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Geospatial Analysis of Land Use and Land Cover Dynamics and its Impact on Urban Wetland Ecosystems in Delhi NCR Region, India

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Title Geospatial Analysis of Land Use and Land Cover Dynamics and its Impact on Urban Wetland Ecosystems in Delhi NCR Region, India
 
Creator Singh, Raghvendra
Mishra, Varun Narayan
Shukla, Sudhakar
 
Subject Change detection
Ecosystem services
Landsat
LULC
Wetlands
 
Description 783-795
Urban wetlands are highly neglected and are encroached upon to accommodate more settlements or to dump waste
materials. They are susceptible to encroachment and undergo Land Use/Land Cover (LULC) change thereby diminishing
their value. This study aims to examine and assess the spatial-temporal LULC change for selected wetlands of Delhi NCR
vis-à-vis ecosystem services. Landsat imageries for the years 1998, 2008 and 2018 are used to understand the change
dynamics using supervised classification with overall accuracy of more than 80% for all years. Classification was done
separately for Delhi NCR and 5 km buffer around the wetlands. In Delhi NCR the net percent change during the 20-year
period was found to be +5.22% and +8.56% for built-up and cropland respectively. During the same period, the
plantations/forest cover and water bodies changed by –8.30% and –0.50% respectively. Plantations/forest cover has shown a
negative net percent change in six wetlands, with Najafgarh experiencing the highest (–10.75%), followed closely by
Surajpur wetland (–10.68%), Bhalswa lake wetland (–9.93%), Yamuna Biodiversity Park (–6.77%), Pusa Hill Forest
(–5.18%) and Asola Wildlife Sanctuary (–5.21%). The LULC change analysis has pointed to the loss of wetland area to
built-up and/or cropland which is going to affect the ecosystem services provided by these wetlands. Geospatial tools are an
important tool to understand the changing LULC in such sensitive ecosystems. It is needed to manage wetlands sustainably
so that the corresponding ecosystem services could be preserved.
 
Date 2023-07-06T04:35:16Z
2023-07-06T04:35:16Z
2023-07
 
Type Article
 
Identifier 0022-4456 (Print); 0975-1084 (Online)
http://nopr.niscpr.res.in/handle/123456789/62266
https://doi.org/10.56042/jsir.v82i07.1285
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source JSIR Vol.82(07) [July 2023]