Metal accumulation by the ultramafic flora of Kosovo
Metal accumulation by the ultramafic flora of Kosovo
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科索沃超镁铁质植物群的金属积累
DOI：
10.1007/s11284-018-1635-8
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发表时间：
2018
影响因子：
2
通讯作者：
G. Echevarria
中科院分区：
文献类型：
--
作者：
M. Salihaj;A. Bani;E. Shahu;E. Benizri;G. Echevarria
欧洲最大的蛇纹石露头出现在巴尔干半岛。科索沃是该地区的一部分，境内超镁铁质面积达 487 平方公里。这项工作报告了对科索沃重要且最具代表性的超镁铁质地块的首次系统生物地球化学调查。本研究的目的是 (i) 详细说明从 10 个选定的科索沃代表地点获得的 12 个超镁铁质石板的地球化学成分，(ii) 清点这些地点的植物区系，以及 (iii) 确定有可能用于植物稳定或植物提取目的的植物物种。发掘了全国10个不同地点的12个代表性基座，采集了27个层位样品。关于蛇纹石植物区系，共收集了位于超镁铁质地点的 162 个植物类群。对土壤样品的基本物理化学特性进行了表征，并对植物和土壤样品的化学成分进行了分析。蛇纹石土壤样本显示出大量的物理化学特征，反映了基岩的地球化学、风化程度和地层特征。然而，土壤特性与几种植物物种的出现之间似乎存在某种关系。尽管大多数植物物种的金属浓度均未超过 1000 mg kg−1，但 Odontarrena muralis（同义词 Alyssum murale Waldst. 和 Kit）。和Noccaea ochroleuca (Boiss and Heldr.) F.K.Mey。 （syn.Thlaspi ochroleucum），确实如此，因此满足镍超富集植物的标准。鉴于上述情况，这些植物对重金属的耐受性和积累能力可能有助于植物稳定，
The largest serpentine outcrops in Europe occur in the Balkan Peninsula. Kosovo, as a part of this region, hosts an ultramafic area of 487 km2 within its territory. This work reports the first systematic biogeochemical survey on the significant and most representative ultramafic massifs of Kosovo. The aim of this study was (i) to detail the geochemical composition of 12 ultramafic pedons obtained from 10 selected sites chosen as representative for Kosovo, (ii) to inventoriate the flora occurring on these sites and (iii) to identify plant species with potential for use in phytostabilization or phytoextraction purposes. Twelve representative pedons from 10 different sites across the country were excavated and 27 horizon samples were collected. Regarding the serpentine flora, a total of 162 plant taxa located at the ultramafic sites were collected. Soils samples were characterized for basic physico-chemical characteristics and both plant and soil samples were analyzed for chemical composition. The serpentine soils samples displayed a vast array of physico-chemical characteristics which reflected the geochemistry of the bedrock, the degree of weathering and the horizon characteristics. However there appeared to be a relationship between edaphic properties and the occurrence of several plant species. Although most of the plants’ species did not show metal concentrations above 1000 mg kg−1, Odontarrhena muralis (syn. Alyssum murale Waldst. and Kit). and Noccaea ochroleuca (Boiss and Heldr.) F.K.Mey. (syn.Thlaspi ochroleucum), did, thus meeting the criterion of Ni hyperaccumulating plants. Given the aforementioned, the resilience of these plants to both tolerate and accumulate heavy metals may prove useful for phytostabilization,