TY  - JOUR
T1  - Relationship Between Soil Properties and Slope Position in a Humid Forest of South Western Nigeria
AU - , T.S. Babalola AU - , A.S. Fasina AU - , Tunku Peter 
JO  - Agricultural Journal
VL  - 2
IS  - 3
SP  - 370
EP  - 374
PY  - 2007
DA  - 2001/08/19
SN  - 1816-9155
DO  - aj.2007.370.374
UR  - https://makhillpublications.co/view-article.php?doi=aj.2007.370.374
KW  - Upland
KW  -valley bottom
KW  -middle slope
KW  -pedogenic process
KW  -soil properties
AB  - Relationship between slope position and soil properties was studied. Three profile pits were described at three topographic positions identified in the area, Upland (U1), Valley bottom (V) and upland (U2). Samples collected were analyzed for pH, Available phosphorus, Total Nitrogen, organic matter, Exchangeable cations, particle size distribution and percentage gravel. Trend of change and difference in soil properties down the  profile  depth  and across the landscapes position was also studied using graphs. Soil reaction is acidic (3.8-5.8) with low to moderate available phosphorus (3.38-15.75 ppm) and low total nitrogen (0.07-0.16g kg <SUP>1</SUP>). ECEC soil is on the average low (5.26-12.75 Cmol kg <SUP>1</SUP>). The trend of change and difference in soil properties across the slope shows that soil properties differs at the three slope positions (U1, V, U2). The soils in the  valley were fertile than the soils located in the upland. The study has thus further established the strong relationship between soil properties and slope position. The major pedogenic process observed to influenced the relationship between slope position and soil properties were mineral weathering, plinthization, erosion process, eluviation-illuviation of clay and oxidation-reduction process.
ER  -