Sustainable Rice Cropping And Water Resources In Asia
Author(s)
K. Okamoto, S. Shindo & H. Kawashima
Abstract
Sustainable rice cropping and water resources
in Asia
K. ~kamoto', S. shindo' & H. ~awashima~
'~ational Institute for Agro-Environmental Sciences, Japan
2 Graduate School of Agricultural and Life Sciences,
University of Tokyo, Japan
Abstract
One-half of the population in the world lives in Asia. The population of Asia is
predicted to grow in the first half of the 21st century. An increase in unit yield
and expansion of irrigated fields are solutions to feed the growing population
of Asia. At present, it is suggested that agricultural activities sustain an
ecosystem. Is such sustainable development possible? Here focused on major
river basins with rice-cropping zones from East to South Asia. The amount of
available water for cultivating rice and the potential irrigation land area under
the present climatic conditions were estimated. Then possible changes in water
quality in the future were discussed. The data include those on the course of a
river, land-uselland-cover classification, population
Keywords
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