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Effects of exotic tree plantations of teak ( Tectona grandis ) and gmelina ( Gmelina arborea ) on a forest soil in south‐western Nigeria
Author(s) -
Aborisade K.D.,
Aweto A.O.
Publication year - 1990
Publication title -
soil use and management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.709
H-Index - 81
eISSN - 1475-2743
pISSN - 0266-0032
DOI - 10.1111/j.1475-2743.1990.tb00796.x
Subject(s) - gmelina , tectona , nutrient , environmental science , agroforestry , agronomy , soil carbon , forestry , total organic carbon , soil water , biology , botany , soil science , geography , ecology
. The properties of soil under 15‐year‐old plantations of gmelina ( Gmelina arborea ) and teak ( Tectona grandis ) were compared with logged forest soil in south‐western Nigeria. The soil was significantly denser in the 0–10 cm layer of plantation soil and total porosity less than that of forest soil. Organic carbon was significantly greater in the 0–10 cm layer of forest soil. Similarly, the concentrations of total N, exchangeable Ca, Mg and K were greater under forest soil, but the concentrations of available P were similar under all three ecosystems. The smaller organic carbon and nutrient content of plantation soil is mainly due to its more open organic matter and nutrient cycles and nutrient immobilization in the fast‐growing exotics.