Minneapolis-St. Paul Urban Tree Inventory

This dataset is a compilation of spatially explicit, species-specific urban tree inventories from across the seven-county Minneapolis-St. Paul (MSP) metropolitan area in Minnesota, U.S.A. The dataset was compiled to examine fine-scale patterns of tree biodiversity across MSP. Existing tree inventories were solicited from all municipalities, counties, park systems, and relevant non-profit organizations in the region for which we were able to find contact information, resulting in inventories from 37 municipalities, two counties, one park system, and one non-profit, along with two datasets from prior academic research efforts. The spatial and temporal scope of the inventories varies; for example, the inventories from some municipalities include data from a subset of only street trees at one timepoint, while other municipal inventories were continuously updated datasets with spatially comprehensive data for street trees in addition to some trees in parks and private lands. No inventory was fully comprehensive of all trees in an area. Data are assumed to have been collected between 2012-2022, although the timestamp on each data point is not explicit. Individual inventories were combined into one uniform database.

本数据集为美国明尼苏达州七县都会区明尼阿波利斯-圣保罗（Minneapolis-St. Paul，简称MSP）全域范围内的空间显性、物种精准型城市树木清查数据汇编，旨在探究MSP全域内树木生物多样性的精细尺度分布格局。本研究通过联系该区域所有可获取联系方式的市政当局、县级行政单位、公园管理机构及相关非营利组织，征集现有树木清查数据，最终共获取37个市政当局、2个县级行政单位、1个公园管理机构、1个非营利组织提供的清查数据，以及2项既往学术研究产出的数据集。各清查数据的空间覆盖范围与时间跨度存在差异：例如部分市政当局仅提供了某一时间节点下的行道树子集数据，而其他市政当局的清查数据为持续更新的数据集，除公园与私人用地上的部分树木外，还包含空间全覆盖的行道树数据。无任何一项清查数据可完全覆盖对应区域内的所有树木。尽管各数据点未明确标注采集时间，但默认所有数据的采集时段为2012年至2022年之间。所有独立清查数据已整合为统一数据库。