groundwater is used maximum for irrigation. justify
Answers
Explanation:
Irrigation is the most important water use
sector accounting for about 70% of the global freshwater
withdrawals and 90% of consumptive water uses. While
the extent of irrigation and related water uses are reported
in statistical databases or estimated by model simulations,
information on the source of irrigation water is scarce and
very scattered. Here we present a new global inventory
on the extent of areas irrigated with groundwater, surface
water or non-conventional sources, and we determine the
related consumptive water uses. The inventory provides data
for 15 038 national and sub-national administrative units.
Irrigated area was provided by census-based statistics from
international and national organizations. A global model
was then applied to simulate consumptive water uses for
irrigation by water source.