Growth of Eucalyptus tereticornis and Pinus caribaea at different sites in Northern Nigeria

• Published in: Forest ecology and management 1988, Vol.23 (4), p.261-272
• Main Authors: Adegbehin, J.O., Okojie, J.A., Nokoe, S.
• Format: Article
• Language: English
• Subjects: Agronomy. Soil science and plant productions; Artificial regeneration. Forest nurseries. Planting; Biological and medical sciences; Eucalyptus tereticornis; Forestry; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; Generalities. Agricultural and farming systems. Agricultural development; Generalities. Production, biomass, yield. Quality; Pinus caribaea
• ISSN: 0378-1127; 1872-7042
• DOI: 10.1016/0378-1127(88)90057-6

Trial plantings of exotic tree species commenced in the northern areas of Nigeria over 20 years ago. Based on data from permanent sample plots of Eucalyptus tereticornis and Pinus caribaea, two of the promising exotic tree species tried, growth studies involving development of top height and total volume production ( tvp) trends have led to the derivation of growth figures for each of the species. The results showed that, on an average site for E. tereticornis with a top height of 24.8m at a reference age of 15 years, a tvp of about 286 m 3/ha at the peak of mai (age 19) could be obtained, while for an average site for P. caribaea, with a top height of 23.4m at age 20, a tvp of about 726 m 3/ha at the peak of mai (age 30) could be obtained. The growth figures, which were compared with those obtained in other countries, are discussed in relation to the management of the species.