Ancient Woodland - Revised (England) - Completed Counties

Updated Boundaries of Ancient Woodland polygons covering England. This is the updated spatial dataset that describes the geographic extent and location of ancient woodland in England (excluding the Isles of Scilly). Ancient Woodland features will be approved county-by-county for publication throughout the first year of production until the data product coverage extends across England. Where available this dataset takes precedence over the Ancient Woodland – England dataset. The update revises the inventory to address problems and gaps in the previous iteration. Technological advances mean that small ancient woodlands (0.25-2ha) are being represented within the inventory for the first time as well as wood pasture and parkland being represented as its own category.

The inventory identifies ancient woodland sites in England. Ancient woodland is identified by studying the presence or absence of woods from historic maps, information about the wood's name, shape, internal boundaries, location relative to other features, ground survey, and aerial photography. The information recorded about each wood and stored on the Inventory Database includes its grid reference, its area in hectares and how much is semi-natural or replanted. Prior to the digitisation of the boundaries, only paper maps depicting each ancient wood at 1:50 000 scale were available. Attribution statement: © Natural England 2024. Contains OS data © Crown copyright and database rights 2024. OS AC0000851168. It includes Ancient Semi-Natural Woodland (ASNW), which retains a native tree and shrub cover; Plantation on Ancient Woodland Sites (PAWS), where the original tree cover has been felled and replaced by planting, often with conifers; Ancient Wood Pasture (AWPP), where the trees are managed in tandem with a long established tradition of grazing, characteristically with at least some veteran trees or shrubs or; Infilled Ancient Wood Pasture (IAWPP) which has become infilled with trees arising from planting or natural regeneration. Attribution statement: © Natural England 2023, Contains OS data © Crown copyright and database rights 2023. OS AC0000851168

英格兰古代林地多边形边界更新版。本更新版空间数据集详细描述了英格兰（不包括锡利群岛）古代林地的地理范围和位置。古代林地特征将在生产首年逐县审核批准，直至数据产品覆盖全英格兰。在可用的条件下，本数据集优先于《英格兰古代林地》数据集。此次更新修订了清单，以解决前一代数据中的问题和空白。技术进步意味着小型古代林地（0.25-2公顷）首次被纳入清单，同时林地和公园用地也被作为一个独立类别进行表征。该清单识别了英格兰的古代林地遗址。古代林地的识别通过研究历史地图上林地的存在与否、林地的名称、形状、内部边界、与其他特征的相对位置、地面测量和航空摄影等信息进行。每个林地记录的信息及其在清单数据库中的存储包括其网格参考、面积（公顷）以及半自然或重新种植的程度。在边界数字化之前，仅有的描绘每个古代林地1:50 000比例尺的纸质地图。归属声明：© 自然英格兰2024。包含OS数据©英王版权及数据库权利2024。OS AC0000851168。它包括以下内容：古代半自然林地（ASNW），保留有原生树木和灌木覆盖；古代林地遗址上的植树（PAWS），原始树冠已被砍伐并由种植替代，通常为针叶树；古代林地草原（AWPP），树木管理与长期建立的放牧传统相结合，特征性地至少有部分古树或灌木；以及填充式古代林地草原（IAWPP），因种植或自然再生而填充了树木。归属声明：© 自然英格兰2023，包含OS数据©英王版权及数据库权利2023。OS AC0000851168。