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Article: Assessment of groundwater use by wheat (Triticum aestivum L.) in the Luancheng Xian Region and potential implications for water conservation in the Northwestern North China Plain.
- Article from:
- Journal of Soil and Water Conservation
- Article date:
- March 1, 2005
- Author:
CopyrightCOPYRIGHT 2005 Soil & Water Conservation Society. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Brown and Halweil (1998) reported that water shortages in China could shake world food security. With an area of 3.3 [10.sup.5] [km.sup.2] and a population of over 300 million people, the North China Plain is one of the worlds' major agricultural areas and produces about one-fifth of China's food demand. The annual precipitation in the region ranges from 500 to 650 mm (19.70 to 25.61 in) with 72 percent distributed from July to September. Wang et al. (2002) reported that the groundwater table dropped at a rate of 0.64 m [y.sup.-1] (2.1 ft [yr.sup.-1]) from 1964 to 1984 and 1.22 m [y.sup.-1] (4.0 ft [yr.sup.-1]) from 1984 to 1993 for the northeastern area of the North ...