Gupta, Swati
GIS based Approach for LULC Changes : A Case of Guwahati, India - Vol.19(1), Jan-Mar - New Delhi Institute of Town Planners 2022 - 93-102p.
Each year about several hectares of green cover are lost due to unplanned urban
growth, particularly in the developing countries. This is resulting not only in depletion
of bio diversities but also a reason for major urban issues like flooding, soil erosion,
earthquake, several diseases, etc. Numerous Indian cities face this issue due to unplanned
developments which result in change of land use and land cover. The study assesses the
change in the land use and land cover (LULC) pattern of the Guwahati city using Landsat
imageries for the year 1990, 2000, 2010 and 2020. Five broad classes were analyzed based
on their spectral reflectance signature on the Arc GIS platform using image classification
tool and overall accuracy was checked. As a result, it was observed that the natural and
semi-natural areas, wetlands and water bodies, eco-fragile areas have decreased in the
past decades while there is a huge increase in built-up areas which is responsible for
problems majorly like flash floods, degradation of natural resources by excessive cutting
of hills, unhealthy local environment, etc. Therefore, there is a drastic need to make
the city climate resilient by efficient urban planning policy and strategies.
ARCHITECTURE GENERAL (AR-GEN)
GIS based Approach for LULC Changes : A Case of Guwahati, India - Vol.19(1), Jan-Mar - New Delhi Institute of Town Planners 2022 - 93-102p.
Each year about several hectares of green cover are lost due to unplanned urban
growth, particularly in the developing countries. This is resulting not only in depletion
of bio diversities but also a reason for major urban issues like flooding, soil erosion,
earthquake, several diseases, etc. Numerous Indian cities face this issue due to unplanned
developments which result in change of land use and land cover. The study assesses the
change in the land use and land cover (LULC) pattern of the Guwahati city using Landsat
imageries for the year 1990, 2000, 2010 and 2020. Five broad classes were analyzed based
on their spectral reflectance signature on the Arc GIS platform using image classification
tool and overall accuracy was checked. As a result, it was observed that the natural and
semi-natural areas, wetlands and water bodies, eco-fragile areas have decreased in the
past decades while there is a huge increase in built-up areas which is responsible for
problems majorly like flash floods, degradation of natural resources by excessive cutting
of hills, unhealthy local environment, etc. Therefore, there is a drastic need to make
the city climate resilient by efficient urban planning policy and strategies.
ARCHITECTURE GENERAL (AR-GEN)