Abstract
본 연구는 지구 온난화와 관련한 대응 대책 마련을 위해서 대기 온도 상승에 따른 주요 침엽수의 종자 발아 및 발아 후 유묘의 생존율 변화를 알아보고자 수행하였다. 소나무와 전나무를 대상으로 적외선등을 이용하여 대조구 보다 온난화 처리구의 대기 온도를 $3^{\circ}C$ 높게 유지하는 실외 실험적 온난화 처리를 실시하였다. 온난화 처리에 따른 대기 온도 상승으로 두 수종 모두 발아율이 높아지는 경향을 보였지만, 전나무에서만 유의적 차이가 나타났다. 소나무와 전나무 두 수종 모두 온난화 처리구가 대조구보다 평균발아일수는 유의적으로 감소하였으며, 온난화 처리구에서 높은 발아속도와 발아세를 보였다. 온도 상승과 토양 수분 감소에 따라 전나무 유묘의 고사율은 증가하였지만, 소나무는 온난화 처리에 따른 차이를 보이지 않았다. 향후, 지구 온난화에 따른 대기와 토양 온도 상승 및 토양 수분감소로 양묘과정에서 종자 발아 및 유묘 생존율의 변화가 예상되기 때문에 지구 온난화에 대응할 수 있는 양묘기술 개선이 필요할 것으로 판단된다. The purpose of this study was to investigate the effect of experimental warming using infrared lamps on seed germination and seedling survival rate of Pinus densiflora and Abies holophylla. The air temperature of warmed plots had been automatically maintained 3 higher than control plots. The percent germinations (%) of the two coniferous species were higher in warmed plots than in control plots, however a significant difference appeared only in A. holophylla. In addition, P. densiflora and A. holophylla showed the shorter mean germination time (days), higher germination rate ($seed{\cdot}day^{-1}$) and germination energy (%) in warmed plots than in control plots. A. holophylla showed a higher seedling mortality rate in the warmed plots than in control plots because of increased air and soil temperatures and decreased soil moisture. However, seedling survival rate of P. densiflora showed no significant difference by experimental warming. In the future, changed air and soil temperatures and soil moisture due to global warming will induce a variety of changes in seed germination and survival rate of tree species in nursery culture. Therefore, it is necessary to establish adaptation strategies that improve techniques in nursery culture against global warming.
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Claims 8
Claim · model-written summary
Experimental warming raised the percent germination of Pinus densiflora and Abies holophylla relative to control plots.
- Taxon
- Pinus densiflora and Abies holophylla
Pinus densiflora
Abies holophyllat0 - Treatment
- warmed plotse0
- Outcome
- percent germinations (%)e0
- Direction
- highere0
- Comparator
- control plotse0
- Setting
- Open-fieldt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pinus densiflora and Abies holophylla”
t1“Open-field Experimental Warming Using the Infrared Lamp”
e0“The percent germinations (%) of the two coniferous species were higher in warmed plots than in control plots, however a significant difference appeared only in A. holophylla”
Claim · model-written summary
Experimental warming significantly raised the percent germination of Abies holophylla relative to control plots.
- Taxon
- A. holophyllaAbies holophyllae0
- Treatment
- warmed plotse0
- Outcome
- percent germinations (%)e0
- Direction
- highere0
- Comparator
- control plotse0
- Setting
- Open-fieldt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Open-field Experimental Warming Using the Infrared Lamp”
e0“The percent germinations (%) of the two coniferous species were higher in warmed plots than in control plots, however a significant difference appeared only in A. holophylla”
Claim · model-written summary
Experimental warming shortened the mean germination time of Pinus densiflora and Abies holophylla.
- Taxon
- P. densiflora and A. holophyllaPinus densifloraAbies holophyllae1
- Treatment
- warmed plotse1
- Outcome
- mean germination time (days)e1
- Direction
- shortere1
- Comparator
- control plotse1
- Setting
- Open-fieldt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“P. densiflora and A. holophylla showed the shorter mean germination time (days), higher germination rate ($seed{\cdot}day^{-1}$) and germination energy (%) in warmed plots than in control plots”
t1“Open-field Experimental Warming Using the Infrared Lamp”
Claim · model-written summary
Experimental warming raised the germination rate of Pinus densiflora and Abies holophylla relative to control plots.
- Taxon
- P. densiflora and A. holophyllaPinus densifloraAbies holophyllae1
- Treatment
- warmed plotse1
- Outcome
- germination ratee1
- Direction
- highere1
- Comparator
- control plotse1
- Setting
- Open-fieldt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“P. densiflora and A. holophylla showed the shorter mean germination time (days), higher germination rate ($seed{\cdot}day^{-1}$) and germination energy (%) in warmed plots than in control plots”
t1“Open-field Experimental Warming Using the Infrared Lamp”
Claim · model-written summary
Experimental warming raised the germination energy of Pinus densiflora and Abies holophylla relative to control plots.
- Taxon
- P. densiflora and A. holophyllaPinus densifloraAbies holophyllae1
- Treatment
- warmed plotse1
- Outcome
- germination energy (%)e1
- Direction
- highere1
- Comparator
- control plotse1
- Setting
- Open-fieldt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“P. densiflora and A. holophylla showed the shorter mean germination time (days), higher germination rate ($seed{\cdot}day^{-1}$) and germination energy (%) in warmed plots than in control plots”
t1“Open-field Experimental Warming Using the Infrared Lamp”
Claim · model-written summary
Experimental warming raised the seedling mortality rate of Abies holophylla relative to control plots, with increased air and soil temperatures and decreased soil moisture given as the cause.
- Taxon
- A. holophyllaAbies holophyllae3
- Treatment
- warmed plotse3
- Outcome
- seedling mortality ratee3
- Direction
- highere3
- Qualifier
- because of increased air and soil temperatures and decreased soil moisturee3
- Comparator
- control plotse3
- Setting
- Open-fieldt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“A. holophylla showed a higher seedling mortality rate in the warmed plots than in control plots because of increased air and soil temperatures and decreased soil moisture”
t1“Open-field Experimental Warming Using the Infrared Lamp”
Claim · model-written summary
Experimental warming did not significantly change the seedling survival rate of Pinus densiflora.
- Taxon
- P. densifloraPinus densiflorae4
- Treatment
- experimental warminge4
- Outcome
- seedling survival ratee4
- Setting
- Open-fieldt1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“seedling survival rate of P. densiflora showed no significant difference by experimental warming”
t1“Open-field Experimental Warming Using the Infrared Lamp”
Claim · model-written summary
Nursery culture needs adaptation strategies that improve techniques against global warming for these conifers.
- Taxon
- Pinus densiflora and Abies holophyllaPinus densifloraAbies holophyllat0
- Outcome
- adaptation strategies that improve techniques in nursery culturee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pinus densiflora and Abies holophylla”
e5“it is necessary to establish adaptation strategies that improve techniques in nursery culture against global warming”
The same questions in other papers
heat · growth · Pinus densiflora (Japanese red pine)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →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.