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中国地质大学(武汉)环境学院
Published:2026
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王云权, 陈思源, 齐鹏飞. 考虑土壤结构和吸附力作用下的土壤水分运移模拟[J]. Bulletin of Geological Science and Technology, 2026, 45(1): 272-278.
王云权, 陈思源, 齐鹏飞. 考虑土壤结构和吸附力作用下的土壤水分运移模拟[J]. Bulletin of Geological Science and Technology, 2026, 45(1): 272-278. DOI: 10.19509/j.cnki.dzkq.tb20240286.
传统土壤水力模型基于毛细理论,对土壤结构(大孔隙)和土壤吸附作用的表征较差,不能准确刻画近饱和以及土壤含水量较低情形下的土壤水力特征,因而不能准确模拟土壤水分运移特征。为了对比不同土壤水力特征模型的表现,基于FLUXNET数据库7个站点土壤含水量的连续实测数据,分别使用考虑土壤结构、吸附力以及毛细作用的FXW-M3模型和仅考虑毛细力的VGM模型,通过改进的HYDRUS-1D软件对站点实测土壤含水量数据进行模拟分析。结果表明考虑土壤结构和吸附力影响的FXW-M3模型显著提高了土壤水分运移模拟的精度。7个站点FXW-M3模型的均方根误差RMSE的平均值为0.004 8 cm
3
/cm
3
,低于VGM模型的0.011 3 cm
3
/cm
3
;相关系数R的平均值为0.80,高于VGM模型的0.75。模拟结果表明土壤结构和干吸附力对土壤水分运移有着显著影响。
金玉,陈文岭,王铭森,禹治红,刘延锋.基于露点水势仪与滤纸法的盐渍土蒸发过程中吸力动态规律[J].地质科技通报,2025(06).
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