Analysis of serpentinophytes from north-east of Portugal for trace metal accumulation - relevance to the management of mine environment

被引:108
作者
Freitas, H [1 ]
Prasad, MNV
Pratas, J
机构
[1] Univ Coimbra, Fac Ciencias & Tecnol, Dept Bot, P-3000 Coimbra, Portugal
[2] Univ Hyderabad, Dept Plant Sci, Hyderabad 500046, Andhra Pradesh, India
[3] Univ Coimbra, Fac Ciencias & Tecnol, Dept Ciencias Terra, P-3000 Coimbra, Portugal
关键词
serpentinophytes; phytodiversity; metal accumulators; remediation; environmental significance;
D O I
10.1016/j.chemosphere.2003.09.045
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
In north-east of Portugal, the serpentinized area is about 8000 ha with a characteristic geology and flora. The serpentine plant community and respective soils were analyzed to examine the trace metal budget in different tissues of the plants exhibiting resistance to trace metals. One hundred and thirty five plant species belonging to 39 families and respective soils have been analyzed for total Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn. Substantial amounts of Ni, Cr, Co and Mn were detected in plant tissues which are listed below: Ni: Alyssum serpyllifolium (38 105); Bromus hordeaceus (1467); Linaria spartea (492); Plantago radicata (140); Lavandula stoechas (118) and Cistus salvifolius (114); Cr: L. spartea (706.7); Ulmus procera (173.4); A. serpyllifolium (129.3); Cistus ladanifer (40.8); L. stoechas (29.5); P. radicata (27.81); Setariopsis verticillata (25.7); Plantago lanceolata (24); Digitalis purpurea (23.4); Logfia minima (23.1); Arenaria querioides (23); Hieracium peleteranum (22.7); Arenaria montana (14.5); Co: A. serpyllifolium (145.1); L. spartea (63.2); P. radicata (10.4); H. peleteranum (7.3); Lepidium heterophyllum (6.9); A. querioides (6.6); C. salvifolius (6.5); C. ladanifer (6.3); L. stoechas (6.1); Anthyllis lotoides (6.1); L. minima (6.1); Euphorbia falcata (5.7) and B. hordeaceus (5.6); Mn: A. serpyllifolium (830); L. spartea (339); L. stoechas (187.1); L. minima (182.7); Castanea sativa (125); Spergula pentandra (124); P. radicata (119); Cytisus striatus (115.4); Quercus pyrenaica (110); Teucrium scorodonia (109.4); Fraxinus vulgaris (109); Anthyllis sampaiana (108); Quercus ilex (108). The significance of serpentine flora, need for conservation of these fragile and environmentally invaluable plant resources for possible use for in situ remediation of metalliferous substrates are presented in this paper. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1625 / 1642
页数:18
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