Statutory Plant Health Notices - Scotland

This layer shows the extent of Statutory Plant Health Notices (SPHN) issued by Scottish Forestry in Scotland. The SPHN extent defines the boundary within which the full conditions and biosecurity measures of the SPHN apply - for smaller woodlands this is usually the external boundary of the woodland. The layer includes both active notices and older ones which have expired. It includes SPHNs issued for any pests and diseases, although the majority are for Phytophthora ramorum.

The SPHN extent is usually a buffer from a confirmed infected site (250m for P. ramorum), but may exclude areas that do not contain relevant trees, or may be extended to logical boundaries on the ground, such as the edge of a forest block. An SPHN is issued to the land owner, so the buffer zone from one infection could be split into multiple SPHNs if the extent covers multiple ownerships. An SPHN is specific to one pest or disease, so if multiple infections are found in one area, multiple overlapping SPHNs will be issued, one for each pest or disease.

This layer contains SPHNs issued as long ago as 2010. There have been changes to the reference number formats used and the details collected in that time, so not all attributes will be completed for all features. This layer is not exhaustive and does not include some old, expired SPHNs, such as those for Chalara ash dieback.

Dataset Attributes:

sphn_ref: SPHN reference number
sphn_status: Status of the SPHN
pest_disease: Pest of Disease the SPHN is issued to target
host_1: Primary host species the pest or disease is found on
host_1_ha: Area, in hectares, covered by Host 1 within the SPHN extent
host_2: Second host species the pest or disease is found on
host_2_ha: Area, in hectares, covered by Host 2 within the SPHN extent
host_3: Third host species the pest or disease is found on
host_3_ha: Area, in hectares, covered by Host 3 within the SPHN extent
date_issued: Date the SPHN was issued
date_compliance: Date by which the works required by the SPHN must be completed, taking into account any extensions
date_1st_compliance: Original date by which the works required by the SPHN must be completed, when the SPHN was first issued
reason_1st_compliance: Reason for the original (1st) compliance date
extension number: Number of extensions that have been granted to compliance date
reason_extension: Reason for extension of compliance date
date_sphn_expires: Date that the biosecurity conditions related to the SPHN expire
conservancy: Scottish Forestry conservancy office dealing with the SPHN
fls_land: Is the SPHN on land managed by Forestry and Land Scotland
pr_policy_zone: Is the SPHN within the Priority Action Zone or the Risk Reduction Zone for P. ramorum
pr_man_zone: Is the SPHN within the P. ramorum Management Zone, if applicable

本层展示了苏格兰林业在苏格兰发布的法定植物健康通告（SPHN）的覆盖范围。SPHN的覆盖范围界定了一个适用全面条件和生物安全措施的边界——对于较小的林地而言，这通常是林地的外围边界。该层包含所有有效的通告以及已过期的旧通告。它涵盖了针对任何害虫和疾病的SPHN，尽管大多数是针对疫霉菌属的疫霉菌。SPHN的覆盖范围通常是一个从已确认感染地点的缓冲区（对于疫霉菌属为250米），但可能排除不包含相关树木的区域，或者可能扩展至地面上的逻辑边界，例如森林地块的边缘。SPHN是针对土地所有者发布的，因此，如果一个感染点的缓冲区覆盖了多个所有权，该缓冲区可能被分割成多个SPHN。SPHN针对的是特定的害虫或疾病，因此如果在同一区域内发现多个感染，将发布多个重叠的SPHN，每个针对一种害虫或疾病。本层包含自2010年以来发布的SPHN。在此期间，参考编号格式和收集的详细信息已发生变化，因此并非所有属性都会在所有要素中完整。本层并非详尽无遗，且不包括某些已过期且失效的SPHN，如针对山毛榉枯萎病的通告。

数据集属性：
sphn_ref: SPHN参考编号
sphn_status: SPHN状态
pest_disease: 目标害虫或疾病
host_1: 害虫或疾病发现的主要宿主物种
host_1_ha: 在SPHN覆盖范围内，宿主1覆盖的面积，单位为公顷
host_2: 害虫或疾病发现的第二宿主物种
host_2_ha: 在SPHN覆盖范围内，宿主2覆盖的面积，单位为公顷
host_3: 害虫或疾病发现的第三宿主物种
host_3_ha: 在SPHN覆盖范围内，宿主3覆盖的面积，单位为公顷
date_issued: 发布SPHN的日期
date_compliance: 必须完成SPHN要求的工作的截止日期，考虑任何延期
date_1st_compliance: 首次发布SPHN时必须完成工作的原始截止日期
reason_1st_compliance: 原始（首次）合规日期的原因
extension number: 授予延期合规日期的数量
reason_extension: 延期合规日期的原因
date_sphn_expires: 与SPHN相关的生物安全条件失效的日期
conservancy: 处理SPHN的苏格兰林业保护区办公室
fls_land: SPHN是否位于苏格兰林业和土地管理局管理的土地上
pr_policy_zone: SPHN是否位于疫霉菌属的优先行动区或风险降低区
pr_man_zone: 如果适用，SPHN是否位于疫霉菌属的管理区