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Biodiversity field trials to inform reforestation and natural resource management strategies along the African Great Green Wall in Senegal

New Forests volume 49, pages 341–362 (2018)Cite this article

Abstract

Forest restoration is carried out with varying objectives in mind, one of which is biodiversity conservation. The present study examines the extent by which tree biodiversity could potentially be maximized in the context of the pan-African Great Green Wall for the Sahara and the Sahel Initiative (GGW). Towards this end, ten indigenous tree species were selected for study in the Ferlo region in Northern Senegal based on previous ethnobotanical studies in the zone. The species included Acacia senegal, Acacia nilotica, Acacia tortilis subsp. raddiana, Acacia seyal, Adansonia digitata, Balanites aegyptiaca, Dalbergia melanoxylon, Sclerocarya birrea, Tamarindus indica and Ziziphus mauritiana. Germination experiments were first performed in the laboratory on seed lots from Senegal, Burkina Faso, Kenya, and South Africa prior to in situ sapling production in the nursery in Northern Senegal situated along the GGW. A split plot field design was employed and the effects of seed provenance (two per species) and the addition of organic fertilizer at the timing of planting were determined. Over the course of the 2 year experimental period, the newly planted trees, in addition to the naturally regenerating woody vegetation and herbaceous grasses were monitored in the fenced-in experimental field plot. Of the ten species, only B. aegyptiaca, A. tortilis subsp. raddiana, and S. birrea exhibited moderate survival rates. The effects of provenance and fertilizer addition were sporadic and species-dependent. Natural regeneration of woody species was abundant albeit characterized by low biodiversity whereas herbaceous grass species showed extensive biodiversity, especially under tree canopies as compared to open areas.

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References

  • African Union and Pan African GGW Agency (2010) Harmonised regional strategy for implementation of the “Great Green Wall Initiative of the Sahara and the Sahel”. http://www.greatgreenwallinitiative.org/sites/default/files/publications/harmonized_strategy_GGWSSI-EN_.pdf. Accessed 22 Dec 2016

  • Akpo LE, Grouzis M (1996) Influence du couvert ligneux sur la régénération de quelques espèces ligneuses sahéliennes (Nord-Sénégal, Afrique occidentale). Webbia 50:247–263

    Article  Google Scholar 

  • Arbonnier M (2002) Arbres, arbustes et lianes des zones sèches de l’Afrique de l’Ouest. CIRAD – MNHN. Pony-sur-Yonne, France

  • Aubreville A (1949) Climats, forêts et désertification de l’Afrique tropicale. Société d’éditions géographiques, maritimes et coloniales, Paris, France

  • Barral H, Bénéfice K, Boudet G et al (1983) Les systèmes de production d’élevage au Sénégal dans la région du Ferlo: synthèse de fin d’études d’une équipe de recherches pluridisciplinaire. ORSTOM, Paris

    Google Scholar 

  • Barrett CB, Constas MA (2014) Toward a theory of resilience for international development applications. Proc Natl Acad Sci USA 111:14625–14630. https://doi.org/10.1073/pnas.1320880111

    CAS  Article  PubMed  PubMed Central  Google Scholar 

  • Boshier D, Broadhurst L, Cornelius J, Gallo L, Koskela J, Loo J, Petrokofsky G, St Clair B (2015) Is local best? Examining the evidence for local adaptation in trees and its scale. Environ Evid 4:20. https://doi.org/10.1186/s13750-015-0046-3

    Article  Google Scholar 

  • Brandt M, Mbow C, Diouf AA, Verger A, Samimi C, Fensholt R (2015) Ground- and satellite-based evidence of the biophysical mechanisms behind the greening Sahel. Glob Chang Biol 21:1610–1620. https://doi.org/10.1111/gcb.12807

    Article  PubMed  Google Scholar 

  • Breman H, Kessler JJ (1995) Woody plants in agro-ecosystems of semi-arid regions with an emphasis on Sahelian countries. Springer, Berlin

