UK Biodiversity Indicator C3a, Status of UK habitats of European importance

This spreadsheet is the underlying data for the biodiversity indicator C3a, Status of UK habitats of European importance.

Article 17 of the European Union Habitats Directive requires Member States to report every six years on progress made with maintaining and/or restoring favourable conservation status for habitat types and species of community interest. These are habitats and species for which the UK has European-level conservation responsibilities.

Details of exactly what information is to be delivered is laid out in the report format and guidance notes. Each assessment needs to conclude whether the habitat is in one of the following states:
- Favourable
- Unfavourable-Inadequate
- Unfavourable-Bad
- Unknown

However, it is likely to take time before habitats move from unfavourable conservation status to favourable conservation status, so for the unfavourable assessments, an assessment of trend is made to determine if the habitat is improving, declining, or stable.

This is one of a suite of 24 UK biodiversity indicators published by JNCC on behalf of Defra; the latest publication date was 19 January 2016 - for indicator C3a the latest data are for 2013. The supporting technical document details the methodology used to create the indicator.

本电子表格构成了生物多样性指标C3a的基础数据，该指标关注英国具有欧洲重要性的栖息地状况。
欧盟栖息地指令第17条要求成员国每六年报告一次在维持和/或恢复有利于保护栖息地和社区利益物种的有利保护状况方面所取得的进展。这些栖息地和物种属于英国在欧洲层面上的保护责任范畴。
具体应提供的信息细节已在报告格式和指导说明中阐明。每次评估均需得出以下状态之一：
- 有利
- 不利-不足
- 不利-恶劣
- 未知
然而，栖息地从不利保护状况转变为有利保护状况可能需要一段时间，因此对于不利评估，将进行趋势评估以确定栖息地是改善、恶化还是保持稳定。
这是由JNCC代表Defra发布的24个英国生物多样性指标系列之一；最新出版日期为2016年1月19日——对于指标C3a，最新数据为2013年。支持技术文档详细说明了创建该指标所使用的方法。