Identification of urban land use efficiency by indicator-SDG 11.3.1

Area of Science:

• Urban and Regional Planning
• Geospatial Analysis
• Sustainable Development Studies

Background:

• Rapid urbanization presents challenges to efficient urban land use.
• The UN Sustainable Development Goals (SDGs) indicator 11.3.1 specifically addresses urban land use efficiency.

Purpose of the Study:

• To compute and analyze land use efficiencies in Wukang, China, from 1990 to 2015.
• To evaluate urban land use efficiency against global benchmarks using SDG indicator 11.3.1.

Main Methods:

• Geospatial and statistical data were utilized for land use efficiency computation.
• A flowchart was developed to extract built-up land data from multiple sources.
• Accuracy of extracted built-up lands was validated using an error matrix.

Main Results:

• Land use efficiency in Wukang center was found to be lower than the global average.
• The study area's characteristics, with larger rural than urban regions, influenced the results.
• A trend towards denser urban land use with population growth was observed over the long term.

Conclusions:

• The findings provide insights into urban land use patterns in a developing county center.
• Observed trends suggest that increasing population density can positively impact urban development sustainability.
• This research offers valuable data for local governments to manage urban land consumption and population growth effectively.