The aims of the present investigation were to reveal the distribution and enrichment characteristics of copper in soil and
Phragmites australis of Liao River estuary wetland. The concentrations of copper in root, stem, leaf, and ear of
Phragmites australis as well as in soil were determined to study the absorption capacity of copper by wild
Phragmites australis of Liao River estuary wetland. The study was carried out at test pool of the Shenyang Agricultural University, and the experimental materials (soil, irrigating water and
Phragmites australis) were derived from Liao River estuary wetland. The concentrations of copper in soil and
Phragmites australis were 16.4441 to 49.0209 mg/kg and 0.8621 to 89.5524 mg/kg, respectively. The results indicated that the enrichment coefficients of copper in different tissues of
Phragmites australis changed with the growth of
Phragmites australis. The results revealed that the enrichment coefficients of copper in the whole
Phragmites australis were greater than 1 at each growing stage of the
Phragmites australis. The results also showed that the transfer coefficients of
Phragmites australis to copper changed with the growth of
Phragmites australis. The results revealed that the
Phragmites australis had a good removal effect on copper from soil and had some characteristics of copper hyperaccumulator.
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