Rainfall variability on the southern slope of the Bambouto mountain (West-Cameroon) and impact on the crop cultivation calendar

Kengni, Lucas; Mboussop, A.N.; Kopa, Adoua Njueya; Tankou, Christopher Mubeteneh; Tixier, Paul; Ngoupayou, Jules Rémy Ndam

doi:10.1016/j.jafrearsci.2019.03.020

Cited by 15 publications

(13 citation statements)

References 11 publications

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“…DR1b). High altitude grasslands cover the two landscapes that are both subject to sub-equatorial climate (Kengni et al, 2009) with ~1600 mm mean annual rainfall and 18.1°C of mean annual temperature.…”

Section: Geological and Morphological Settingmentioning

confidence: 99%

Differentiated Neogene bauxitization of volcanic rocks (western Cameroon): Morpho-geological constraints on chemical erosion

Momo

Beauvais

Tixier

et al. 2020

CATENA

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Lateritic weathering of Miocene volcanic rocks from western Cameroon highlands formed duricrusted bauxitic profiles. Two weathering profiles on ca. Ma basalt and ca. 16 Ma trachyte were studied using geochemical mass balance functions. Less mobile elements Ti and Zr were used as references to quantify volumetric change (strain, ε), element transfer rate (τ) and geochemical mass transfers during the bauxitization process of basalt and trachyte. Conversion of parent rocks to kaolinite and goethite rich saprolites evolved to Al-Fe rich bauxites, mostly composed of gibbsite and iron oxy-hydroxides (goethite and hematite). However, formation of Al-Fe bauxitic profiles required higher Si leaching on trachyte than on basalt. Our results document that chemical weathering of a larger thickness of trachyte than basalt has been required to form a unit meter of weathering profile, implying differential rates of rock chemical erosion and topographic decay of landscapes. Rates of chemical erosion and formation of lateritic weathering profiles in western Cameroon have been mostly controlled by drainage conditions and volcanic rocks composition (mostly SiO 2 content differences), that also resulted in contrasted landscapes evolution during the Neogene.

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Section: Geological and Morphological Settingmentioning

confidence: 99%

Differentiated Neogene bauxitization of volcanic rocks (western Cameroon): Morpho-geological constraints on chemical erosion

Momo

Beauvais

Tixier

et al. 2020

CATENA

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“…Precipitation and annual temperatures are respectively 2429 mm and 24˚C in Santchou [30], 1517 mm and 20˚C in Bandjoun [31], 1764 mm and 23˚C in Balatchi [32]. Hydromorphism characterizes the main pedogenetic process in Santchou, more particularly in lowlands [33].…”

Section: Biophysical Description Of the Study Areamentioning

confidence: 99%

Relationship between Selected Soil Physico-Chemical Characteristics and Mycorrhizal Status under <i>Triumfetta cordifolia</i> in the Cameroon Western Highlands

Ngnipa¹,

Tabi²,

Adamou³

et al. 2021

OJSS

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There is limited information on the pedological requirements of Triumfetta cordifolia. A starting point for establishing such information requires knowledge on the growing environment of the species. The aim of this study was to assess the physicochemical properties and mycorrhizal status in the rhizosphere of Triumeffa cordifolia. Soil and root samples from the rhizosphere of T. cordifolia were collected from three localities (Santchou, Bandjoun, and Ba-

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“…A dry season that extends from November to March and a wet one from April to October characterize the climate of Mount Bamboutos. The average annual rainfall is 1,918 mm and the average temperature is 18.9 • C at an elevation of 2,700 m (Kengni et al, 2009). Crop fields and eucalyptus plantations characterized the two sites sampled on the Bamboutos Mountain.…”

Section: Study Sitesmentioning

confidence: 99%

Patterns of Bat Diversity in an Undisturbed Forest and Forest Mosaic Habitats of the Afromontane Forest Biome of Western Cameroon

et al. 2021

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Anthropogenic activities continue to degrade natural montane ecosystems globally. Bats communities are altered by these changes. We analyzed how bats are affected by human-induced habitat changes by comparing the bat species diversity and functional diversity in undisturbed forest habitats and disturbed forest habitats of the Afromontane biome of Cameroon. We recorded 244 individuals from 13 species in the undisturbed forest, while 233 individuals from 16 species were recorded in the disturbed forest. Bat diversity was higher in disturbed habitats (D = 0.84) than undisturbed habitats (D = 0.67). Jackknife 1 species richness estimator suggests 21.53 species for the disturbed forest and 19.30 in the undisturbed forest. Closed-space forager insectivorous bats made up nearly half of the species in the undisturbed forest, but this dropped to 25% in the disturbed forest, meanwhile, edge-space foragers increased in the disturbed forest. Bat community analyses by ordination revealed a distinct bat community composition between the two forest types, demonstrated as a significant difference in diversity between the two forest types. The distribution of Rousettus aegyptiacus, Myonycteris angolensis, Hipposideros cf. ruber, and Micropteropus pusillus contribute the most to the difference in bat community composition between the two forest types. Edge and open-space species were likely to benefit from additional resources provided by the disturbed area, by expanding their range and distribution. However, this may not compensate for the decline in the population of forest species caused by the loss of pristine forests, thus measures to conserve montane forest remnants should be of utmost significance.

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Rainfall variability on the southern slope of the Bambouto mountain (West-Cameroon) and impact on the crop cultivation calendar

Cited by 15 publications

References 11 publications

Differentiated Neogene bauxitization of volcanic rocks (western Cameroon): Morpho-geological constraints on chemical erosion

Differentiated Neogene bauxitization of volcanic rocks (western Cameroon): Morpho-geological constraints on chemical erosion

Relationship between Selected Soil Physico-Chemical Characteristics and Mycorrhizal Status under <i>Triumfetta cordifolia</i> in the Cameroon Western Highlands

Patterns of Bat Diversity in an Undisturbed Forest and Forest Mosaic Habitats of the Afromontane Forest Biome of Western Cameroon

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Rainfall variability on the southern slope of the Bambouto mountain (West-Cameroon) and impact on the crop cultivation calendar

Cited by 15 publications

References 11 publications

Differentiated Neogene bauxitization of volcanic rocks (western Cameroon): Morpho-geological constraints on chemical erosion

Differentiated Neogene bauxitization of volcanic rocks (western Cameroon): Morpho-geological constraints on chemical erosion

Relationship between Selected Soil Physico-Chemical Characteristics and Mycorrhizal Status under &lt;i&gt;Triumfetta cordifolia&lt;/i&gt; in the Cameroon Western Highlands

Patterns of Bat Diversity in an Undisturbed Forest and Forest Mosaic Habitats of the Afromontane Forest Biome of Western Cameroon

Contact Info

Product

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Relationship between Selected Soil Physico-Chemical Characteristics and Mycorrhizal Status under <i>Triumfetta cordifolia</i> in the Cameroon Western Highlands