Not only may mixed production systems be more resilient ecologically,
but they may support more resilient food systems. Buying
food using the income received from a single commodity
crop can lead to food insecurity for farm households when payments
are one-off, delayed or unpredictable in value, and as a
result tree commodity crops are sometimes viewed sceptically
within agricultural production-based strategies to improve nutrition
(FAO, 2012). For farmers who have too little land to cultivate
enough food to meet their needs, however, incomes from tree commodity
crops may be the only way to obtain sufficient food