Climate change stressors affecting household food security among Kimandi-Wanyaga smallholder farmers in Murang’a County, Kenya

Abstract

Abstract Climate change hazards including droughts and floods are adversely affecting crop productivity and food security among Kenyan smallholder farmers. This article analyzes rainfall and temperature change effects on household food security in Kimandi-Wanyaga, in Murang’a County, Kenya. Both the meteorological and the community perceptions were analyzed. Monthly rainfall and temperature data for Thika Meteorological Station were analyzed for trends using MAKESENS procedure. The community perceptions data obtained through household survey, key informant interviews, and focus group discussions were analyzed using Statistical Package for Social Sciences (SPSS) and content analysis. The study hypotheses were tested using chi-square tests. The community perceived inadequate rainfall during crop growth (79%), reduced rainfall intensity (77%) and erratic onset and cessation of seasonal rainfall (73%) had interrupted their crop productivity. These disagreed with MAKESENS rainfall trends that showed statistically insignificant rainfall variability (α > 0.1). The community’s warmer temperature perceptions agreed with observed rising maximum temperature trend at 0.001 significance level. This study observed a significant relationship between the community’s perceived local rainfall and temperature changes, and household food security. For robust and strategically designed climate policies and programs for food security, governments need to communicate to policy makers the perceptions of smallholder farmers involved in autonomous climate adaptation.