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Urban Forest Nativity and Health Status Dataset
Data Science and Analytics
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About
This data standardises information on 5,660,237 individual city trees sourced from 63 of the largest metropolitan areas across the United States. Urban forests are essential for sustainable cities, providing benefits such as improving public health, cleaning the air, regulating local temperatures, and storing CO2. This collection supports researchers in understanding urban forests as ecosystems, allowing for detailed investigation into their spatial layout, levels of biodiversity, tree health, and nativity statuses (whether a species is naturally occurring or introduced). The underlying information was gathered through detailed tree inventories conducted at the city or neighbourhood level.
Columns
The dataset includes 28 standardised columns detailing various tree attributes. Key fields include:
- most_recent_observation: The date of the last recorded interaction with the tree (e.g., 7/12/2018, 7/2/2019).
- most_recent_observation_type: Identifies the nature of the last update, such as an
inventory_dateorcondition_date. - common_name/scientific_name: Provides both the plain English name (e.g., Siberian elm) and the biological classification (e.g., Ulmus pumila).
- city/state: The properly spelled location, such as Albuquerque, New Mexico.
- longitude_coordinate/latitude_coordinate: The exact geographic location of the tree species.
- address: The recorded physical address where the data was collected.
- condition: A standardised code reflecting the tree's health (e.g., 'good' or 'fair').
- height_M: The recorded height of the tree in meters.
- native: Categorises the species' nativity status as 'introduced,' 'naturally_occurring,' or 'no_info' (if the status is unknown or assigned only at the genus level).
- height_binned_M/diameter_breast_height_binned_CM: Categorical ranges for tree size, often converted from imperial measurements.
- greater_metro: The larger metropolitan area associated with the city (e.g., Albuquerque).
- location_type: Specifies the setting of the tree, such as a 'built_environment' or 'green_space.'
Distribution
The assembled product contains 5,660,237 unique tree records, which are sourced from 63 major US cities. The data sheets are structured with 28 standardized columns. The data is generally provided in a structured format, commonly CSV. A sample data file size is approximately 664.98 kB.
Usage
This collection is valuable for ecological research and urban policy development. Ideal applications include:
- Ecosystem Design: Informing the intentional design and management of biodiverse, heterogenous, and rich urban ecosystems.
- Environmental Modelling: Analyzing the spatial composition and structure of urban forests, including mapping nativity and biodiversity patterns.
- Data Integration: Combining the data with external sources, such as citizen-science datasets focusing on bird, insect, or plant biodiversity, as well as social, demographic, or physical environment data.
- Urban Forestry Management: Assessing and monitoring tree health and size distribution across large metropolitan regions.
Coverage
Geographically, the data spans 63 of the largest US cities. The records detail urban tree populations, focusing on attributes like species, location, health, and size. The time range reflects tree inventories collected by cities, with observation dates recorded up to 2019. The demographic scope is ecological, classifying trees based on species identity and nativity status (introduced vs. naturally occurring).
License
CC0: Public Domain
Who Can Use It
- Environmental Scientists and Ecologists: To study urban forest structure, species mix, and ecosystem services.
- Urban Planners and Policy Makers: To guide strategic green infrastructure development and monitor existing tree populations.
- Data Analysts and Researchers: For spatial and statistical modelling relating urban ecology to socioeconomic or environmental factors.
Dataset Name Suggestions
- US Metropolitan Tree Inventory (5.6M Records)
- Urban Forest Nativity and Health Status Dataset
- Standardised US City Tree Census
- Ecological Data on 63 US Urban Forests
Attributes
Original Data Source: Urban Forest Nativity and Health Status Dataset
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