Haut-de-France — Invasive exotic plants (Ancient period — By commune)
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Number per commune of invasive alien plants (vascular plants and Bryophytes) for the Hauts-de-France region, observed before 2000 Description of content This layer specifies by commune of the five departments of Hauts-de-France (02, 59, 60, 62, 80), the number of invasive alien plant species (vascular plants (Fougères and Seed Plants) and Bryophytes) and observed before 01/01/2000. The term “invasive alien plants” (now preferred to “invasive plants”) applies to exotic plants, generally naturalised (statut N or Z), resulting in significant changes in ecosystem composition, structure or functioning by their proliferation in natural or semi-natural environments. Economic impacts (neck for navigation, fishing, leisure) or health impacts (toxicity, allergic reactions, etc.) are frequently added to these ecological nuisances. Pending a unified national methodology, the selection of invasive alien species (verified or potential) for Hauts-de-France and Haute-Normandie is mainly based on the national synthesis of S. MÜLLER (2004) and national and international databases, supplemented by some proven or anticipated regional cases not dealt with at national level. N.B.: some exotic taxa considered invasive in some neighbouring regions but for the most part long-established and not a priori having any significant environmental or economic impacts have been excluded from the regional list. They were most often ruderal species (e.g. Berteroa incana, bunias orientalis, Galinsoga quadriradiata, etc.). Taxon is considered to be an invasive alien plant in areas close to or anticipated as such in the area concerned, where it is either invasive in habitats of heritage interest or impacting threatened plant species at regional or national level, or affecting health, economy or human activities. Taxon is considered to be a potential invasive alien plant in areas close to or anticipated as such in the region concerned: No significant impacts on heritage habitats, regional or nationally threatened plant species, or on health, economics or human activities have so far been identified or anticipated in the region. Data awarded Municipality [libelle]: wording of the commune with INSEE code in brackets. INSEE code [code]: INSEE code of the municipality. Number of EEAs [nbre_ap]: number of invasive alien plant species (vascular plants (Fewages and Seed Plants) and Bryophytes) observed before 2000 in the commune. Number of proven EEAs [nbre_a]: number of invasive alien plant species (vascular plants (Fewages and Seed Plants) and Bryophytes) found in the commune prior to 2000. Number of potential EEAs [nbre_p]: number of potential invasive alien plant species (vascular plants (Fewages and Seed Plants) and Bryophytes) observed before 2000 in the commune. List of species [listtaxes]*: lists of invasive alien plant species (vascular plants (Fewages and Seed Plants) and Bryophytes) observed before 2000 in the commune. *see additional information and codifications used on: https://digitale.cbnbl.org/aide/Digitale2_ListeEspecesDescription.pdf
上法兰西大区(Hauts-de-France)2000年之前观测到的各市镇入侵外来植物(维管植物与苔藓植物(Bryophytes))数量数据集 内容说明 本数据集覆盖上法兰西大区(Hauts-de-France)下辖的5个省(编号02、59、60、62、80)的所有市镇,统计了2000年1月1日之前观测到的入侵外来植物(invasive alien plants)物种数量,涵盖维管植物(vascular plants,包括蕨类植物与种子植物)以及苔藓植物(Bryophytes)。 "入侵外来植物"这一术语(如今优先于"入侵植物")指的是外来植物,通常已完成归化(状态为N或Z),它们在自然或半自然环境中大量繁殖,会显著改变生态系统的组成、结构或功能。此类生态危害往往还伴随经济影响(如阻碍航运、干扰渔业与休闲活动等)以及健康影响(如毒性、引发过敏反应等)。 在全国统一方法学尚未出台的背景下,上法兰西大区与上诺曼底大区的入侵外来物种(已验证或潜在)遴选工作主要依据S. MÜLLER(2004)的全国性综述以及国内外数据库,并补充了部分国家级层面未覆盖的已证实或预期出现的区域案例。注:部分在周边地区被认定为入侵物种的外来类群,因多数已长期归化,且先验而言未产生显著的环境或经济影响,已被排除出本区域名录。此类类群多为适生于人为扰动生境的杂草,例如圆锥花荠(Berteroa incana)、东方荠(Bunias orientalis)、粗毛牛膝菊(Galinsoga quadriradiata)等。 若某类群在目标区域内或预期将在该区域成为入侵外来植物,且满足以下任一条件,则该类群被认定为入侵外来植物:在具有保护价值的生境中形成入侵;对区域级或国家级濒危植物物种造成影响;危害人类健康、经济或人类活动。 若某类群在目标区域内或预期将在该区域成为潜在入侵外来植物,且截至目前未发现或预期其会对保护价值生境、区域级或国家级濒危植物物种、人类健康、经济或人类活动造成显著影响,则该类群被认定为潜在入侵外来植物。 数据字段说明 1. 市镇名称(libelle):标注有括号内法国国家统计与经济研究所(INSEE)代码的市镇全称。 2. INSEE代码(code):对应市镇的INSEE编码。 3. 外来入侵植物物种总数(nbre_ap):该市镇2000年之前观测到的外来入侵植物物种(涵盖维管植物,包括蕨类植物与种子植物,以及苔藓植物)的总数量。 4. 已证实外来入侵植物物种数量(nbre_a):该市镇2000年之前确认发现的外来入侵植物物种(涵盖维管植物,包括蕨类植物与种子植物,以及苔藓植物)的数量。 5. 潜在外来入侵植物物种数量(nbre_p):该市镇2000年之前观测到的潜在外来入侵植物物种(涵盖维管植物,包括蕨类植物与种子植物,以及苔藓植物)的数量。 6. 物种列表(listtaxes)*:该市镇2000年之前观测到的外来入侵植物物种(涵盖维管植物,包括蕨类植物与种子植物,以及苔藓植物)的详细清单。 * 相关附加说明与编码规则详见:https://digitale.cbnbl.org/aide/Digitale2_ListeEspecesDescription.pdf



