Wetland

This is an amalgamated dataset of wetland surveys done at different times and by different organisations. Each survey has different attribute fields and where the attribute fields record the same information this may take different forms. This data layer has been created using aerial imagery, LiDAR elevation data, and existing wetland geospatial information. While it provides a useful indicator of where wetlands are likely to occur, on-the-ground verification is necessary to confirm wetland locations, define boundaries, and determine relevant rules under local plans and legislation. The dataset has taken the most common/useful attribute information from all the surveys but this means not all the wetland polygons will have information for all attribute fields. All polygons have a value for Original Layer and Original ID so the information can be tracked back to it originating survey.本数据集为多机构、多时段开展的湿地调查整合数据集。各次调查的属性字段存在差异，即便属性字段记录的信息内容一致，其表述形式也可能各不相同。本数据图层通过航空影像、激光雷达（LiDAR）高程数据及现有湿地地理空间信息构建而成。尽管本数据集可有效指示湿地的潜在分布区域，但仍需开展实地验证，以确认湿地的具体位置、划定边界，并依据地方规划与法律法规确定相关判定规则。本数据集整合了所有调查中最常用且最具实用价值的属性信息，但这也意味着并非所有湿地多边形要素均包含全部属性字段的信息。所有湿地多边形要素均包含"原始图层（Original Layer）"与"原始ID（Original ID）"字段值，可追溯至其所属的原始调查数据源。