USE OF GEO-SPATIAL TECHNIQUES TO ASSESS THE IMPACT OF LAND USE AND LAND COVER CHANGES ON THE LAND SURFACE TEMPERATURE OF LAHORE-PUNJAB
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Date
0022-06-22
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KINNAIRE COLLEGE GEOGRAPHY DEPARTMENT
Abstract
Lahore city of Pakistan, has witnessed population growth, rapid expansion and
developmental activities such as construction of new societies, roads and buildings due
to these reasons major changes has taken place in land use. RS and GIS technique has
been used to detect the land use and land cover changes (LULCC), Vegetation & non vegetation and (LST) land surface temperature in Lahore city for the year 2000 - 2020.
Images of Landsat 4-5 (TM) Thermal Mapper for 2000 & 2010, Landsat 7 for 2005
and Landsat 8 OLI 2020 & 2015 were used. By using supervised classification method
land use land cover maps were developed. Vegetation & non-vegetation and
temperature maps were developed. The results revealed that from 2000 to 2020, many
changes in land use occurred. Vegetative land, water bodies and vacant land decreased
while built-up area increases from 2000 to 2020. On the other hand, due to development
of urban areas, land surface temperature have also increased. The temperature
distribution map showed that in 2000 the land surface temperature was low as
compared to the land surface temperature of 2020. The vegetation land decreases and
non- vegetation land increased from 2000 to 2020. It is recommended that proper
planning should be made to protect the green area from urban development and steps
should be taken to lessen the land surface temperature effect such as planting more trees.