Effect of field groundwater table contro
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Xiugui Wang; P. H. J. Hollanders; Shaoli Wang; Shuxing Fang
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Article
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2004
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John Wiley and Sons
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English
β 315 KB
π 1 views
## Abstract The Qingtongxia Irrigation District (QID) is one of the key agricultural bases in the Yellow River Basin. It is located in the upstream part of the Yellow River in the north of China and covers about 350β000 ha of farmland. The climate in the district is arid and semiβarid. The annual a