European Geographical Studies, 2019, 6(1)
21
Copyright © 2019 by Academic Publishing House Researcher s.r.o.
Published in the Slovak Republic
European Geographical Studies
Has been issued since 2014.
E-ISSN: 2413-7197
2019, 6(1): 21-38
DOI: 10.13187/egs.2019.1.21
www.ejournal9.com
A Comprehensive Assessment of Land Use and Land Cover in Lateritic terrain
through Remote Sensing and GIS in West Bengal
Sudipa Halder
a
, Malabika Biswas Roy
b
, Pankaj Kumar Roy
a , *
a
Jadavpur University, Calcutta, India
b
Women’s College, Calcutta, India
Abstract
Climate change is an important consequence of the land degradation. There is an urgent need
to manage the rapidly changing dynamicity of the earth surface in a sustainable way. Garbeta block
of West Medinipore has been chosen for the study to identify the sources of landform vulnerability
which is severely affected by rill and gully erosion. Land use and land cover analysis of three
distinct years has been computed which clearly shows the increase of dry fallow land over the
region from 1989 to 2018 making it more assailable to sheet and rill erosion during the monsoonal
period and encourage poor ground water recharge. An association map between land use/land
cover and elevation has been prepared using GIS software and Statistical Package for the Social
Science (SPSS) to find out the dominancy and similarity of a particular physical and human
activities over the region according to the relief. The environmental indices like Normalized
Difference Vegetation Index (NDVI) and Normalized Difference Water Index (NDWI) has been
prepared to analyse the ecological stability of the region. Therefore land use and land cover analysis
is an important tool for the policy makers and stakeholders to implement conservation schemes in
the light of sustainability.
Keywords: water stress, Multiple Correspondence, Kappa statistics, NDVI, NDWI.
1. Introduction
Land use and land cover assessment is one of the most important tool of quantifying and
qualifying the earth surface equilibrium. The dynamicity of the frequent landform configuration
can be easily monitored by applying this methodology. Environmental degradation together with
alarming rate of population growth has been modifying our valuable land resources since its birth.
Human induced land use and land cover change has brought far reach implications on the climate
change by instigating the global carbon cycle and increase of atmospheric CO2 to a greater limit.
According to Xiao et al. (Xiao et al., 2006: 322) land use and land cover switch play major role in
global climate change through its interaction with ecosystem and ecology. This change can be
detected and investigated by the amalgamated methodology of remote sensing and Geographical
Information System (GIS) (Wu et al., 2006: 322). In order to monitor the change in large areas
accurate and effective mapping techniques can be used and that can be done using remotely sensed
images like Landsat ETM
+
and Landsat 8 OLI (Mas, 2004: 219). Ravines or the regions of irregular
terrains are crisscrossed by numerous rills and gullies like that of the west Bengal Rarh plain which
*
Corresponding author
E-mail addresses: pk1roy2014@gmail.com (P. Kumar Roy)