In the context of increasing biomass cultivation for energy production in Europe, the objective of this study was to carry out a multi-parameter assessment of soil quality under Miscanthus x giganteus crop at marginal sites. Chemical (pH, organic carbon, total nitrogen, C:N, metal trace elements), biological (microbial biomass, earthworm communities) and physical (aggregate stability, bulk density) soil properties were evaluated 5 years after planting Miscanthus on a polluted (CH) and unpolluted (MG) marginal sites and compared with adjacent undisturbed meadow areas and Miscanthus crop cultivated on an arable field (BF). The effect of Miscanthus on soil quality was site dependent and related to soil properties (texture), metal trace element (MTE) contamination and previous land use. At MG, where Miscanthus was cultivated on a previously undisturbed meadow, results suggested a negative effect of Miscanthus on soil biological properties with a lower earthworm abundance and biomass, and a worst functional and species structure in the Miscanthus than in the undisturbed meadow, despite a good yield. Results under Miscanthus at BF were similar in terms of soil quality to Miscanthus at MG and higher than under Miscanthus at the polluted site (CH). At CH, results suggested that Miscanthus may reduce the mobility of MTE, however further longer term studies, at a range of sites are needed to conclude about the impact of Miscanthus on soil quality at contaminated and/or uncontaminated sites.

在欧洲增加生物量种植以生产能源的背景下，本研究的目的是对Miscanthus x giganteus下的土壤质量进行多参数评估。在边缘地区种植。在污染的（CH）上种植芒草后5年，评估了化学性质（pH，有机碳，总氮，C：N，金属微量元素），生物性质（微生物生物量，worm群落）和物理性质（聚集体稳定性，堆积密度）。 ）和未受污染（MG）的边缘地区，并与相邻的未受干扰的草甸地区和在可耕地（BF）上种植的芒草作物进行比较。芒草对土壤质量的影响取决于地点，并且与土壤特性（质地），金属微量元素（MTE）污染和以前的土地利用有关。在MG上，在以前未受干扰的草地上种植了芒草，结果表明芒草对土壤生物学特性具有负面影响，earth含量和生物量较低，尽管产量很高，但与未受干扰的草地相比，芒草的功能和物种结构最差。就土壤质量而言，高炉芒Mi的结果与MG芒Mi的相似，但高于污染地点（CH）的芒scan。在CH，结果表明芒草可能会降低MTE的流动性，但是需要在一系列场所进行进一步的长期研究，以得出芒草对受污染和/或未污染场所土壤质量的影响的结论。