Abstract
The effect of tree clumps on soil characteristics was investigated in a humid savanna (Lamto, Côte d'Ivoire). Soil texture and field capacity were not significantly different under tree clumps compared to open grassland. On the other hand, bulk density was lower under tree clumps, likely due to a greater soil fauna activity under the trees. The pH, available phosphorus, cation exchange capacity, total carbon and total nitrogen contents were higher under tree clumps due to greater organic matter input beneath canopies. Potential soil respiration and mineral nitrogen accumulation were also enhanced, indicating a higher potential microbial activity under tree clumps. Soil water content was slightly lower beneath canopies (from July to November only between 0 and 10 cm depth) when soil moisture was above field capacity. During the other months, no significant difference was measured.
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References
Abbadie L and Lepage M 1989 The role of subterranean fungus comb chambers (Isoptera, Macrotermitinœ) in soil nitrogen cycling in a preforest savanna (Côte d'Ivoire). Soil Biol. Biochem. 21, 1067–1071.
Abbadie L and Lensi R 1990 Carbon and nitrogen mineralisation and denitrification in a humid savanna of West Africa (Lamto, Côte d'Ivoire). Acta Œcol. 11, 717–728.
Abbadie L, Lepage M and LeRoux X 1992a Soil fauna at the forest-savanna boundary: Role of the termite mounds in nutrient cycling. In Nature and Dynamics of Forest-Savanna Boundaries. Eds. P AFurley, JProctor and J ARalter pp 473–484. Chapman & Hall, London
Abbadie L, Mariotti A and Menaut J-C 1992b Independence of savanna grasses from soil organic matter for their nitrogen supply. Ecology 73, 608–613.
Anne P 1945 Dosage rapide du carbone organique des sols. Ann. d'Agron. 2, 162–172.
Baize D 1988 Guide des analyses courantes en pédologie. INRA. 172p. Paris.
Bate GC and Gunton C 1982 Nitrogen in the Burkea savanna. In Ecology of Tropical Savannas. Eds. B HWalker and B JHuntley. pp 498–513. Springer-Verlag, Berlin.
Bell R H V 1982 The effect of soil nutrient availability on community structure in Africa ecosystems. In Ecology of Tropical Savannas. Eds. B HWalker and B JHuntley. pp 193–216. Springer-Verlag, Berlin.
Belsky A J, Amundson R G, Duxbury J M, Rika S J, Ali A R and Mwonga S M 1989 The effects of trees on their physical, chemical, and biological environment in a semiarid savanna in Kenya. J. Appl. Ecol. 26, 1005–1024.
Ben-Shahar R 1991 Abundance of trees and grasses in a woodland savanna in relation to environmental factors. J. Veget. Sci. 2, 345–350.
Bernharad-Reversat F 1982 Biogeochemical cycle of nitrogen in a semi-arid savanna. Oïkos 38, 321–332.
Dancette C and Poulain J F 1969 Influence of Acacia albida on pedoclimatic factors and crop yields. African Soils 14, 143–184.
Delmas J 1967 Recherches écologiques dans la savane de Lamto (Côte d'Ivoire): Premier aperçu sur les sols et leur valeur agronomique. Terre et Vie3, 216–227.
Dommergues Y 1960 La notion de cœfficient de minéralisation do carbone dans les sols. Agron. Trop. XV, 54–60.
Dommergues Y 1968 Dégagement tellurique de CO2: Mesure et signification. Ann. Institut Pasteur 115, 627–656.
Dreschsel P, Glaser B and Zech W 1991 Effect of four multipurpose tree species on soil amelioration during tree fallow in Central Togo. Agrofor. Syst. 16, 193–202.
Duchaufour P 1965 Précis de pédologie. Masson, Paris. 481 p.
Dunham K M 1991 Comparative effects of Acacia albida and Kigelia africana trees on soil characteristics in Zambezi riverine woodlands. J. Trop. Ecol. 7, 215–220.
Feller C 1979 Une méthode de fractionnement granulométrique de la matière organique des sols: application aux sols tropicaux à texture grossière, tres pauvres en humus. Cahiers ORSTOM, série pédologie 17, 339–346.
Frost P, Medina E, Menaut J-C, Solbrig O, Swift M and Walker B 1986 Responses of savannas to stress and disturbance. Biology International (IUBS), special issue 10, 82 p.
Frost W E and Edinger S B 1991 Effects of tree canopies on soil characteristics of annual rangeland. J. Range Manage. 44, 286–288.
