The main purpose of the study was to assess the impact of energy willow (Salix viminalis L.) crops on the vascular flora diversity of agroecosystems in Łódź voivodeship in central Poland. The studies were carried out in the years 2013 and 2014 on seven commercial plantations which were established in various soil conditions, on five soil agricultural complexes. In total, 50 phytosociological relevés were made using the Braun-Blanquet method. The evaluation was conducted on the basis of an inventory of vascular flora accompanying energy willow crops, involving determination of phytosociological classes and multifaceted analysis. For each species the following parameters were determined: family, geographical and historical group, apophyte origin, biological-stability, life-form, and status as an invasive, endangered, near-endangered, or protected species. The number of vascular plant species accompanying energy willow crops was high (133 species in total) and depended on the soil conditions (soil agricultural complex - SAC). The largest number of species (74) was found on silty and sandy soils, too wet or too dry (SAC 9), while the lowest (45) was on very dry sandy soils (SAC 7). These species belonged mainly to three phytosociological classes: Molinio-Arrhenatheretea, Stellarietea mediae, and Artemisietea vulgaris. In all habitats, most species (83%) were rare and more frequent (I and II constancy class). The species were mainly apophytes – native species (76.7%), and among them meadow plants, woodland and shrub species were predominant. An important part of flora was endangered species (Agrostemma githago L.). Ten invasive plant species which mostly occurred very rarely were also found. Salix viminalis L. crops favor the maintenance of agroecosystem biodiversity, as confirmed by the values calculated for the Shannon–Wiener, Simpson and inverse Simpson indexes. The floristic diversity on the Salix viminalis L. plantations proved to be slightly higher than on typical arable crop plantations.

该研究的主要目的是评估能量柳（柳柳）的影响。L.）在波兰中部罗兹省的农业生态系统维管束植物多样性中的收成。这项研究是在2013年和2014年对七个在不同土壤条件下建立的商业人工林和五个土壤农业综合体进行的。总共使用Braun-Blanquet方法制作了50个植物学相关文献。评估是在对能源柳树农作物伴生的维管束进行清查的基础上进行的，涉及植物生理学类别的确定和多方面分析。对于每个物种，确定以下参数：家族，地理和历史群体，古生植物的起源，生物稳定性，生命形式以及作为入侵，濒危，近乎濒临灭绝或受保护物种的状态。伴有能量柳树的维管植物物种数量很高（总共133种），并且取决于土壤条件（土壤农业综合体-SAC）。在太湿或太干的粉质和沙质土壤中发现最多的物种（74）（SAC 9），而在非常干的沙质土壤中发现最少的物种（SAC 7）（45）。这些物种主要属于三个植物社会学类别：Molinio-Arrhenatheretea，Stellarietea中间和寻常的Artemisietea。在所有生境中，大多数物种（83％）是稀有且更为常见的（I和II恒定等级）。该物种主要是次生水生植物-本地物种（占76.7％），其中以草甸植物，林地和灌木物种居多。植物群的重要组成部分是濒危物种（Agrostemma githago L.）。还发现了十种入侵植物，其中大多数很少发生。如香农-维纳指数，辛普森指数和辛普森反指数所计算的值所证实，柳柳农作物有利于维持生态系统生物多样性。柳柳的植物区系多样性 事实证明，L。种植园比典型的可耕作种植园要高。