Effects of soil erosion on children's caloric intake among corn-producing households, Davao Region, Philippines
2016
Alviola, P.A., IV | Tugay, R., Jr. | Alvarez, Y.G. | Sarmiento, J.M. | Laorden, N. | Oponda, N.
Soil erosion is a constant challenges to farm productivity and profitability. However, extending the effects to food expenditure and children's nutrition is yet to be explored. In this research, an attempt was made to establish the path linking soil erosion to children's calorie intake levels. Using the geo-coordinates of Mindanao soil erosion areas from the Department of Agriculture-Bureau of Agricultural Research (DA-BAR), Geographic Information System (GIS) was used to identify the research sites for corn producing households in Davao region. A total of 125 samples were analyzed. A 24-hour food-frequency recall survey was conducted and conversion of food consumption to calorie equivalent was performed using the USD National Nutrient Database for Standard Reference. ANOVA was used to compare the mean differences of varying degrees of soil erosion in terms of productivity, food expenditure, and calorie intake. Structural equation modeling was used to perform the path analysis. Results indicate that corn farms in severe and moderately eroded areas have lower yield relative to no apparent/low erosion level. Results also suggest direct and indirect negative effect of soil erosion on farm output, food expenditure, and children's calorie intake. Finally, the effect of soil erosion can be mitigated through the adoption of soil conservation practices, providing an opportunity for non-farm livelihood, and empowering female heads of household to improve access to nutritious food.
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