Adaptability evaluation of human settlements in Chengdu based on 3S technology

Area of Science:

• Environmental Science
• Urban Planning
• Geographic Information Systems

Background:

• Assessing human settlement adaptability is crucial for sustainable urban development.
• Chengdu's rapid growth necessitates an evaluation of its residential environment's suitability.
• Understanding the interplay between natural and human factors is key to optimizing urban planning.

Purpose of the Study:

• To evaluate the adaptability of human settlements in Chengdu using 3S technology.
• To analyze natural eco-environmental and human disturbance factors influencing settlement adaptability.
• To construct and apply an evaluation model for Chengdu's residential environment adaptability.

Main Methods:

• Utilized 3S technology (Remote Sensing, GIS, GPS) for data acquisition and analysis.
• Employed the Analytic Hierarchy Process (AHP) to determine index weights.
• Developed an evaluation model integrating natural factors (terrain, climate, land use) and human factors (traffic, GDP).

Main Results:

• Adaptability index ranges from 15.98 to 76.75, decreasing from central Chengdu towards east and west.
• Suitability is categorized into high-grade, relatively high-grade, moderately, and low suitable areas.
• Per capita GDP, topographic relief, and temperature/humidity were key influencing factors on population distribution.

Conclusions:

• Chengdu possesses favorable natural conditions and stable ecological quality.
• Despite good natural environments, certain areas like southeast Chengdu and Longmenshan exhibit low human settlement suitability.
• The study highlights the need for targeted planning strategies to address regional variations in settlement adaptability.