Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2008.4346.4353Terminalia superba Plantations Grown on Deforested
Plots in Congo]]>Goma-TchimbakalaJ. MakossoS. 122008823A comparative study was carried out in Mayombe, between
the soil of natural forest and the soil under four Terminalia superba
plantations of 7, 12, 32 and 48 year old. In each plantation type and
natural forest composite soil samples were taken in 0-10, 10-20, 20-30,
30-40 and 40-50 cm layers. The goal was to assess the impact of reforestation
on soil organic matter and its biological characteristics. Statistically
differences between the sites were tested using the Analysis of Variance
(ANOVA). The results showed that there was a general decrease of soil
organic matter in the profile of all sites except in the 48 year old plantation
for total nitrogen. In the surface soil the carbon content and total nitrogen
were respectively, 22.2 mg g-1 and 1.56 μg g-1
in the forest. The carbon content was between 14.9 and 23.5 mg g-1
while total nitrogen was between 1.31 and 2.24 μg g-1
in the plantations. The microbial biomass carbon (Cmic) was 732 μg
g-1 soil in the forest, it varied between 461 and 740 μg
g-1 in the plantations. The metabolic quotient (qCO2)
was between 3.6 mg C-CO2 mg-1 Cmic day-1
and 4.8 mg C-CO2 mg-1 Cmic day-1 in plantations.
The qCO2 in forest was 3.6 mg C-CO2 mg-1
Cmic day-1.]]>Agnelli, A., F.C. Ugolini, G. Corti and G. Pietramellara,200133613620Anderson, T.H.,200398285293Anderson, T.H. and K.H. Domsch,198518189Anderson, T.H. and K.H. Domsch,19932 (qCO2) as a specific activity parameter to assess the effects of environmental conditions, such as pH, on the microbial biomass of forest soils.]]>25393395Bardgett, R.D. and A. Shine,199931317321Brams, E.A.,197135401414Brookes, P.C., A. Landman, G. Pruden and D.S. Jenkinson,198517837842Dominy, C.S., R.J. Haynes and R. Van Antwerpen,2002 36350356Freschet, G.T., D. Masse, E. Hien, S. Sall and J.L. Chotte,2008123175184Goma-Tchimbakala, J.,2003Terminalia superba Engler et Diels) in Congo: Comparison with a natural forest.]]>1180180Goma-Tchimbakala, J. and F. Bernhard-Reversat, 2006(Terminalia superba) and a natural tropical forest in Mayombe, Congo.]]>229304313Harmand, J.M.,19976246246Harmand, J.M. and B. Pity,20012001pp: 265-292pp: 265-292Insam, H. and K. Haselwandter,198979174178Jirka, A.M. and M.J. Carter,19754713971402Jaiyeoba, I.A.,19989207215Jaiyeoba, I.A.,2003709198Joergensen, R.G., T.H. Anderson and V. Wolters,1995Fagus sylvatica L.) forests.]]>19141147Joergensen, R.G. and T. Mueller,1996EN value.]]>283337Kassim, G., J.P. Martin and K. Haider,19924511061112Kotto-Same, J., P.L. Woomer, A. Moukam and L. Zapfack,199765245256Knoepp, J.D., D.C. Coleman, D.A. Crossley and J.S. Clark,2000138357368Lu, D., E. Moran and P. Mausel,200213331343Mao, D.M., Y.W. Min, L.L Yu, R. Martens and H. Insam,199224865872Paul, K.I., P.J. Polglase, J.G. Nyakuengama and P.K. Khanna,2002168241257Priess, J.A. and H. Fölster,200133503509Rasiah, V. and B.D. Kay,199568321329Rasiah, V., S.K. Florentine, B.L. Williams and M.E. Westbrooke,20041203545Sahani, U. and N. Behera,20011293105Salamanca, E.F., M. Raubuch and R.G. Joergensen,200221211229Saik, H., C. Varadachari and K. Gosh,1998198137145Vance, E.D., P.C. Brookes and D.S. Jenkinson,198719703707Wolters, V. and R.G. Joergensen,199123897902Xu, D.P., Z.J. Yang, B. Dell and M. Gong,20002000pp: 31-40pp: 31-40Yan, T.M., L.Z. Yang and C.D. Campbell, 2003115129138Yimer, F., S. Ledin and A. Abdelkadir, 2007242337342