摘要
以土壤水动力学为理论基础,以原状砂壤土为例,进行了室内非饱和土壤水分运动参数的测定。通过实测数据与经验模型Van Genuchten的拟和,对试验结果和拟和结果进行了对比分析,发现计算值与实测数据吻合较好。结果表明选用的经验模型是可靠的,确定的非饱和土壤水分运动参数是合理的。
In this paper the experiment of the parameters for unsaturated soil water movement by experimental method in laboratory was carried out based on the theory of soil water dynamics and a case study of sandy clay loam. By observing the field data and fit values of Van Genuchten empirical model, it is found that the values of com-putation agree with the experimental data fairly well and also the result of selective empirical model is feasi-ble, the determination of soil water movement by experimental method in laboratory is reasonable.
出处
《新疆农业科学》
CAS
CSCD
2007年第4期490-493,共4页
Xinjiang Agricultural Sciences
基金
国家自然科学基金项目(50669007)
新疆维吾尔自治区高校科研计划创新群体基金项目(XJEDU2005G02)
关键词
砂壤土
土壤水分特征曲线
土壤水分传导度
土壤扩散度
sandy clay loam
parameters of soil water movement
hvdrauhc conductivity of soil
diffusion of soil
