Estimation Of Available Water Resources And Potential Irrigation
Land Area In Asia
Author(s)
K. Okamoto. S. Shindo & H. Kawashima
Abstract
Estimation of available water resources and
potential irrigation land area in Asia
K. Okamotol, S. shindo' & H. ~awashima~
1 National Institute for Agro-Environmental Sciences, Japan
2 Graduate School of Agricultural and Life Sciences,
University of Tokyo, Japan
Abstract
At present, one-half of the world's population lives in Asia. The population in
Asia is expected to grow continuously. It is feared that water resources would
become scarce. Will the Asian farmers always have sufficient water to
cultivate rice? Focusing on rice-cropping zones in Asia, available water
resources for cultivating rice in a typical rice-cropping season were calculated.
The potential irrigation land area under the present climatic conditions was
also evaluated. It was found that water resources in Southeast Asia are
abundant in the first rice-cropping season but not in the second rice-cropping
season, and those in South Asia are scarce. It would be necessary to efficiently
utilize the water resources for rice croppi
Keywords
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