| 基于昼夜水位波动法估算地下水蒸散发量的研究——以河西走廊典型绿洲为例 |
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| 引用本文： | 王京晶,刘鹄,徐宗学,王思佳.基于昼夜水位波动法估算地下水蒸散发量的研究——以河西走廊典型绿洲为例[J].干旱区研究,2021,38(1):59-67. |
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| 作者姓名： | 王京晶 刘鹄 徐宗学 王思佳 |
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| 作者单位： | 北京师范大学水科学研究院,北京 100875;城市水循环与海绵城市技术北京市重点实验室,北京100875;中国科学院西北生态环境资源研究院,中国生态系统研究网络临泽内陆河流域研究站,甘肃 兰州730000;中国科学院内陆河流域生态水文重点实验室,甘肃 兰州 730000;中国科学院西北生态环境资源研究院,中国生态系统研究网络临泽内陆河流域研究站,甘肃 兰州730000;中国科学院内陆河流域生态水文重点实验室,甘肃 兰州 730000;北京师范大学水科学研究院,北京 100875;城市水循环与海绵城市技术北京市重点实验室,北京100875 |
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| 基金项目： | 国家自然科学基金重点项目(41630861)资助。 |
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| 摘 要： | 使用多种昼夜水位波动法(White法、Hays法、Loheide法),计算了黑河中游荒漠绿洲过渡带地下水浅埋区生长季典型时段地下水蒸散发(ETg),并将估算结果同彭曼方法获得的潜在蒸散发(PET)、E-601测量的水面蒸发(ET0)和Φ20测量的水面蒸发(ET1)进行相关性分析。结果表明:在几种算法中,Hays法精度最高,其次是White法,Loheide法计算精度最低。因此,在计算逐日ETg时可优先使用Hays方法,并推荐使用ET0来检验计算精度。用Lo?heide法计算ETg可获得较高的精度(R=0.821,P<0.01),但具有明显时滞效应,滞后时间约为3 h。这些计算成果对当地水资源的合理配置与可持续开发利用具有一定的参考意义和应用价值。
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| 关 键 词： | 荒漠绿洲 地下水 昼夜水位波动法 地下水补给 |
Estimation of groundwater evapotranspiration with measured diurnal groundwater variations:A case study of typical oasis in Hexi Corridor |
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| WANG Jingjing,LIU Hu,XU Zongxue,WANG Sijia.Estimation of groundwater evapotranspiration with measured diurnal groundwater variations:A case study of typical oasis in Hexi Corridor[J].Arid Zone Research,2021,38(1):59-67. |
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| Authors: | WANG Jingjing LIU Hu XU Zongxue WANG Sijia |
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| Institution: | (College of Water Sciences,Beijing Normal University,Beijing 100875,China;Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology,Beijing 100875,China;Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Linze Inland River Basin Research Station,Chinese Ecosystem Research Network,Lanzhou 730000,Gansu,China;Key Laboratory of Ecohydrology of Inland River Basin,Lanzhou 730000,Gansu,China) |
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| Abstract: | Daily groundwater evapotranspiration(ETg)was estimated for the shallow groundwater area of the new oasis in the middle reaches of the Heihe River basin using diurnal water level fluctuation methods(White,Hays,Loheide).The results were compared with the potential evapotranspiration(PET)estimated using Penman method,water surface evaporation(ET0)measured using E-601 pan,and water surface evaporation(ET1)measured usingΦ20,and the differences between ETg and PET(ET0 and ET1)were analyzed using Pearson correlation coefficient.The results showed that among these calculation methods,Hays method performed the best with the highest accuracy,followed by the White method,and the Loheide method performed the worst with the lowest accuracy.Therefore,Hays method is recommended for estimation of daily ETg and ET0 is recommended for testing the estimation accuracy.Loheide method showed high ETg accuracy(R=0.821,P<0.01)with approximate 3 hr time lag,which was also found in other areas of the Heihe River basin(old oasis,desert edge,shelterbelt).The results obtained in this study will be helpful and may offer scientific support for rational allocation,sustainable development,and utilization of regional water resources in the Heihe River basin. |
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| Keywords: | desert oasis groundwater level diurnal groundwater variation groundwater recharge |
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