Goldstein G and Sarmiento G 1987 Water relations of trees and grasses and their consequences of the structure of savanna vegetation. In Determinants of Tropical Savannas. Ed. B HWalker. pp 13–38. IRL Press. Oxford.
Isichei A O and Muoghalu J I 1992 The effects of tree canopy cover on soil fertility in a Nigerian savanna. J. Trop. Ecol. 8, 329–338.
Jackson L E, Strauss R B, Firestone M K and Bartolome J W 1990 Influence of tree canopies on grasslands productivity and nitrogen dynamics in deciduous oak savanna. Agr., Ecosyst. Environ. 32, 89–105.
Joffre R 1987 Contraintes du milieu et réponses de la végétation herbacée dans les dehesas de la Sierra Norte (Andolousie, Espagne). Thesis, U.S.T.L., Montpellier.
Jones M J 1973 The organic matter content of the savanna soils of West Africa. J. Soil Sci. 24, 42–53.
Kellman M 1979 Soil enrichment by neotropical savanna trees. J. Ecol. 67, 565–577.
Kennard D G and Walker B H 1973 Relationships between tree canopy cover and Panicum maximum in the vicinity of Fort Victoria Rhod. J. Agric. Res. 11, 145–153.
Kessler J J and Breman H 1991 The potential of agroforestry to increase primary production in the Sahelian and Sudanian zones of West Africa. Agrofor. Syst. 13, 41–62.
Knoop W T and Walker B H 1985 Interactions of woody and herbaceous vegetation in a southern african savanna. J. Ecol. 73, 235–253.
Lamotte M and Tireford J-L 1988 Le climat de la savane de Lamto (Côte d'Ivbire) et sa place dans les climats de l'Ouest africain. Trav. Cherch. Lamto. 8, 1–30.
Lensi R, Domenach A M, Abbadie L 1992 Field study of nitrification and denitrification in a wet savanna of West Africa (Lamto, Côte d'Ivoire). Plant and Soil 147, 107–113.
Lepage M 1983 Structure et dynamique des peuplements de termites tropicaux. Acta Œcol., Œcol. Gener. 4, 65–87.
Lepage M, Abbadie L, Mariotti A 1993 Food habits of sympatric termite species (Isoptera, Macrotermitinœ) as determined by stable carbon isotope analysis in a Guinean savanna (Lamto, Côte d'Ivoire). J. Trop. Ecol. 9 (In press).
Martin A, Mariotti A, Balesdent J, Lavelle P and Vuattoux R 1990 Estimate of organic matter turnover rate in a savanna soil by 13C natural abundance measurements. Soil Biol. Biochem. 22, 517–523.
Meiklejohn J 1968 Numbers of nitrifying bacteria in some Rhodesian soils under natural grass and imposed pastures. J. Appl. Ecol. 5, 291–300.
Menaut J-C 1974 Chute de feuilles et apport au sol de litière par les ligneux dans une savane préforestière de Côte d'Ivoire. Bull. Ecol. 5, 27–39.
Menaut J-C 1983 The vegetation of African savannas. In Tropical Savannas. Ed. FBourlière. pp 109–149. Elsevier, Amsterdam.
Menaut J-C and César J 1979 Structure and primary productivity of Lamto savanas, Ivory Coast. Ecology. 60, 1197–1210.
Menaut J-C, Gignoux J, Prado C and Clobert J 1990 Tree community dynamics in a humid savanna of the Côte d'Ivoire: Modelling the effects of fire and competition with grass and neighbours. J. Biogeom. 17, 471–481.
Ovalle C and Avendaño J, 1988 Interactions de la strate ligneuse avec la strate herbacée dans les formations d'Acacia caven (Mol.) Hook. et Arn. au Chili. II. Influence de l'arbre sur quelques éléments du milieu: microclimat et sol. Acta Œcol., Œcol. Plant. 9, 113–134.
Scholes R J 1987 Response of three semi-arid savannas on contrasting soils to the removal of the woody component. Thesis, University of Witwatersrand, Johannesburg.
Walter H 1971 Natural savannas. In Ecology of tropical and subtropical Vegetation. Oliver and Boyd, Edinburgh. 237 p.
Weltzin J F and Coughenour M B 1990 Savanna tree influence on understory vegetation and soil nutrients in northwestern Kenya. J. Veget. Sci. 1, 325–334.
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Mordelet, P., Abbadie, L. & Menaut, J.C. Effects of tree clumps on soil characteristics in a humid savanna of West Africa (Lamto, Côte d'Ivoire). Plant Soil 153, 103–111 (1993). https://doi.org/10.1007/BF00010549
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DOI: https://doi.org/10.1007/BF00010549