A
screening method for
arid and semi-
arid lead and
zinc mining area remediation plants comprises the steps of conducting preliminary screening and determination of the remediation plants; conducting field planting and field
potting of the remediation plants; rapidly detecting the content of heavy
metal in soil through a portable instrument; collecting samples, preparing sample liquids and detecting the sample liquids through a traditional chemical method in a laboratory; and determining the screened remediation plants. By the adoption of the
screening method for the
arid and semi-arid lead and
zinc mining area remediation plants, the field
potting experiment and the field control experiment are combined to ensure that the growth environments of the plants in an experimental group and a control group are similar; and the plants which are high in
drought resistance, exuberant in
vitality and short in
growth cycle, belong to the same family and
genus with the existing remediation plants and are suitable for local plantation are selected, the content of heavy
metal in surface soil is rapidly detected through the portable heavy
metal content determining instrument, and therefore the screening period of the remediation plants is greatly shortened. The
screening method for the arid and semi-arid lead and
zinc mining area remediation plants has the beneficial effects of being high in
controllability and comparability, short in screening period and high in practical application value. Through the screening method, the arid and semi-arid lead and zinc mining area heavy metal remediation plants can be efficiently screened out, so that soil heavy
metal pollution in the area and similar areas is effectively controlled and soil purification is achieved.