| Cite this article: | 丁佳楠,王振龙,吕海深,等.基于气象要素和潜水埋深的裸地潜水蒸发计算模型研究[J].灌溉排水学报,0,():-. |
| DING Jianan,WANG Zhenlong,LV Haishen,et al.基于气象要素和潜水埋深的裸地潜水蒸发计算模型研究[J].灌溉排水学报,0,():-. |
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| Research on calculation model of bare ground phreatic water evaporation based on meteorological factors and phreatic depth factors |
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DING Jianan1, WANG Zhenlong2, LV Haishen1, LIU Zhumei1, LU Yunyan1, HUANG Yibo3
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1.Hohai University,Jiangsu Province Nanjing;2.Water Resources Research Institute of Anhui Province,Bengbu;3.Jiamusi University,Heilongjiang Province Jiamusi
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| Abstract: |
| Diving evaporation is one of the main consumption items in the water balance element.【Objective】To explore the relationship between phreatic evaporation of different soil types and bare ground, meteorological elements and depth.【Method】This paper uses the water evaporation and meteorological data of Wudaogou Hydrological Experimental Station in Huaibei Plain.The Mann-Kendall method was used to examine the interannual variation trend of phreatic water evaporation in different soil types,and using the spss statistical method, the correlation between the two soil bare ground phreatic evaporation and six meteorological elements is analyzed, and its multiple regression models are established respectively, and the Matlab software is used Five different nonlinear fitting functions of phreatic evaporation coefficient and buried depth are constructed.【Result】The results show that the degree of correlation between phreatic evaporation of Shajiang black soil and meteorological elements in descending order is: surface temperature, average temperature, rainfall, sunshine, and the degree of correlation between phreatic water evaporation and meteorological elements in the yellow fluvo-aquic soil in descending order: surface temperature, average annual Temperature, rainfall, relative humidity, sunshine. The regression models of different soil phreatic water evaporation and meteorological elements all meet the accuracy requirements (R2>0.7). Non-linear fitting shows that the Weibull function model of Shajiang black soil is the best in spring and summer (R2>0.98), while the power function model is used in autumn and winter (R2>0.9); Huang Chao soil spring and summer Weibull function model The fitting effect is the best (R2>0.96), the power function model is used in autumn (R2=0.963), and the exponential function model is used in winter (R2=0.962).【Conclusion】Meteorological factors and burial depth have a significant impact on diving evaporation.The appropriate diving evaporation calculation model can be selected according to different situations, which can be used in this area Calculation of diving evaporation. |
| Key words: Diving evaporation; Meteorological elements; Buried depth; Bare land; Huaibei Plain |
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