Search claims · PlantClaims

Observationobservedoriginal resultmeasured

Claim · model-written summary

Total peat polyarene mass fraction decreased by an order of magnitude relative to forest-tundra peatlands.

Outcome: total mass fraction of polyarenese0
Direction: decreasee0
Value: an order of magnitudee0
Comparator: forest-tundra peatlandse0

Not reportedTaxon

Verbatim

e0
“a decrease in the total mass fraction of polyarenes in these peatlands by an order of magnitude in comparison with the forest-tundra peatlands”
✓ located verbatim in the source · abstract, characters 1116–1258

Title

Accumulation of Polyarenes in Plants of Peatlands on the Coast of the Barents Sea

E. V. Yakovleva; D. N. Gabov; A. N. Panyukov Eurasian Soil Science 2020. doi:10.1134/s1064229320110137

Other claims from this paper (9)

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

RUE fell by more than 80%.

Taxon: grasslandst0
Outcome: RUEe0
Direction: decreasee0
Value: more than 80 %e0

Verbatim

e0
“RUE responded to flash droughts within 10 days, with a decrease of more than 80 % in magnitude”
✓ located verbatim in the source · abstract, characters 1321–1415

t0
“grasslands”
✓ located verbatim in the source · title, characters 51–61

Title

Productivity response characteristics of different grasslands to flash drought and their relationship with drought tolerance

Xiaoxu Liu; Xiaoxu Liu; Xiaomin Liu; et al. Ecological Indicators 2024. doi:10.1016/j.ecolind.2024.111761

Other claims from this paper (12)

Association Flash drought affected grassland NPP most in summer.
Association Flash drought affected grassland RUE most in spring.
Association More frequent and intense flash droughts had greater vegetation impacts.
Observation Flash drought caused moderate negative NPP and RUE anomalies in over 90% of grasslands.
Observation The longest NPP response lag was two months.
Observation NPP anomalies persisted for nearly two months after flash drought.
Observation RUE was more sensitive to flash drought than NPP.
Observation RUE responded within ten days.
Association Highly drought-sensitive grasslands had shorter response durations, fewer anomalies, better recovery and greater drought tolerance.
Association Large NPP and RUE values were not associated with increased drought tolerance.
Observation Desert grasslands were the most drought tolerant.
Observation Meadow grasslands were least drought tolerant and at highest flash drought risk.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The decrease was greater under high than moderate utilization.

Taxon: Treet0
Outcome: tree species richness, tree species diversity, and carbon storagee1
Direction: greatere0
Comparator: moderate utilization regimese0
Setting: high utilizatione0

Verbatim

e0
“The magnitude of decrease was greater in high utilization compared to moderate utilization regimes”
✓ located verbatim in the source · abstract, characters 1393–1491

e1
“tree species richness, tree species diversity, and carbon storage”
✓ located verbatim in the source · abstract, characters 1326–1391

t0
“Tree”
✓ located verbatim in the source · title, characters 29–33

Title

Impact of Land Use Change on Tree Diversity and Aboveground Carbon Storage in the Mayombe Tropical Forest of the Democratic Republic of Congo

Opelele Omeno Michel; Ying Yu; Wenyi Fan; et al. Land 2022. doi:10.3390/land11060787

Other claims from this paper (11)

Association High utilization reduced tree species richness.
Association Moderate utilization reduced tree species richness.
Association High utilization reduced tree species diversity.
Association Moderate utilization reduced tree species diversity.
Association High utilization reduced carbon storage.
Association Moderate utilization reduced carbon storage.
Observation Biodiversity indices and carbon storage were high under low utilization.
Observation After more than ten undisturbed years, previously utilized fallow land could recover carbon storage.
Observation After more than ten undisturbed years, previously utilized fallow land could recover acceptable tree species biodiversity.
Association Recovered fallow land remained significantly different from the low utilization regime.
Recommendation The authors recommend regulating forest land utilization in Mayombe.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Lower fine-root sucrose concentration under long-term warming was related to lower A. odoratum abundance.

Taxon: A. odoratumAnthoxanthum odoratume0
Organ / stage: fine rootse0
Outcome: sucrose concentration in fine rootse0
Direction: decreasee0
Comparator: abundance of A. odoratume0

Verbatim

e0
“The decrease in sucrose concentration in fine roots in LTW was related to a decrease in the abundance of A. odoratum”
✓ located verbatim in the source · abstract, characters 1806–1922

Title

Influence of soil warming magnitude and duration on soluble sugar pool in fine roots and rhizomes of subarctic grasslands: Differences at species and plant community level adaptation

Biplabi Bhattarai; Andreas Richter; Dennis Metze; et al. Plant Stress 2024. doi:10.1016/j.stress.2024.100406

Other claims from this paper (14)

Observation R. acris had the highest soluble sugar concentrations in fine roots and rhizomes among three species.
Observation Rhizomes had higher total soluble sugars than fine roots in A. odoratum.
Observation Rhizomes had higher total soluble sugars than fine roots in Equisetum. spp.
Observation Fine roots had higher total soluble sugars than rhizomes in R. acris.
Intervention effect Soil warming did not affect total soluble sugars in Equisetum.
Intervention effect Soil warming did not affect total soluble sugars in R. acris.
Intervention effect Soil warming increased total soluble sugars in A. odoratum fine roots and rhizomes under medium-term warming.
Intervention effect Soil warming increased total soluble sugars in A. odoratum fine roots under long-term warming.
Intervention effect Medium-term warming did not affect community fine-root soluble sugar concentration.
Intervention effect Medium-term warming increased rhizome total soluble sugar concentration at community level.
Intervention effect Medium-term warming increased rhizome sucrose concentration at community level.
Association Rhizome soluble sugar concentrations correlated positively with grass abundance.
Intervention effect Medium-term warming decreased the fine-root total soluble sugar pool; biomass decline explained 70 % of that decline.
Intervention effect Long-term warming decreased the fine-root total soluble sugar pool, with lower concentration explaining 74 % of the decline.

Mechanismhypothesisoriginal resultbasis n/a

Claim · model-written summary

Slower lignin decomposition under tundra conditions may explain the peat polyarene pattern.

Outcome: total mass fraction of polyarenese0
Qualifier: slowed down decomposition of lignine0
Setting: tundrae0

Not reportedTaxon

Verbatim

e0
“a decrease in the total mass fraction of polyarenes in these peatlands by an order of magnitude in comparison with the forest-tundra peatlands. Presumably, this is related to a slowed down decomposition of lignin under tundra conditions.”
✓ located verbatim in the source · abstract, characters 1116–1353

Title

Accumulation of Polyarenes in Plants of Peatlands on the Coast of the Barents Sea

E. V. Yakovleva; D. N. Gabov; A. N. Panyukov Eurasian Soil Science 2020. doi:10.1134/s1064229320110137

Other claims from this paper (9)

“magnitude of decrease”

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