Influence Of Some Forest Tree Species On Soil PH, Organic Carbon And Available Phosphorus

ABSTRACT

The influence of different forest tree species (A. macrophylla, P. macrophya, G. arborea, I. wombolu, T grandis, and P. carbaea) on soil pH, organic carbon and phosphorus were studied. From the results, there was a decrease in soil pH measured in water under Pentacethra macrophylla and Anthonata compared to the no-tree control. Organic carbon content of soils under the tree species were statistically similar to the control. Available phosphorus was significantly higher in the control plot than in soil under pentacethra and Irving/a. In conclusion, these variation in soil pH, and phosphorus may be due to root exudates, quality and quantity of organic matter decomposition under the various tree species.