... ； 黄淮海平原；水分利用效率；氮素利用效率；模拟；地理信息系统 [gap=2064]Key words: Winter wheat; Huang-Huai-Hai plain; Water use efficiency; Nitrogen use efficiency; Simulation; GIS ..
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鲁西北地区是黄淮海平原中低产田渍涝洼地的主要分布区之一。
The low-lying saline-alkali wetland is one of main type of low yield fields in Huang-Huai-Hai Plain.
滹沱河是黄淮海平原北部山前冲、洪积扇上具有代表性的河流之一。
Hutuo river is one of the typical rivers flowing on the alluvial fan at the north part of the Great Plain of north China.
建国以来黄淮海平原粮食单产持续增长，近年来仍然高于全国同期单产增速。
Grain yield per unit area increased continually during the past near 50 years in HuangHuai -hai plain, and its increasing speed in recent years still kept higher than the average of all the country.
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