| 1. | In addition , based on the stable infiltration rate , the infiltration properties of soil in the catchments are classified to 4 grades
并依据土壤稳定入渗率将流域的土壤入渗特性分为4级。 |
| 2. | On this basis , the method for determination of reduced infiltration rate coefficient from irrigation data of surgeflow border irrigation is deduced
实例计算表明，这些方法能简单而有效地求得田间土壤平均入渗参数和减渗率系数。 |
| 3. | Pam treatment can prevent the disintegration of soil aggregates , even improve the structure of soils and prevent crust formation . pam , with high viscosity , can significantly increase water infiltration
Pam具有良好的黏结力，能有效改良土壤的表层结构，维护了土壤孔隙连通性，增加土壤的入渗率。 |
| 4. | Analyses were made to relate infiltration rates with pam coverage and describe impacts of pam application on infiltration . experimental results showed that the soils treated with pam had better and stabile properties
分析建立了降雨入渗率与pam的覆盖率间的相关关系，确定了pam的覆盖率对降雨入渗的影响。 |
| 5. | It adopts holton model to calculate infiltration rate and remains , water balance equation and linear reservoir to calculate runoff , every parameter has a clear physics meaning and geography rule
采用霍尔坦模型计算下渗率及截留量，水量平衡方程和线形水库进行栅格产汇流计算，模型的每个参数具有明确的物理意义和地理规律。 |
| 6. | Because of the joint - influence of the physiognomy and land use , the result showed that the infiltration properties of soil had significant variability in the catchment scale , and conformed to normal distribution
受土地利用和地貌的综合影响，土壤初始入渗率、稳定入渗率和前30min累积入渗量在流域尺度内呈中等变异性，均服从于正态分布。 |
| 7. | Abstract : based on the principle of balance of surface irrigation water volume , a method for determination of field average infiltration parameter according to the irrigation data is introduced
文摘:本文根据水量平衡原理，提出了利用大田畦灌灌水资料推求土壤入渗参数的方法，在此基础上，又提出了利用波涌灌水流推进和消退资料确定间歇入渗减渗率系数的方法。 |
| 8. | The results indicate that : purification efficiency of phenol was better of wetland soil in which was not reed - planted ; both the residence time of phenol in soil and the range of particle size affected the adsorption ability of wetland soil ; through changing soil infiltration and physicochemical properties of rhizosphere , reed can affect adsorption ability of wetland soil on phenol
结果表明，未生长芦苇的湿地土壤对苯酚具有较好的净化效果；苯酚在土壤中滞留时间、土壤的粒径范围均影响湿地土壤对苯酚的吸附能力；芦苇能改变土壤入渗率和根际土壤的理化性质，从而影响湿地土壤对苯酚的吸附能力。 |
