Urban Green Infrastructure Planning in Jaipur, India: A GIS-Based Suitability Model for Semi-Arid Cities

Sustainability, Journal Year: 2025, Volume and Issue: 17(6), P. 2420 - 2420

Published: March 10, 2025

Urbanization in Jaipur, India, has led to a 42% decline green cover over the past two decades, exacerbating urban heat, air pollution, groundwater depletion, and reduced livability. Green Infrastructure (GI) offers sustainable solution, but effective implementation requires robust, data-driven strategies. This study employs geospatial technologies—GIS, remote sensing, Multi-Criteria Decision Analysis (MCDA)—to develop suitability model for Urban (UGI) planning. Using an entropy-based weighting approach, integrates environmental factors, including Normalized Difference Vegetation Index (NDVI), which fell by 18% between 2000 2020; Land Surface Temperature (LST), increased 1.8 °C; soil moisture; precipitation; slope; land use/land (LULC). Proximity water bodies was found be critical determinant of suitability, whereas surface temperature moisture played significant roles determining UGI feasibility. The results were validated using NDVI trends comparative analysis with prior studies so as ensure accuracy robustness. reveals that 35% Jaipur’s area, particularly peri-urban regions river corridors, is highly suitable interventions, thereby presenting opportunities cooling, flood mitigation, enhanced ecosystem services. These findings align India’s National Policy Framework (2018) UN Sustainable Development Goal 11, supporting climate resilience development. approach provides scalable methodology integrating spaces into planning frameworks across rapidly urbanizing cities.

Language: Английский

Microclimate of Outdoor Tree-Lined Boulevards in University Campuses in Hot Summer and Cold Winter Regions: A Case Study of a University in Guilin

Buildings, Journal Year: 2025, Volume and Issue: 15(9), P. 1476 - 1476

Published: April 26, 2025

Tree-lined spaces as informal communication areas and important pathways for pedestrians are the second largest zones on university campuses, they have a large impact microclimate. At present, effects of spatial form tree-lined boulevards microclimates not been investigated. Thus, this study applied experimental simulation methods to investigate in hot summer cold winter regions. The main meteorological parameters including air temperature, relative humidity, wind speed, solar radiation boulevard were obtained by experiments. Furthermore, data boundary condition input into ENVI-met software aspect ratio canopy diameter double-row open-canopy microclimate regulation. results showed that when was reduced from 1.5 0.9, temperature UTCI increased 0.047 °C 0.21 °C, while humidity decreased 0.227%. Decreasing can effectively improve microenvironment. As 7 m 11 m, space 0.064 0.45 0.245%. An increase is unfavorable improvement microclimates. This aims provide scientific basis design campuses.

Language: Английский