搜索结果: 1-5 共查到“土壤学 retention”相关记录5条 . 查询时间(0.027 秒)
Computation method of the drainage retention capacity of soil layers with a subsurface pipe drainage system
agricultural areas groundwater reservoir hydrological extremes unsteady-state groundwater conditions
2015/3/13
Methodological procedure for determining the drainage retention capacity (DRC) of surface layers under conditions of unsteady-state groundwater flow was demonstrated. DRC of the drainage system can be...
Retention characteristics of acetochlor in soils collected from different depths in relation to soil properties (Žitny ostrov area, SW Slovakia)
chloroacetanilide herbicide desorption leaching potential sorption
2015/3/10
Determination of the sorption-desorption of herbicides within soil profile is one of the first steps in predicting their leaching potential. Batch experiments were performed to evaluate the influence ...
Retention Curves of Soil from the Liz Experimental Catchment Obtained by three Methods
retention curve hydraulic properties numerical experiment
2015/3/1
The retention curves were measured in the soil from the Liz experimental catchment (Šumava). The
sand table and pressure extractor methods were used to obtain a 13-point retention curve for und...
不同土层土壤水分特征曲线的空间变异及其影响因素（Spatial Variability of Soil Water Retention Curve in Different Soil Layers and Its Affecting Factors）
土壤水分特征曲线 空间变异 多重分形
2010/1/28
利用多重分形和联合多重分形方法，对陕西杨凌地区0～20cm和20～40cm土层van Genuchten模型参数的空间变异性及其影响因素进行了研究。结果表明：0～20cm和20～40cm土层参数α都具有明显的多重分形特征，空间变异性较强，且分别是由低值和高值分布引起的；参数n和θs的多重分形特征不明显，空间变异性较弱。0～20cm和20～40cm土层van Genuchten模型参数与土壤物理特性...
Effects of hydraulic retention time and media of constructed wetland for treatment of domestic wastewater
Hydraulic retention time (HRT) Media Typha sp constructed wetland
2009/3/3
A greenhouse experiment was conducted to investigate the effect of varying soil-to-sand ratios of constructed wetland on wastewater treating efficiency. Wetland beds were prepared with locally ava...