Regeneration of sylvopastoral lands in the Sahel zone under village management conditions

Kessler, J.J.; Slingerland, M.A.; Savadogo, Moumini

doi:10.1002/(sici)1099-145x(199803/04)9:2<95::aid-ldr289>3.0.co;2-y

Cited by 8 publications

(3 citation statements)

References 7 publications

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“…As a reaction to the loss of woody vegetation, managerial and restoration attempts in various forms were realized (e.g. Chapman & Chapman, 1996; Badejo, 1998; Kessler, Slingerland & Savadogo, 1998; Wezel & Rath, 2002), among others a total protection of selected areas by fencing (Hayashi, 1996). The elimination or reduction of environmental pressures on the degraded ecosystem is obviously the key starting point of vegetation regeneration.…”

Section: Introductionmentioning

confidence: 99%

Exclusion of livestock grazing and wood collection in dryland savannah: an effect on long‐term vegetation succession

Hejcmanová

Hejcman

Camara

et al. 2010

African Journal of Ecology

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Sahelian savannah faces increasing pressure from human activities, leading to its degradation. The aim of this study was to investigate the possibility of restoration of dryland savannah vegetation by the elimination of disturbance factors on the ecosystem. Is degraded dryland savannah vegetation able to be restored by means of natural succession? What is the timescale for its recovery? The study took place in the Bandia Reserve, 65 km south‐east of Dakar (Senegal), a unique site with two successional stages due to the elimination of uncontrolled exploitation. The vegetation structure of 15 years (15YRS) and 5 years (5YRS) after fencing was compared with vegetation exposed to continuous livestock grazing and wood collection outside the fenced area. Calculated by redundancy analysis, a significant effect of selected areas on the cover of all species was revealed and successional stage explained more than 45% of data variability. Perennial forbs, annual forbs and perennial grasses achieved the highest cover in 5YRS, woody species in 15YRS and annual grasses in the area outside of the fenced reserve. The dominant woody species Acacia seyal, A. ataxacantha, A. nilotica subsp. adstringens and Balanites aegyptiaca reconstituted the dense formation of Acacia bushland by means of natural succession in the 15YRS area.

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Section: Introductionmentioning

confidence: 99%

Exclusion of livestock grazing and wood collection in dryland savannah: an effect on long‐term vegetation succession

Hejcmanová

Hejcman

Camara

et al. 2010

African Journal of Ecology

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“…that can germinate and produce seed within 5–6 wk are common for fallow land in the Sahel. Natural vegetative regeneration of fallow land occurred slowly (Kessler et al., 1998) and the annual grasses Andropogon pseudopricus Stapf. and P. pedicellatum Trin.…”

Section: Research Resultsmentioning

confidence: 99%

“…Gmel shrub per 100 m 2 (Bielders et al, 2002). Woody shrubs of 0-0.5 m height can spread quickly from 0.2 to 16 plants m −2 in 4 yr (Kessler et al, 1998). The shrubs are often preserved through the cropping period and into the next fallow as crop growth is often best in the near vicinity of shrubs (Dossa et al, 2012(Dossa et al, , 2013 including leguminous Philiostigma reticulatum (DC.)…”

Section: 32mentioning

confidence: 99%

Perennial grass ley rotations with annual crops in tropical Africa: A review

Wortmann

Bilgo

Kaizzi³

et al. 2021

Agronomy Journal

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Rotation of grass ley with periods of annual crop production can be a means to increased farming system productivity, sustainability, and profitability. This research review offers interpretations of rotation research results for future African agriculture. Some rotation studies were with naturally generated and severely over-grazed fallows consisting primarily of annual plant species but other studies were with planted and well-managed perennial grass ley. Generally, the rotations increased annual crop yields with soil improvement. System benefits were similar or greater for ley compared with fallow with generally higher fodder yields with ley. Surface crusting of sandy soil in the Sahel is a major concern that may be worsened by fallow due to the deposition of clay and silt particles. Ley and fallow were terminated in all studies with inversion plow tillage with more tillage for subsequent crops while the rotation benefits may be greater with less tillage. Most studies did not have fertilizer use but annual crop yield response to fertilizer was greatly increased following ley in one study and with no system by fertilizer interaction effect in three studies. The profitability of ley rotations will vary with fodder demand which is rapidly increasing, especially near urban areas. Strip cropping, for example, alternate ley with annual crop strips of 5-20 m width and rotation cycles of 6-10 yr, may often be optimal Abbreviations: SOC, soil organic carbon.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Resource conservation strategies in agro-ecosystems of semi-arid West Africa

Wezel

Rath

2002

Journal of Arid Environments

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Regeneration of sylvopastoral lands in the Sahel zone under village management conditions

Cited by 8 publications

References 7 publications

Exclusion of livestock grazing and wood collection in dryland savannah: an effect on long‐term vegetation succession

Exclusion of livestock grazing and wood collection in dryland savannah: an effect on long‐term vegetation succession

Perennial grass ley rotations with annual crops in tropical Africa: A review

Resource conservation strategies in agro-ecosystems of semi-arid West Africa

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