Abstract
Summary In the Taï region of the Ivory Coast, mature forest is felled and burned and a crop of rice is grown; forest is then allowed to regenerate for 20 or more years before being cropped again. The top 10 cm of soil beneath a 21‐year‐old forest prior to felling contained 2000 viable seeds m −2 of mainly woody species of previous successional stages no longer represented in the vegetation. Seedling emergence was greater in full sunlight than under leaf canopy, especially for herbaceous species of open habitats. Burning destroyed almost half of the seeds, but overall germination of those that survived was advanced by about 2 weeks. Germination of some common pioneer species was enhanced by the fire. Provided that burning took place and the rice was planted immediately, vegetation arising from the seed bank did not present a problem. The density never exceeded 70 seedlings m −2 and little or no weeding was required. Species present at densities greater than 1 seedling 10 m −2 were all recorded in the seed bank.
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Claims 9
Claim · model-written summary
Soil beneath the 21-year-old forest held 2000 viable seeds per square metre, mainly woody species absent from current vegetation.
Verbatim
e0“The top 10 cm of soil beneath a 21‐year‐old forest prior to felling contained 2000 viable seeds m −2 of mainly woody species of previous successional stages no longer represented in the vegetation.”
Claim · model-written summary
Seedling emergence was greater in full sunlight than beneath leaf canopy, especially for open-habitat herbs.
Verbatim
e0“Seedling emergence was greater in full sunlight than under leaf canopy, especially for herbaceous species of open habitats.”
Claim · model-written summary
Burning destroyed almost half of the seeds.
Not reportedTaxonComparator
Verbatim
e0“Burning destroyed almost half of the seeds”
Claim · model-written summary
Burning advanced germination of surviving seeds by about two weeks.
Not reportedTaxonTreatmentComparator
Verbatim
e0“overall germination of those that survived was advanced by about 2 weeks”
Claim · model-written summary
Fire enhanced germination of some common pioneer species.
Not reportedComparator
Verbatim
e0“Germination of some common pioneer species was enhanced by the fire.”
Claim · model-written summary
After burning and immediate rice planting, seed-bank vegetation did not cause a cultivation problem.
- Taxon
- rice
Oryza sativae0 - Outcome
- vegetation arising from the seed bank did not present a probleme0
- Qualifier
- Provided that burning took place and the rice was planted immediatelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Provided that burning took place and the rice was planted immediately, vegetation arising from the seed bank did not present a problem.”
Claim · model-written summary
Seedling density never exceeded 70 per square metre.
Not reportedTaxon
Verbatim
e0“The density never exceeded 70 seedlings m −2”
Claim · model-written summary
Little or no weeding was required in the rice crop.
- Taxon
- riceOryza sativae1
- Outcome
- little or no weeding was requirede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“little or no weeding was required”
e1“a crop of rice is grown”
Claim · model-written summary
Every species exceeding one seedling per 10 square metres was recorded in the seed bank.
Verbatim
e0“Species present at densities greater than 1 seedling 10 m −2 were all recorded in the seed bank.”
The same questions in other papers
fire · yield · Oryza sativa (rice)Positive and negative results
5 papers in the same direction as this paper · 13 in the opposite direction
- positive
- positive
- positive
15 papers more in this group
See all 19 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.