    Book  Google Scholar 

  • Ciccarese L, Mattsson A, Pettenella D (2012) Ecosystem services from forest restoration: thinking ahead. New Forest 43:543–560. https://doi.org/10.1007/s11056-012-9350-8

    Article  Google Scholar 

  • Davies J, Poulsen L, Schulte-Herbrüggen B, Mackinnon K, Crawhall N, Henwood WD, Dudley N, Smith J, Gudka M (2012) Conserving dryland biodiversity. International Union for Conservation of Nature, Gland

    Google Scholar 

  • Davies J, Robinson LW, Ericksen PJ (2015) Development process resilience and sustainable development: insights from the drylands of Eastern Africa. Soc Nat Resour 28:328–343. https://doi.org/10.1080/08941920.2014.970734

    Article  Google Scholar 

  • De Leeuw J, Njenga M, Wagner B, Iiyama M (2014) Treesilience: an assessment of the resilience provided by trees in the drylands of Eastern Africa. ICRAF, Nairobi

    Google Scholar 

  • Diallo A, Agbangba EC, Ndiaye O, Guissé A (2013) Ecological structure and prediction equations for estimating tree age, and dendometric parameters of Acacia senegal in the Senegalese semi-arid zone-Ferlo. Am J Plant Sci 4:1046–1053

    Article  Google Scholar 

  • Guissé A, Boëtsch G, Ducourneau A, Goffner D, Gueye L (2013) L’observatoire homme–milieux international Tessékére (Ohmi): un outil de recherche pour étudier la complexité des écosystèmes arides du Sahel. C R Biol 336:273–277

    Article  PubMed  Google Scholar 

  • Herrmann SM, Tappan GG (2013) Vegetation impoverishment despite greening: a case study from central Senegal. J Arid Environ 90:55–66. https://doi.org/10.1016/j.jaridenv.2012.10.020

    Article  Google Scholar 

  • ICSU, ISSC (2015) Review of the sustainable development goals: the science perspective. International Council for Science (ICSU), Paris

    Google Scholar 

  • Jacobs DF, Oliet JA, Aronson J, Bolte A, Bullock JM, Donoso PJ, Landhäusser SM, Madsen P, Peng S, Rey-Benayas JM, Weber JC (2015) Restoring forests: what constitutes success in the twenty-first century? New Forest 46:601–614

    Article  Google Scholar 

  • Kherief SN, Nouasria D, Salemkour N, Benchouk K, Delhamra M (2013) La mise en repos: une technique de gestion des parcours steppiques. Journal Algérien des Régions Arides, Numéro Spécial 12:115–123

    Google Scholar 

  • Le Houérou HN (1989) La variabilité de la pluviosité annuelle dans quelques régions arides du monde; ses conséquences écologiques. In: Bret B (ed) Les hommes face aux sécheresses IHEAL editions. IHEAL, Paris, pp 127–137

    Google Scholar 

  • Lebrun JP, Stork AL (1991–2015) Enumération des plantes à fleurs d’Afrique tropicale et tropical african flowering plants: ecology and distribution, vol. 1–7. Conservatoire et jardin botaniques de la ville de Genève, Geneva, Switzerland

  • Leprun JC (1971) Nouvelles observations sur les formations dunaires sableuses fixées du Ferlo nord occidental (Sénégal). ASEQUA 31:69–78

    Google Scholar 

  • Mbow C, Brandt M, Ouedraogo I, De Leeuw J, Marshall M (2015) What four decades of earth observation tell us about land degradation in the Sahel? Remote Sens 7:4048–4067. https://doi.org/10.3390/rs70404048

    Article  Google Scholar 

  • MEA, Millennium Ecosystem Assessment (2005) Ecosystems and human well-being: desertification synthesis. World Resources Institute, Washington DC

    Google Scholar 

  • Miehe S, Kluge J, Wehrden H, Retzer V (2010) Long-term degradation of Sahelian rangeland detected by 27 years of field study in Senegal. J Appl Ecol 47:692–700

    Article  Google Scholar 

  • Ndiaye O, Diallo A, Sagna MB, Guissé A (2013) Diversité floristique des peuplements ligneux du Ferlo, Sénégal. VertigO, vol 13, no 3

