Since the economy of the region is based on agriculture, subsistence depends on snowmelt and rainfall in the high mountains to sustain the health of the Sistan Basin and its wetlands.
Dado que a economía da rexión se basea na agricultura, a subsistencia depende do desxeo e as precipitacións nas altas montañas para manter a saúde da conca do Sistán e os seus humidais.