Boukhris Asma, Laffont-Schwob Isabelle, Mezghani Imed, Kadri Lefi El, Prudent Pascale, Pricop Anca, Tatoni Thierry, Chaieb Mohamed
Aix Marseille Université, Avignon Université, CNRS, IRD, Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), 52 avenue Normandie-Niemen, 13397 Marseille cedex 20, France; Plant diversity and Ecosystems in Dry Environment, Faculty of Science, University of Sfax, 3000 Sfax, Tunisia.
Aix Marseille Université, Avignon Université, CNRS, IRD, Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), 52 avenue Normandie-Niemen, 13397 Marseille cedex 20, France.
Chemosphere. 2015 Jan;119:217-223. doi: 10.1016/j.chemosphere.2014.06.007. Epub 2014 Jul 9.
High fluoride pollution has been detected in the surrounding soils of the coastal superphosphate industries in the Gulf of Gabes (Southeast of Tunisia). A study was conducted in vicinity of factories analysing plant functional traits combined with plant fluoride accumulation and soil metal concentrations aiming to screen more efficiently native plant species tolerant to this pollution. Aerial parts of 18 plant species out of the 10 most abundant species per site were harvested on two polluted sites of Gabes and Skhira at the vicinity of the factories and on the less polluted site of Smara. Native plant species accumulated fluoride following the gradient of soil pollution. Fluoride contents of plant aerial parts ranged from 37 mg kg(-1) to 360 mg kg(-1) and five plant species were only found in the most polluted site. However these latter had low biomass and soil cover. Crossing biological traits and fluoride contents, a selection grid for potentially restorative plant species enabled the selection of three native perennials i.e. Rhanterium suaveolens, Atractylis serratuloides and, Erodium glaucophyllum as potential candidates for an in-situ phytoremediation program on arid fluoride-polluted sites. This approach may be used in other fluoride-polluted Mediterranean environments.
在加贝斯湾（突尼斯东南部）沿海过磷酸钙工业周边土壤中检测到高氟污染。在工厂附近开展了一项研究，分析植物功能性状，并结合植物氟积累和土壤金属浓度，旨在更高效地筛选耐这种污染的本地植物物种。在加贝斯和斯希拉工厂附近的两个污染场地以及污染较轻的斯马拉场地，采集了每个场地最丰富的10个物种中的18个植物物种的地上部分。本地植物物种的氟积累量随土壤污染梯度而变化。植物地上部分的氟含量在37毫克/千克至360毫克/千克之间，且仅在污染最严重的场地发现了5种植物。然而，后几种植物生物量低且土壤覆盖度小。通过交叉生物性状和氟含量，一个针对潜在修复植物物种的选择网格使得能够选出三种本地多年生植物，即软叶兰舌花、锯齿状白术和灰叶牻牛儿苗，作为干旱氟污染场地原位植物修复项目的潜在候选植物。这种方法可用于其他氟污染的地中海环境。
