Mapping Of Urban Green Spaces Using Remote Sensing Technique: A Study Of Cities Of Punjab

Abstract

Urban green spaces are important part of urban areas for good/fresh environment. These spaces are helpful in controlling and reducing the pollution and the temperature. These urban spaces provide a variety of services like biodiversity conservation, noise reduction, mitigation of urban heat island effect, prevention of soil erosion and carbon sequestration. Due to increasing urbanization, the quantity and quality of urban green spaces are degraded. So urban authorities are concerned about the management of green areas in the cities. Mapping of vegetation and green spaces play an important role to conserve the environment and sustainable environment in urban areas for authorities. In the study, the remote sensing is used for the mapping the urban green areas. This study probes the vegetation change detection in the four cities of Punjab over the period of 17 years from 2000 to 2017 based on NDVI (Normalized Difference Vegetation Index) by using remote sensing images of Landsat 7 and Sentinel 2 data.