Abstract
The impact of global warming on changes in dry matter production (DMP) of an orchardgrass (Dactylis glomerata L.) located on three soils (coarse, medium and fine textured) in Northern Hokkaido, Japan, was estimated. The influence of low water stress resulting from a decrease in soil water on a change in impact was evaluated through simulations by using a climate change scenario and a previously validated grass growth model (CitationNakatsuji et al. 2002a). The effect of low water stress on growth during the first grass growing period (early May–early June) because of global warming would not be so intensive that the DMP would be expected to increase (1.2–1.4-fold of the present), except for fine-textured soil in low precipitation. In contrast, for the second grass growing period (mid June–early August), the effect of low water stress on growth would intensify over the years. An increase in DMP could be hardly expected in the case of low precipitation and finer-textured soil. The changes in DMP during the third grass growing period (mid August–mid September) with global warming and the influence of the amount of precipitation on these changes were negligible. The total DMP from the three cutting periods increased with global warming regardless of the soil texture and the amount of precipitation, although the finer the soil texture, the lower the total weight. However, the maximum ratio of the total DMP in the future to the present because of global warming was approximately 1.2-fold at most. This ratio was smaller than the previously reported value, estimated solely based on weather conditions over 100 years. It can be concluded that when we evaluate the change in grass production associated with global warming, it is important to take into account not only the effect of the increase in temperature and atmospheric CO2 concentration, but also the effect of the occurrence of low water stress resulting from a decrease in soil water, depending on the amount of precipitation or soil water retention characteristics.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Under global warming, dry matter production of orchardgrass in the first growing period was expected to increase 1.2-1.4-fold relative to the present, except on fine-textured soil in low precipitation.
- Taxon
- orchardgrass
.jpg?width=60)
Dactylis glomeratat0 - Treatment
- low water stresse1
- Outcome
- DMPe1
- Direction
- increasee1
- Value
- 1.2–1.4-folde1
- Qualifier
- first grass growing period (early May–early June)e1
- Comparator
- the presente1
- Setting
- Northern Hokkaido, Japant0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Evaluating the change in orchardgrass (Dactylis glomerataL.) production associated with global warming in Northern Hokkaido, Japan”
e1“The effect of low water stress on growth during the first grass growing period (early May–early June) because of global warming would not be so intensive that the DMP would be expected to increase (1.2–1.4-fold of the present)”
Claim · model-written summary
Total dry matter production of orchardgrass from three cuts increased with global warming regardless of soil texture and precipitation.
- Taxon
- orchardgrassDactylis glomeratat0
- Treatment
- global warminge2
- Outcome
- total DMPe2
- Direction
- increasede2
- Qualifier
- regardless of the soil texture and the amount of precipitatione2
- Setting
- Northern Hokkaido, Japant0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Evaluating the change in orchardgrass (Dactylis glomerataL.) production associated with global warming in Northern Hokkaido, Japan”
e2“The total DMP from the three cutting periods increased with global warming regardless of the soil texture and the amount of precipitation”
Claim · model-written summary
Finer soil texture was associated with lower total dry matter production of orchardgrass.
- Taxon
- orchardgrassDactylis glomeratat0
- Treatment
- the finer the soil texturee3
- Outcome
- total weighte3
- Direction
- lowere3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Evaluating the change in orchardgrass (Dactylis glomerataL.) production associated with global warming in Northern Hokkaido, Japan”
e3“although the finer the soil texture, the lower the total weight”
Claim · model-written summary
Changes in dry matter production during the third growing period under global warming were negligible.
- Taxon
- orchardgrassDactylis glomeratat0
- Treatment
- global warminge4
- Outcome
- changes in DMPe4
- Direction
- no_changeinferrede4
- Qualifier
- third grass growing periode4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Evaluating the change in orchardgrass (Dactylis glomerataL.) production associated with global warming in Northern Hokkaido, Japan”
e4“The changes in DMP during the third grass growing period (mid August–mid September) with global warming and the influence of the amount of precipitation on these changes were negligible”
Claim · model-written summary
An increase in dry matter production of orchardgrass is hardly expected under low precipitation and on finer-textured soil.
- Taxon
- orchardgrassDactylis glomeratat0
- Treatment
- low precipitation and finer-textured soile5
- Outcome
- DMPe5
- Direction
- increasee5
- Qualifier
- could be hardly expectede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Evaluating the change in orchardgrass (Dactylis glomerataL.) production associated with global warming in Northern Hokkaido, Japan”
e5“An increase in DMP could be hardly expected in the case of low precipitation and finer-textured soil”
Claim · model-written summary
The maximum ratio of future to present total dry matter production of orchardgrass under global warming is about 1.2-fold at most.
- Taxon
- orchardgrassDactylis glomeratat0
- Treatment
- global warminge6
- Outcome
- maximum ratio of the total DMPe6
- Direction
- maximume6
- Value
- approximately 1.2-folde6
- Qualifier
- at moste6
- Comparator
- the presente6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Evaluating the change in orchardgrass (Dactylis glomerataL.) production associated with global warming in Northern Hokkaido, Japan”
e6“However, the maximum ratio of the total DMP in the future to the present because of global warming was approximately 1.2-fold at most”
Claim · model-written summary
The projected ratio of total dry matter production is smaller than the ratio from a previously reported estimate based on weather only.
- Taxon
- orchardgrassDactylis glomeratat0
- Outcome
- ratioe7
- Direction
- smallere7
- Comparator
- the previously reported valuee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Evaluating the change in orchardgrass (Dactylis glomerataL.) production associated with global warming in Northern Hokkaido, Japan”
e7“This ratio was smaller than the previously reported value”
Claim · model-written summary
Future assessments of grass production change under global warming should account for low water stress from reduced soil water.
- Taxon
- orchardgrassDactylis glomeratat0
- Outcome
- change in grass productione0
- Qualifier
- low water stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Evaluating the change in orchardgrass (Dactylis glomerataL.) production associated with global warming in Northern Hokkaido, Japan”
e0“when we evaluate the change in grass production associated with global warming, it is important to take into account not only the effect of the increase in temperature and atmospheric CO2 concentration, but also the effect of the occurrence of low water stress resulting from a decrease in soil water”
The same questions in other papers
drought · yield · Dactylis glomerata (cocksfoot)Positive and negative results
1 paper in the same direction as this paper · 9 in the opposite direction
- negative
- negative
- negative
7 papers more in this group
See all 11 papers →heat · yield · Dactylis glomerata (cocksfoot)Results agree
1 paper in the same direction as this paper
- positive
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.