Claim · model-written summary
Species richness of herbs increased by 31–37% on invaded ridges compared with uninvaded ridges.
- Taxon
- herbse0
- Treatment
- invaded ridges/riserse0
- Interactor
- A. adenophora
_2.jpg?width=60)
Ageratina adenophorae0weed - Outcome
- species richnesse0
- Direction
- increasede0
- Value
- 31–37%e0
- Comparator
- uninvaded ridgese0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_2.jpg?width=500)
Verbatim
e0“The total mean density of herbs (other than A. adenophora) in invaded ridges/risers decreased by 38–85% compared to uninvaded ridges, but species richness increased by 31–37%”
Title
Bhawna Negi; Kavita Khatri; Surendra Singh Bargali; et al. Sustainability 2023. doi:10.3390/su151410748
Other claims from this paper (13)
- Observation Crofton weed (A. adenophora) showed 95–100% crown cover throughout invaded ridges/risers of terraced fields.
- Observation Crofton weed had stem densities of 134–208 individuals per m2 on invaded ridges/risers.
- Observation Crofton weed had an average basal area of 0.15 cm2.
- Intervention effect Total mean density of herbs other than A. adenophora decreased by 38–85% on invaded ridges/risers compared with uninvaded ridges.
- Observation Soil nutrient availability was high across invaded ridges/risers and crop fields.
- Observation Average irradiance near invaded ridges was 1.8 ± 0.31%, much lower than 19.6 ± 1.80% near uninvaded ridges.
- Association Rice straw, root and grain yields near uninvaded ridges were reduced by 27%, 19% and 33% relative to the farthest distance.
- Association Rice straw, root and grain yields near A. adenophora-invaded ridges were reduced by 37%, 39% and 43% relative to the farthest distance.
- Association Soybean straw, root and grain yields near uninvaded ridges declined by 62%, 66% and 42% relative to the farthest distance.
- Association Soybean straw, root and grain yields near A. adenophora-invaded ridges decreased by 59%, 69% and 47% relative to the farthest distance.
- Association Rice harvest index near ridges was reduced by 7% (uninvaded) and 13% (invaded) relative to the farthest distance.
- Association Soybean harvest index increased by 15% (uninvaded) and 10% (invaded) ridges relative to the farthest distance.
- Observation The authors conclude that Crofton weed could suppress field crops and form a single dominant population in the invaded area.