Acta Scientiarum Naturalium Universitatis Pekinensis ›› 2015, Vol. 51 ›› Issue (6): 1112-1118.DOI: 10.13209/j.0479-8023.2015.121

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Spatiotemporal Variability in Water Cycle of Cropland in the North Part of Northern China Plain from 2002 to 2011

LI Pengfei, FENG Yao, ZHAO Xinyi   

  1. Laboratory for Earth Surface Processes (MOE), College of Urban and Environmental Science, Peking University, Beijing 100871
  • Received:2014-08-17 Online:2015-11-20 Published:2015-11-20
  • Contact: ZHAO Xinyi, E-mail: sh-zhao(at)


李鹏飞, 冯瑶, 赵昕奕   

  1. 教育部地表分析与模拟重点实验室, 北京大学城市与环境学院, 北京 100871
  • 通讯作者: 赵昕奕, E-mail: sh-zhao(at)
  • 基金资助:
    国家自然科学基金(41471073, 41130534)资助


Based on the observed temperature, precipitation, wind speed, soil moisture and other basic meteorological data in the north part of Northern China Plain from China Meteorological Administration, three major variables of water cycle: precipitation, soil moisture and water requirement on cropland are calculated. Besides, the water cycle model of cropland in the study area is built together with designed water shortage index to analyze the temporal and spatial variability in water shortage of cropland in the study area by ten-day intervals. Results suggest that the water shortage of cropland in the study area is serious through all growth period. The study area witnesses droughts in most months with sufficient moisture only in the mid July. Spring is the most serious period of droughts on cropland, and the droughts are more severe in central and southern of Hebei Province than that in other areas. Furthermore, the stress of water shortage on cropland in autumn is much relieved compared with that in spring. However, droughts in the northwest part of study area are extremely serious in autumn. Meanwhile, droughts in Hengshui area and western Beijing are the most serious through the whole crop growth stage. Relevant conclusions can provide references to regional water management and irrigation of cropland.

Key words: the north part of Northern China Plain, water cycle of cropland, water requirement, water shortage


利用华北平原北部气象站点实测气温、降水、风速等基本气象要素数据, 结合土壤相对湿度数据, 计算降水量、作物需水量和土壤水分变化量3个水分循环的核心变量, 构建华北平原北部农田水循环模型, 设计缺水量指标, 并分析2002—2011年华北平原北部农田缺水量的逐旬时空变化。结果表明: 华北平原北部的农田在整个作物生长阶段严重缺水, 大多数月份所有地区缺水, 仅7月中旬自然水分较为充足; 春季是华北平原北部农田干旱最严重的时期, 以河北中南部地区春旱最为严重; 秋季干旱程度相比春季较轻, 干旱相对严重的区域位于研究区域西北部; 衡水以及北京西部地区在整个作物生长阶段均严重缺水, 是干旱最为严重的区域。研究结果可为研究区水分利用管理及农田灌溉提供参考。

关键词: 华北平原北部, 农田水循环, 需水量, 缺水量

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