CHEN Zhi-liang¹, ZHANG Jian-qiang¹, HUANG Ling¹, YUAN Zhi-hui², LI Zhao-jun³, LIU Min-chao² 

¹ Guangdong Engineering Technology Research Center of Heavy Metal Pollution Control and Restoration in Farmland Soil, South China Institute of Environmental Sciences, Guangzhou 510635, P.R.China
² School of Environment and Chemistry, Wuyi University, Jiangmen 529020, P.R.China
³ Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture/China-New Zealand Joint Laboratory for Soil Molecular Ecology, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China