tree

Summary An inventory of all trees in the public space managed by the city (city management). Trees are perennial woody plants above 3 m high (so some lower shavers or tuber shapes are not listed as trees). Trees in the forest sector are not managed individually and are referred to as flat. Objective Knowledge and efficient management of the tree stock in the city. The card layer is accessible only. Making changes and storing additional information (damage, management data... ) is done in customised software. Base map layer produced from one-off large-scale measurement (mainly through mobile mapping) and further complemented by terrestrial measurements. Short zones are mainly parks and are further measured in the period 2014-2018. Update of the data is done by processing as-built plans. Insertion and control of attributes (tree species, stock contour) is carried out by the site managers of SB/GB.摘要 本数据集为市政管辖的公共空间内所有树木的清查名录。树木定义为株高3米以上的多年生木本植物，因此部分低矮灌木或块茎状植物不纳入树木范畴。林业部门管辖的树木未进行单独管护，统一归类为成片林木。 目标 实现城市树木存量的精准掌握与高效管护。本数据集的公开图层仅可阅览，如需对数据进行修改或补充存储相关信息（如树木受损情况、管护数据等），需通过定制化软件完成。 底图图层通过一次性大规模测绘生成，主要采用移动测绘（mobile mapping）技术，并辅以地面测量（terrestrial measurements）进行补充完善。 以公园为主的短带状区域于2014-2018年间完成补充测绘。 数据更新通过处理竣工图（as-built plans）完成。 树木种类、种群轮廓等属性信息的录入与校验工作，由SB/GB的现场管理人员负责执行。