Effects of Typical Soil and Stratification Thickness on Water Infiltration Characteristics in Central Ningxia

作     者：Tianwen ZHANG Wei CHEN Xiaoying CHEN Rongjun ZHI Lin CHEN Haibo ZHANG Wei LIANG 

作者机构：Ningxia Hui Autonomous Region Institute of Mineral GeologyYinchuan 750021China Key Laboratory of Restoration and Reconstruction of Degraded Ecosystems in Northwest ChinaMinistry of Education(Ningxia University)Yinchuan 750021China College of Ecology and EnvironmentNingxia UniversityYinchuan 750021China 

出 版 物：《Meteorological and Environmental Research》 (气象与环境研究（英文版）)

年 卷 期：2024年第15卷第4期

页      面：58-65页

学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学] 

基　　金：Supported by the Natural Science Foundation of Ningxia Hui Autonomous Region(2022AAC03661) Financial Project of Geological Bureau of Ningxia Hui Autonomous Region(NXCZ20220201) 

主　　题：Soil type Layer thickness Water infiltration Desert steppe 

摘      要：In order to compare the influence of different soil types and stratification on water infiltration capacity,two main types of soil in the desert steppe,sierozem(S)and aeolian sandy soil(A),were selected,and infiltration simulation tests were conducted on homogeneous soil and layered soil(layer thickness 5,10,and 20 cm),*** results show that during the whole experiment,there was a small difference between S5A95(aeolian sandy soil 95 cm thick was covered with sierozem 5 cm thick)and S10A90(aeolian sandy soil 90 cm thick was covered with sierozem 10 cm thick)in the wetting front process,infiltration rate and cumulative infiltration,but there was a significant difference between S5A95 and S20A80(aeolian sandy soil 80 cm thick was covered with sierozem 20 cm thick).In the initial infiltration stage,there was no significant difference between A5S95(sierozem 95 cm thick was covered with aeolian sandy soil 5 cm thick)and A10S90(sierozem 90 cm thick was covered with aeolian sandy soil 10 cm thick).However,with the increase of infiltration time,the wetting front process,A5S95,A10S90 and A20S80 had significant differences in terms of wetting front process,infiltration rate and cumulative *** infiltration capacity of A was significantly higher than that of *** with linear R 2 value and model parameters,the three infiltration models were comprehensively compared,and the fitting process and results of the general empirical model for the infiltration process of homogeneous soil and layered soil showed good *** models were used to simulate the water infiltration process of layered soil with different textures,and the order of the effect is as follows:general empirical modelKostiakov modelPhilip *** type and layer thickness had a great influence on water infiltration *** sierozem was covered with aeolian sandy soil 20 cm thick,the infiltration capacity was the *** aeolian sandy soil was covered with sierozem 10 cm thic