摘要
以非饱和土壤水运动理论和多孔介质中溶质运移的对流 -弥散理论为基础 ,建立了地下滴灌条件下描述地埋点源土壤水运动和溶质运移的数学模型。模型中对滴头边界进行了简化 ,并对其可行性进行了检验。模拟计算结果得到室内试验资料验证。该模型可用来描述地下滴灌土壤水、肥运动和分布规律 。
A three dimensional axi symmetrical model was developed to describe water flow and solute transport in variably saturated, rigid and homogeneous soil with subsurface drip irrigation and fertigation. A new hypothesis to simplify the boundary condition at the vicinity of emitters is used and tested in this model. Results of simulation was verified by the results of laboratory test.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2001年第6期1-4,共4页
Transactions of the Chinese Society of Agricultural Engineering
基金
"九五"国家科技重点攻关计划项目 ( 96-0 0 6-0 2 -0 1
关键词
地下滴灌
土壤水运动
溶质运移
数值模拟
subsurface drip irrigation
soil water flow
solute transport
numerical simulation
