Tradeoffs and synergies between food security and forest cover in
Brazilian drylands
Abstract
Global food demand is expected to increase in the next decades pushing
agricultural expansion and deforestation. However, food production in
agricultural lands is just one dimension of food security, to which
forest goods and services also contribute. In this paper, we aimed to
explore the relationship between forest cover and food security. We
hypothesised that food security is improved by both human-made and green
infrastructure combined. To test this relationship, we explore the
relationships between forest cover and a multidimensional index of food
security that included both socioeconomic and natural variables taken
from Brazilian official databases for 1,141 municipalities of the
Brazilian Caatinga (a seasonally tropical dry forest). The index was
formed by 12 principal components axes (12 PCs) and we found that
financial poverty (PC 1) and economic inequality (PC 2) were the main
determinants of food insecurity in Caatinga. We found that lowest food
security values were found in two contrasting contexts: one is
represented by poor and unequal municipalities with high forest cover
while the other refers to poor and less unequal municipalities but with
little forest cover. Municipalities with intermediate levels of forest
cover had slightly higher food security, a consistent pattern across
time (2006 and 2017). Win-win scenarios where both forest cover and food
security increased with time were almost as common as lose-lose
situations (25% and 22% respectively). This suggests a sort of balance
between forests and human-made land uses and reinforces that natural
capital contributes to food security. Zero-hunger is a main issue for
sustainable development goals and our results adds to the notion that
both sustainable use of forests and socioeconomic improvements must
coexist rather than being treated as antagonistic policies.