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Biological Cycles of Mineral Elements in a Young Mixed Stand in Abandoned Mining Soils
Author(s) -
Tian DaLun,
Xiang WenHua,
Yan WenDe,
Kang WenXing,
Deng XiangWen,
Fan Zhu
Publication year - 2007
Publication title -
journal of integrative plant biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.734
H-Index - 83
eISSN - 1744-7909
pISSN - 1672-9072
DOI - 10.1111/j.1744-7909.2007.00535.x
Subject(s) - phytoremediation , nutrient , pollutant , environmental chemistry , vegetation (pathology) , organic matter , environmental science , cycling , soil water , heavy metals , metal , nutrient cycle , chemistry , soil science , forestry , geography , medicine , organic chemistry , pathology
Phytoremediation as a sustainable and inexpensive technology based on the removal of pollutants from the environment by plants is becoming an increasingly important objective in plant research. In this study, biological cycles of five nutrient elements (N, P, K, Ca, and Mg) and eight heavy metal elements (Fe, Cu, Zn, Mn, Cd, Ni, Pb and Co) were examined in young paniculed goldraintree ( Koelreuteria paniculata Laxm) and common elaeocarpus (Elaeocarpus decipens ) mixed stands in an abandoned mining area. We found that after vegetation restoration in abandoned mining areas, the organic matter and concentrations of nutrient elements were significantly increased and the heavy metal elements were significantly decreased, the annual retention, uptake and return were 75.0, 115.4, and 40.3 kg/hm 2 for nutrient elements, and 1 878.0, 3 231.0 and 1 353.0 g/hm 2 for heavy metal elements, respectively, with the utilization coefficient, cycling coefficient and turnover rate of 0.92, 0.35 and 0.32 for nutrient elements, and 1.24, 0.42 and 1.92 for heavy metal elements, respectively. Our results suggested that the vegetation restoration in abandoned mining areas had significant effects in improving environmental conditions, enhancing soil available nutrients, and ensuring human health.