TY - JOUR
T1 - Effect of simultaneous establishment of Sedum alfredii and Zea mays on heavy metal accumulation in plants
AU - Xiaomei, Liu
AU - Qitang, Wu
AU - Banks, M. Katherine
N1 - Funding Information:
Financial support for this research was provided by the Natural Science and Environmental Protection Foundations of Guangdong Province, China. The authors would like to thank Dr. Stephen Ebbs for editorial suggestions and Dr. Yang Xiao’e for seedlings of Sedum alfredii.
PY - 2005
Y1 - 2005
N2 - Land application of biosolids to improve agricultural productivity is a cost-effective approach for resource recovery. Unfortunately, municipal biosolids often contain high concentrations of heavy metals, including zinc and copper. In this study, a co-cropping technique was investigated using a known zinc hyperaccumulator, Sedum alfredii, with a grain crop, Zea mays. After a 3-mo growth trial, the results indicate that when Z. mays is co-cropped with S. alfredii, heavy metals accumulated in the grains were significantly reduced when compared to monoculture cropping. Co-cropping improved the growth of both plant species. In addition, the biosolids maintained stable pH, N-P-K concentrations, germination potential, and water content after the plant treatment, regardless of the plant species used in the trial. In conclusion, co-cropping with hyperacumulators may be an effective approach to reducing the risk of contaminant uptake in edible crops.
AB - Land application of biosolids to improve agricultural productivity is a cost-effective approach for resource recovery. Unfortunately, municipal biosolids often contain high concentrations of heavy metals, including zinc and copper. In this study, a co-cropping technique was investigated using a known zinc hyperaccumulator, Sedum alfredii, with a grain crop, Zea mays. After a 3-mo growth trial, the results indicate that when Z. mays is co-cropped with S. alfredii, heavy metals accumulated in the grains were significantly reduced when compared to monoculture cropping. Co-cropping improved the growth of both plant species. In addition, the biosolids maintained stable pH, N-P-K concentrations, germination potential, and water content after the plant treatment, regardless of the plant species used in the trial. In conclusion, co-cropping with hyperacumulators may be an effective approach to reducing the risk of contaminant uptake in edible crops.
KW - Heavy metals
KW - Hyperaccumulation
KW - Phytoremediation
KW - Plant uptake
UR - http://www.scopus.com/inward/record.url?scp=17844410681&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=17844410681&partnerID=8YFLogxK
U2 - 10.1080/16226510590915800
DO - 10.1080/16226510590915800
M3 - Article
C2 - 15943243
AN - SCOPUS:17844410681
VL - 7
SP - 43
EP - 53
JO - International Journal of Phytoremediation
JF - International Journal of Phytoremediation
SN - 1522-6514
IS - 1
ER -