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Effect of urbanization on the dynamics of ecosystem services: An analysis for decision making in Kolkata urban agglomeration

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Title Effect of urbanization on the dynamics of ecosystem services: An analysis for decision making in Kolkata urban agglomeration
Not Available
 
Creator Das, S.
Shit, P.K.
Bera, B.
Adhikary, P.P
 
Subject CA–Markov model · Ecosystem service value (ESV) · Land use/land cover (LULC) · Scenario analysis for ESV · Urban expansion
 
Description Research article
Urbanization has profound influence on the changes of land use and land cover, which on the other hand exert significant
impact on ecosystem services and their values, especially in the urban agglomerations. Kolkata urban agglomeration of
India has been selected to determine the causes in changes of ecosystem services under present and projected land use land
cover scenario. Land use land cover maps of 1990, 2000, 2010 and 2020 were prepared by support vector machine method,
using LANDSAT satellite imageries and projected up-to 2040 using CA–Markov model. Built-up land was increased by
65.39% during 1990–2020 and will further increase to 76.88% by 2040. Built-up lands are mainly encroaching crop lands
and wetlands. During the period of fifty years (1990–2040), the ecosystem service value will decrease from $38,486.49
to $28,060.79, with annual rate of decrement of 0.54%. During the same period, the spatial extent of very low ecosystem
service value will be increased from 16.60 to 58.88%; whereas, the area coverage of very high ecosystem service value
will be decreased from 2.69 to 2.35%. Water supply contributed highest ecosystem service value followed by disturbance
regulation and nutrient cycling; whereas, lacking in soil formation, pollination and biological control services contributed
lowest. The study will help in decision making process for sustainable management of natural resources and also provide
useful guideline for the quality improvement in urban ecosystems.
https://doi.org/10.1007/s11252-022-01246-3
 
Date 2024-02-13T11:00:04Z
2024-02-13T11:00:04Z
2022-06-18
 
Type Article
 
Identifier Not Available
15731642, 10838155
http://krishi.icar.gov.in/jspui/handle/123456789/81353
 
Language English
 
Relation Not Available;
 
Publisher Springer