Natural Organic Amendments for Improved Phytoremediation of Polluted Soils： A Review of Recent Progress

• Published in: Pedosphere Vol. 26; no. 1; pp. 1 - 12
• Main Authors: WISZNIEWSKA, Alina, HANUS-FAJERSKA, Ewa, MUSZYŃSKA, Ewa, CIARKOWSKA, Krystyna
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01-02-2016; Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture, Kraków 31-425 Poland%Department of Soil Science and Soil Protection, Faculty of Agriculture and Economics, University of Agriculture, Kraków 31-120 Poland
• Subjects: agricultural wastes; bioavailability; biochar; contamination; natural chelators; toxic elements; 天然材料; 放射性核素; 有机改良剂; 有机污染物; 植物修复技术; 植物提取物; 污染土壤; 环境友好; agricultural wastes; biochar; bioavailability; natural chelators; toxic elements; contamination; contamination,natural chelators
• ISSN: 1002-0160; 2210-5107
• DOI: 10.1016/S1002-0160(15)60017-0

Environmental pollution caused by metals, radionuclides and organic pollutants affects quality of the biosphere： soil, water and air. Currently, great efforts have been made to reduce, remove or stabilize contaminants in polluted sites. There has been increasing interest in phytoremediation--the use of plants to reduce concentration of pollutants or to render them harmless. This paper provides a brief review of recent progress in the research and practical application of phytoremediation techniques. Improvements in phytoremediation due to utilization of organic amendments, namely, agro- and industrial wastes （such as sugar beet residue, composted sewage sludge or molasses）, biochar, humic substances, plant extracts and exudates are discussed, as well as their influences on soil structure and characteristics, plants growth and bioavailability of pollutants. Both plant-assisted phytoremediation and the use of natural materials in the absence of remediating plant are believed to be cost-effective and environmentally friendly approaches for soil cleanup. However, the characterization and quantification of a range of natural materials used in phytoremediation are essential in order to implement these approaches to practice.