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Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm

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Zoning Optimization Method of a Riverfront Greenspace Service Function Oriented to the Cooling Effect: A Case Study

Yunfang Jiang^1,2,3, Xiaolin Li^1,3, Jing Huang⁴

¹School of Urban and Regional Science, East China Normal University, Shanghai 200241, China.

International Journal of Environmental Research and Public Health

|December 11, 2022

Summary

Blue-green spaces in Shanghai

Keywords:

Shanghai blue–green space boosted regression trees (BRT)marginal effect (ME)riverfront area spatial morphology urban cooling effect (UCI)urban heat island (UHI)

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Area of Science:

Urban ecology
Environmental science
Geographic information systems

Background:

Blue-green spaces provide essential ecological services, particularly thermal comfort in urban environments.
Riparian buffers along rivers are crucial components of urban ecosystems.
Understanding the relationship between greenspace patterns and urban heat islands is vital for sustainable city planning.

Purpose of the Study:

To explore the correlations between riverfront greenspace patterns, functional zoning, and urban heat island (UHI) effects in Shanghai.
To investigate how different river types influence the morphosis and service functions of adjacent greenspaces.
To identify strategies for optimizing greenspace patterns to enhance cooling intensity.

Main Methods:

Utilized remote sensing and Geographic Information Systems (GIS) to analyze greenspace composition and land surface temperature.
Employed Boosted Regression Tree (BRT) modeling and statistical analyses to examine interrelationships.
Quantified morphological indices of riverfront greenspace and spatial distribution of land surface temperature.

Main Results:

Riverfront greenspace patterns and functions vary significantly across different urban functional zones (built-up, suburban, rural).
A distinct circular differentiation structure of cooling intensity was observed in urban riverfront areas.
Specific regular patterns of greenspace morphosis and service functions were identified for different river types.

Conclusions:

Riverfront greenspace plays a significant role in mitigating urban heat island effects, with patterns varying by urban context.
Optimizing greenspace composition and spatial patterns is key to enhancing cooling intensity and thermal comfort.
The study provides adaptive planning methods for improving microclimate conditions through landscape composition strategies.