Effects of soil sodicity and gypsum application on dynamical behavior of heavy metal elements under effluent irrigation were studied by means of soil column leaching method in laboratory.
采用室内土柱淋洗试验方法，研究了污水灌溉条件下土壤碱度和石膏应用对土壤中重金属元素动态变化的影响。
Effects of PAM application rate and method on saturated hydraulic conductivity were studied in laboratory through a soil column leaching experiment.
通过室内土柱淋洗试验，研究了PAM施用量和施用方式对不同碱度土壤饱和水力传导度的影响。
The method, experimental equipment and results of column leaching were presented for low-grade copper sulfide ore.
介绍了含砷低品位硫化铜矿柱浸实验研究方法、装置和结果。
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