  • Niang K, Sagna MB, Ndiaye O, Thiaw A, Diallo A, Akpo LE, Saleh MM, Diome N, Diatta S, Faye MN, Gueye M, Guissé A, Goffner D (2014) Revisiting tree species availability and usage in the Ferlo region of Senegal: a rationale for indigenous tree planting strategies in the context of the Great Green Wall of the Sahara and Sahel Initiative. J Exp Biol Agric Sci 2:529–537

    CAS  Google Scholar 

  • Orwa C, Mutua A, Kindt R, Jamnadass R, Anthony S (2009) Agroforestree database: a tree reference and selection guide version 4.0. World Agroforestry Centre, Kenya

  • Ozer P, Hountondji Y-C, Niang AJ, Karimoune S, Manzo OL, Salmon M (2010) Désertification au Sahel: historique et perspectives. Bulletin de la Société Géographique de Liège 54:69–84

    Google Scholar 

  • Poupon H (1980) Structure et dynamique de la strate ligneuse d’une steppe sahélienne au nord du Sénégal. ORSTOM, Paris

    Google Scholar 

  • Radwan UAA (2007) Photosynthetic and leaf anatomical characteristics of the drought-resistant Balanites aegyptiaca (L.) Del. seedlings. Am Eurasian J Agric Environ Sci 2:680–688

    Google Scholar 

  • Reij C, Winterbottom R (2015) Scaling up regreening: six steps to success. A practical approach to forest and landscape restoration. World Resources Institute technical report. http://www.wri.org/sites/default/files/scaling-regreening-six-steps-success.pdf. Accessed 11 Nov 2016

  • Reij C, Tappan G, Smale M (2009) Agroenvironmental transformation in the Sahel: another kind of “Green Revolution.” IFPRI Discussion Paper. International Food Policy Research Institute, Washington, D.C.

  • Rockström J, Steffen WL, Noone K et al (2009) A safe operating space for humanity. Nature 461:472–475. https://doi.org/10.1038/461472a

    Article  PubMed  Google Scholar 

  • Roe D (2010) Linking biodiversity conservation and poverty alleviation: a state of knowledge review. CBD Technical Series no 55. https://www.cbd.int/doc/publications/cbd-ts-55-en.pdf. Accessed 23 Jan 2017

  • Roussel J (1995) Pépinières et plantations forestières en Afrique tropicale sèche: manuel à l’usage des ingénieurs et techniciens du reboisement. ISRA, Dakar

    Google Scholar 

  • Sackville Hamilton NR (2011) Is local provenance important in habitat creation? A reply. J Appl Ecol 38:1374–1376

    Article  Google Scholar 

  • Sendzimir J, Reij CP, Magnuszewski P (2011) Rebuilding resilience in the Sahel: regreening in the Maradi and Zinder, regions of Niger. Ecol Soc 16:1. https://doi.org/10.5751/ES-04198-160301

    Article  Google Scholar 

  • Sinare H, Gordon LJ, Enfors Kautsky E (2016) Assessment of ecosystem services and benefits in village landscapes—a case study from Burkina Faso. Ecosyst Serv 21:141–152

    Article  Google Scholar 

  • Sy O (2003) Dynamique des ressources en eau et évolution de la mobilité pastorale en zone sylvopastorale. Dissertation, Université Cheikh Anta Diop, Dakar, Senegal

  • Tbib A, Chaieb M (2004) La mise en défens des parcours en zones arides: avantages écologiques et obstacles socio-économiques. Cahiers Options Méditerranéennes 62:473–476

    Google Scholar 

  • UNCCD (1994) United Nations Convention to Combat Desertification in those countries experiencing serious drought and/or desertification, Particularly in Africa. UNEP-London. http://www2.unccd.int. Accessed 12 Nov 2016

  • Venter SM, Witkowski ETF (2013) Where are the young baobabs? Factors affecting regeneration of Adansonia digitata L. in a communally managed region of southern Africa. J Arid Environ 92:1–13. https://doi.org/10.1016/j.jaridenv.2012.12.010

