中国农业科技导报2025，Vol.27Issue(3)：183-193,11.DOI:10.13304/j.nykjdb.2023.0496
基于HYDRUS-1D土壤不同掺沙模式下水分入渗与蒸发特征研究
Characteristics of Water Infiltration and Evaporation Under Different Modes of Mixing Between Soil and Sand Based on HYDRUS-1D
摘要
Abstract
Wind-eroded deserts and oasis farmlands are typical manifestations of Xinjiang's dryland surface landscape,and water scarcity has become an important limiting factor for local agricultural development.In order to reveal the water movement patterns under different sand blending modes of soils,the water movement characteristics of 3 soil sand blending modes,namely,surface sand cover(TF),deep buried sand(TG)and shallow mixed sand(TH),were investigated based on ponding infiltration tests and combined with HYDRUS-1D software,using a homogeneous loam as control(CK).The results showed that the measured and simulated values of cumulative infiltration were in good agreement,with coefficients of determination(R2)ranging from 0.998 1 to 0.999 3 and root mean square errors(RMSE)ranging from 0.135 3 to 0.220 4.The HYDRUS-1D numerical model had good applicability and reliability for the inversion of soil hydraulic parameters under ponded infiltration conditions.TF,TG and TH reduced the infiltration time by 29.6%,-0.8%and 40.0%,respectively,compared to CK.TF and TH could significantly reduce the infiltration time(P<0.05).The effect of TF and TG on cumulative infiltration was not significant,while TH significantly reduced cumulative infiltration(P<0.05).The sand incorporation pattern had a significant effect on both the wetting front and the cumulative infiltration.The cumulative evaporation of TF,TG and TH increased by-17.47%,-1.89%and 40.82%,respectively,compared to CK over 214 d.TH significantly increased soil water evaporation loss(P<0.05),TF significantly inhibited soil evaporation(P<0.05)and TG had no significant effect on soil evaporation.Considering the current situation of water shortage in the region,the agronomic management measure of surface layer of sand mulch was recommended in filmless cultivation of crops in southern Xinjiang by taking integrating the characteristics of water movement under different modes of soil sand mixing into acount.关键词
HYDRUS-1D/入渗/反演/蒸发/模拟/荒漠沙Key words
HYDRUS-1D/infiltration/inversion/evaporation/simulation/aeolian sand分类
农业科技引用本文复制引用
王立成,朱珠,孔芊芊,彭永倩,陆永鑫,朱连勇..基于HYDRUS-1D土壤不同掺沙模式下水分入渗与蒸发特征研究[J].中国农业科技导报,2025,27(3):183-193,11.基金项目
新疆生产建设兵团重大科技项目(2018AA003). （2018AA003）
