Vorlesung "Umweltphysik I“ - Institut für Umweltphysik

Irrigated
•
•
•
agriculture
produces 40 % of the
world's food on 20% of
the agricultural area
accounts for 70% of the
water withdrawals (3.000
of the available 13.000
km3 /a)
regionally overutilises
surface and ground water
Hidden
problem:
non-sustainability
Food Security: Irrigation
18