    Article  Google Scholar 

  • Verte GM (2009) Choix des Espèces végétales et des Systèmes de Mise en valeur et de Suivi. http://www.doc-developpement-durable.org/file/ArbresFruitiers/FICHES_ARBRES/jujubier/ChoixEspecesPourGrandeMurailleVerte.pdf. Accessed 21 Feb 2017

  • Weston P, Hong R, Kaboré C, Kull CA (2015) Farmer-managed natural regeneration enhances rural livelihoods in dryland West Africa. Environ Manag 55:1402–1417. https://doi.org/10.1007/s00267-015-0469-1

    Article  Google Scholar 

  • Wezel A, Lykke AM (2006) Woody vegetation change in Sahelian West Africa: evidence from local knowledge. Environ Dev Sustain 8:553–567. https://doi.org/10.1007/s10668-006-9055-2

    Article  Google Scholar 

  • Zida D, Tigabu M, Sawadogo L, Oden PC (2008) Initial seedling morphological characteristics and field performance of two Sudanian savanna species in relation to nursery production period and watering regimes. Forest Ecol Manag 255:2151–2162

    Article  Google Scholar 

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Acknowledgements

The authors sincerely thank the Senegalese National Great Green Wall Agency for technical and logistical assistance. A warm thanks goes to Mbacké Fall and villagers for invaluable help in the nursery at Widou Thiengoly. We also thank Arnaud Ouedraogo who helped us to localize some of the “out-of-the-way” places in Burkina Faso from which our seeds came from. We thank Seyni Sané for help in statistical analyses. We thank Karine Ginoux and Sophie Drame who always insure that our field missions runs as smoothly as possible from an administrative standpoint. The authors acknowledge Institut Klorane and Fondation Véolia Environnement for financial support and a Ph.D. fellowship for T. I. Wade and to Labex DRIIHM (ANR-11-LABX-0010) (Laboratoire d’Excellence Dispositif de Recherche Interdisciplinaire sur les Interactions Hommes-Milieux) for M. Mauclaire’s PhD fellowship. We thank the CNRS Observatoire Hommes-Milieux Tessékéré (OHMi) and the Agence Nationale de la Recherche (French National Research Agency) (project Future Sahel – ANR-15-CE03-0001) for funding this research. Finally, we acknowledge the anonymous reviewers for their comments that have allowed us to improve the manuscript.

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Authors and Affiliations

  1. Département de Biologie Végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, BP 5005, Dakar, Senegal

    Thierno Ibrahima Wade, Ousmane Ndiaye, Maurice Sagna & Aliou Guissé

  2. Université de Bordeaux 3, Les Afriques dans le monde (LAM), IEP de Bordeaux, allée Ausone 11, Domaine universitaire, 33607, Pessac Cedex, France

    Margaux Mauclaire

  3. Institut Sénégalais de Recherche Agricole (ISRA), Laboratoire de Biochimie, Route des Hydrocarbures, Dakar, Senegal

    Babacar Mbaye

  4. UMI CNRS 3189 «Environnement, Santé, Sociétés», Faculté de Médecine Secteur Nord, 51 Blvd Pierre Dramard, 13344, Marseille Cedex 15, France

    Deborah Goffner

  5. Stockholm Resilience Centre, Stockholm University, 106 91, Stockholm, Sweden

    Deborah Goffner

Authors
  1. Thierno Ibrahima Wade
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  2. Ousmane Ndiaye
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  3. Margaux Mauclaire
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  4. Babacar Mbaye
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  5. Maurice Sagna
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  6. Aliou Guissé
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  7. Deborah Goffner
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Correspondence to Deborah Goffner.

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Wade, T.I., Ndiaye, O., Mauclaire, M. et al. Biodiversity field trials to inform reforestation and natural resource management strategies along the African Great Green Wall in Senegal. New Forests 49, 341–362 (2018). https://doi.org/10.1007/s11056-017-9623-3

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Keywords

  • Indigenous African trees
  • Biodiversity
  • Green Wall
  • Natural regeneration