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The Effects of Tree Canopy Cover on Soil Fertility in a Nigerian Savanna

dc.contributor.authorIsichei, Augustine Onwuegbukiwe
dc.contributor.authorMuoghalu, Joseph Ikechukwu
dc.identifier.citationIsichei, Augustine Onwuegbukiwe and Muoghalu, Joseph Ikechukwu (1992). The Effects of Tree Canopy Cover on Soil Fertility in a Nigerian Savanna. Journal of Tropical Ecology, 8: 329 - 338.en_US
dc.description.abstractThe effect of tree canopy cover on soil properties was studied over three periods: mid-dry season (January), mid-growth period (August) and peak-growth period (October) in three 1 ha plots in savanna of north-west Nigeria. The objective was to find out whether tree canopies change the nutrient status of the soil under them relative to adjacent grasslands. Soils under tree canopies were found to have significantly higher levels of organic matter, calcium, magnesium, potassium, total exchangeable bases, cation exchange capacity and pH than those in open grasslands. Nitrogen and phosphorus were slightly higher in soils under tree canopies than those in the open grasslands. Trees 7m and above had more influence on soil properties than smaller trees. Differences in soil properties among the study plots were due to differences in their soil texture. Seasonal trends were observed in organic matter, carbon, nitrogen ratio, cation exchange capacity, phosphorus, calcium, sodium, total exchangeable cations and percentage base saturation.en_US
dc.subjectSoil fertilityen_US
dc.subjectTree canopyen_US
dc.subjectTree heighten_US
dc.titleThe Effects of Tree Canopy Cover on Soil Fertility in a Nigerian Savannaen_US

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