Local Theories on Soil Formation and Classifications by Farming Communities of Semi-Arid Areas of Katsina State, Nigeria

Abstract

This paper examines local theories of soil formation and indigenous system of soil classification of farming communities of semi-arid areas. Participatory rural appraisal approach, key informant interview and focus group discussion were used in the data collection. It was found that the local farmer are observing how soil is formed through gradually operating process of weathering and the influence of wind, water and other climatic elements in  transportation, deposition  and decomposition of the weathered materials. The farmers used soil colour, soil texture and fertility level to classify their soil. Four textural classes and fifteen soil types were identified; twelve have colour and three textural names. It was concluded that local perspectives on soil formation and indigenous system of soil classification will enhance the quality of land use planning if properly collated and standardized for project planning in the area.

Keywords: soil formation, soil classification, soil colour, soil texture, soil fertility, indigenous, local, semi-arid areas.