Direction
agreede0
Comparator
measured datae0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The simulated winter wheat and soybean yields in most cases agreed with the measured data”

✓ located verbatim in the source · abstract, characters 305–394 · show in text ↑
Intervention effectobservedoriginal resultprojected

Claim · model-written summary

Warming is projected to decrease the crop-growing duration of the selected crops.

Taxon
cropse0
Treatment
warminge0
Outcome
crop‐growing duratione0
Direction
decreasee0

Not reportedComparator

Verbatim

e0

“warming will decrease the crop‐growing duration of the selected crops”

✓ located verbatim in the source · abstract, characters 680–749 · show in text ↑
Intervention effectobservedoriginal resultnegativesimulated

Claim · model-written summary

For winter wheat, a gradual increase in air temperature resulted in a simulated yield decrease.

Taxon
winter wheatTriticum aestivume0
Treatment
gradual increase in air temperaturee0
Outcome
yielde0
Direction
decreasee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“For winter wheat, a gradual increase in air temperature resulted in a yield decrease”

✓ located verbatim in the source · abstract, characters 751–835 · show in text ↑
Intervention effectobservedoriginal resultpositivesimulated

Claim · model-written summary

Incremental warming, especially combined with an increase in precipitation, leads to higher soybean yield in simulations.

Taxon
soybeanGlycine maxe0
Treatment
Incremental warming, especially in combination with an increase in precipitatione0
Outcome
soybean yielde0
Direction
highere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Incremental warming, especially in combination with an increase in precipitation, leads to higher soybean yield”

✓ located verbatim in the source · abstract, characters 837–948 · show in text ↑
Intervention effectobservedoriginal resultnegativesimulated

Claim · model-written summary

A drier climate will reduce soybean yield, especially on soils with low water storage capacity.

Taxon
soybeanGlycine maxe0
Treatment
A drier climatee0
Outcome
soybean yielde0
Direction
reducee0
Qualifier
especially on soils with low water storage capacitye0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“A drier climate will reduce soybean yield, especially on soils with low water storage capacity”

✓ located verbatim in the source · abstract, characters 950–1044 · show in text ↑
Intervention effectobservedoriginal resultnegativeprojected

Claim · model-written summary

All transient GCM climate change scenarios for the 21st century, adjusting only air temperature, precipitation and solar radiation, projected reductions of winter wheat yield.

Taxon
winter wheatTriticum aestivume0
Treatment
transient GCM climate change scenariose0
Outcome
winter wheat yielde0
Direction
reductionse0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“All transient GCM climate change scenarios for the 21st century, including the adjustment for only air temperature, precipitation and solar radiation, projected reductions of winter wheat yield”

✓ located verbatim in the source · abstract, characters 1046–1239 · show in text ↑
Intervention effectobservedoriginal resultpositiveprojected

Claim · model-written summary

When the direct effect of increased CO2 concentration was assumed, all GCM climate change scenarios projected an increase in winter wheat yield in the region.

Taxon
winter wheatTriticum aestivume0
Treatment
increased levels of CO 2 concentratione0
Outcome
winter wheat yielde0
Direction
increasee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“when the direct effect of increased levels of CO 2 concentration was assumed, all GCM climate change scenarios projected an increase in winter wheat yield in the region”

✓ located verbatim in the source · abstract, characters 1250–1418 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivesimulated

Claim · model-written summary

The simulated increase in soybean yield for the 21st century was attributed primarily to the positive impact of warming and especially the beneficial direct CO2 effect.

Taxon
soybeanGlycine maxe0
Treatment
warminge0
Outcome
simulated soybean yielde0
Qualifier
beneficial influence of the direct CO 2 effecte0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The increase in simulated soybean yield for the 21st century was primarily because of the positive impact of warming and especially of the beneficial influence of the direct CO 2 effect”

✓ located verbatim in the source · abstract, characters 1420–1605 · show in text ↑
Intervention effectobservedoriginal resultmixedsimulated

Claim · model-written summary

Changes in climate variability affected winter wheat and soybean yield in various ways.

Taxon
winter wheat and soybeanGlycine maxTriticum aestivume0
Treatment
Changes in climate variabilitye0
Outcome
yielde0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Changes in climate variability were found to affect winter wheat and soybean yield in various ways”

✓ located verbatim in the source · abstract, characters 1607–1705 · show in text ↑
Intervention effectauthor interpretationoriginal resultpositiveprojected

Claim · model-written summary

Adaptation assessments suggest that changes in sowing date and winter wheat and soybean cultivar selection could significantly affect crop production in the 21st century.

Taxon
winter wheat and soybeanGlycine maxTriticum aestivume0
Treatment
changes in sowing date, winter wheat and soybean cultivar selectione0
Outcome
crop productione0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“changes in sowing date, winter wheat and soybean cultivar selection could significantly affect crop production in the 21st century”

✓ located verbatim in the source · abstract, characters 1760–1890 · show in text ↑

Triticum aestivum · yield · Glycine max (soybean)Positive and negative results

57 papers: 36 positive, 21 negative or no effect

35 papers in the same direction as this paper · 16 in the opposite direction · 5 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

53 papers more in this group

See all 57 papers →

Glycine max · yield · Triticum aestivum (wheat)Positive and negative results

61 papers: 45 positive, 16 negative or no effect

44 papers in the same direction as this paper · 14 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

57 papers more in this group

See all 61 papers →

rainfall · yield · Glycine max (soybean)Results differ

38 papers: 14 positive, 24 negative or no effect

13 papers in the same direction as this paper · 23 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

34 papers more in this group

See all 38 papers →

heat · yield · Glycine max (soybean)Results differ

40 papers: 10 positive, 30 negative or no effect

9 papers in the same direction as this paper · 30 in the opposite direction

  1. negative
  2. negative
  3. negative

36 papers more in this group

See all 40 papers →

climate site · yield · Glycine max (soybean)Results differ

73 papers: 36 positive, 37 negative or no effect

36 papers in the same direction as this paper · 36 in the opposite direction

  1. positive
  2. negative
  3. positive

69 papers more in this group

See all 73 papers →

climate site · yield · Triticum aestivum (wheat)Positive and negative results

154 papers: 72 positive, 82 negative or no effect

81 papers in the same direction as this paper · 72 in the opposite direction

  1. positive
  2. negative
  3. negative

150 papers more in this group

See all 154 papers →

co2 · yield · Triticum aestivum (wheat)Positive and negative results

203 papers: 174 positive, 29 negative or no effect

173 papers in the same direction as this paper · 29 in the opposite direction

  1. positive
  2. positive
  3. positive

199 papers more in this group

See all 203 papers →

sowing time · yield · Glycine max (soybean)Positive and negative results

207 papers: 115 positive, 92 negative or no effect

114 papers in the same direction as this paper · 89 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

203 papers more in this group

See all 207 papers →

8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.