Soil Survey Analysis Using Terrain Ruggedness and Normalized Difference Vegetation Index in Wafongo-Yola Terrain, Northeast Nigeria
I. S. Myina
Department of Soil Science, Modibbo Adama University of Technology, Yola, Nigeria
S. A. Gisilanbe
Department of Agronomy, Taraba State University, Jalingo, Nigeria
H. J. Philip *
Department of Agronomy, Federal University, Gashua, Yobe State, Nigeria
*Author to whom correspondence should be addressed.
Abstract
This study was aimed at soil survey analysis using terrain ruggedness and normalized difference vegetation index (NDVI) of Wafongo-Yola Terrain, Northeast Nigeria to investigate and characterize geographic bodies such as vegetation, soils and terrain which plays an important role in evaluating soils conditions for agricultural production. In agricultural, a regional reconnaissance soil survey is usually carried out to identify soils that may support agriculture. These surveys are hectic, time consuming, laborious and cost a fortune. Many of the land users in the Northeast of Nigeria are middle class to poor farmers who might not invest in such an expensive and time-consuming venture. The cost of such surveys are high, time consuming and laborious. In tackling these problems, a cost-effective remedy is recommended through the use of remote sensing data and analysis. The Terrain Ruggedness Analysis of the top-left and some portions of the top-right quadrant at a higher level of abstraction appeared homogeneously leveled. However, areas were the terrain is rough and higher levels might need management practices to control erosion hazards.
Keywords: Soil survey, terrain ruggedness, soil resources, landsat, vegetation index