• Geography
  • Published 2003

Choosing appropriate index age for estimating site index of Gmelina arborea timber plantations in Oluwa forest reserve

@inproceedings{Onyekwelu2003ChoosingAI,
  title={Choosing appropriate index age for estimating site index of Gmelina arborea timber plantations in Oluwa forest reserve},
  author={Jonathan C. Onyekwelu},
  year={2003}
}
The timber production potential of a given site (site quality) is measured by the site index, which is defined as the dominant height of a stand at an index age. A study was undertaken to investigate the appropriate index age for site index determination of Gmelina arborea timber plantations in Oluwa forest reserve in south-western Nigeria, managed on 20 years rotation. Data for the study were collected from 36 temporary sample plots of 25 m x 25 m in plantations of 5 to 25 years. The results… CONTINUE READING