Paper · 2016 · International journal of forest, soil and erosion

Declining Rainfall and Biophysical Degradation In Benin Center Cotton Zone

Enagnon Brice Sohou

10
claims
16
verbatim quotes
0
citations
3
research areas
—
Not open access

Abstract

Benin center cotton zone undergoes a significant drop of annual rainfall which induces a significant impact on agricultural yields and vegetation health. The issue of adaptation and resilience to rainfall variability is needed as a priority. This study is subject to answer these preoccupations amid comprehention different situations mentioned. Fieldwork, satellite image processing, and statistical analysis led to a better diagnosis. Indeed, rainfall isohyets decrease, and the aggressiveness of major rains favored stripping surface horizons. The iron oxide takes place, and the soil redness index significantly decreases. This favored the emergence and proliferation of Sahelian species whose Cyanotis Lanata on eroded soils. Indeed, a bio-climate change gradually moved. Frequent drought and water stress cause rapid drying up of the leaves, which explains the scope of increasing importance of vegetation fires in the dry season. In a word, the chlorophyll density on the landscape is declining. It is urgent to take significant steps.

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Claims 10

Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Annual rainfall dropped significantly in Benin center cotton zone.

Taxon
vegetatione0
Outcome
annual rainfalle0
Direction
drope0
Setting
Benin center cotton zonee0

Verbatim

e0

“Benin center cotton zone undergoes a significant drop of annual rainfall which induces a significant impact on agricultural yields and vegetation health”

✓ located verbatim in the source · abstract, characters 0–152 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

The rainfall drop significantly affected agricultural yields.

Outcome
agricultural yieldse0
Setting
Benin center cotton zonee0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Benin center cotton zone undergoes a significant drop of annual rainfall which induces a significant impact on agricultural yields and vegetation health”

✓ located verbatim in the source · abstract, characters 0–152 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

The rainfall drop significantly affected vegetation health.

Taxon
vegetatione0
Outcome
vegetation healthe0
Setting
Benin center cotton zonee0

Not reportedDirection

Verbatim

e0

“Benin center cotton zone undergoes a significant drop of annual rainfall which induces a significant impact on agricultural yields and vegetation health”

✓ located verbatim in the source · abstract, characters 0–152 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Rainfall isohyets decreased.

Taxon
vegetatione1
Outcome
rainfall isohyetse0
Direction
decreasee0

Verbatim

e0

“rainfall isohyets decrease”

✓ located verbatim in the source · abstract, characters 445–471 · show in text ↑
e1

“vegetation health”

✓ located verbatim in the source · abstract, characters 135–152 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Major rains favored stripping surface soil horizons.

Taxon
vegetatione1
Outcome
stripping surface horizonse0

Not reportedSettingDirection

Verbatim

e0

“the aggressiveness of major rains favored stripping surface horizons”

✓ located verbatim in the source · abstract, characters 477–545 · show in text ↑
e1

“vegetation health”

✓ located verbatim in the source · abstract, characters 135–152 · show in text ↑
Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

The soil redness index significantly decreased.

Taxon
vegetatione1
Outcome
soil redness indexe0
Direction
decreasese0

Verbatim

e0

“the soil redness index significantly decreases”

✓ located verbatim in the source · abstract, characters 579–625 · show in text ↑
e1

“vegetation health”

✓ located verbatim in the source · abstract, characters 135–152 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Sahelian species including Cyanotis Lanata proliferated on eroded soils.

Taxon
Cyanotis LanataCyanotis lanatae0
Outcome
emergence and proliferatione0
Setting
eroded soilse0

Not reportedDirection

Verbatim

e0

“emergence and proliferation of Sahelian species whose Cyanotis Lanata on eroded soils”

✓ located verbatim in the source · abstract, characters 644–729 · show in text ↑
Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Frequent drought and water stress caused rapid leaf drying.

Taxon
vegetatione1
Organ / stage
leavese0
Treatment
Frequent drought and water stresse0
Outcome
rapid drying up of the leavese0

Verbatim

e0

“Frequent drought and water stress cause rapid drying up of the leaves”

✓ located verbatim in the source · abstract, characters 777–846 · show in text ↑
e1

“vegetation health”

✓ located verbatim in the source · abstract, characters 135–152 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Rapid leaf drying was linked to increasing vegetation fires during the dry season.

Taxon
vegetatione1
Outcome
vegetation firese0
Qualifier
rapid drying up of the leavese0
Setting
dry seasone0

Verbatim

e0

“rapid drying up of the leaves, which explains the scope of increasing importance of vegetation fires in the dry season”

✓ located verbatim in the source · abstract, characters 817–935 · show in text ↑
e1

“vegetation health”

✓ located verbatim in the source · abstract, characters 135–152 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Landscape chlorophyll density is declining.

Taxon
vegetatione1
Outcome
chlorophyll density on the landscapee0
Direction
declininge0

Verbatim

e0

“the chlorophyll density on the landscape is declining”

✓ located verbatim in the source · abstract, characters 948–1001 · show in text ↑
e1

“vegetation health”

✓ located verbatim in the source · abstract, characters 135–152 · show in text ↑