Date
2024-05-18Metadata
Show full item record
Aufsatz
Urbanization and seasonal effects on the lake ecosystem dynamics from 2002 to 2022 in Bengaluru, South India
Abstract
Land use transformation in the rapidly growing megacity of Bengaluru in South India has greatly influenced its lake ecosystems. To gain insights into the dynamics of lake ecosystems along an urban-rural gradient, we analyzed lake-cover changes (along with a 300 m buffer zone) of six lakes from 2002 to 2022. The lakes studied were Bellandur and Dodda Bommasandra (urban), Attur and Puttenhalli (peri‑urban), and Chudahalli and Vrishabhavathi (rural). Supervised maximum likelihood Land Use/Land Cover (LULC) classifications were conducted on 162 freely available, RGB Google Earth (GE) images to distinguish between macrophytes, algae, water, and dried land inside the lakes, and built-up and non built-up area in the buffer zone. Antagonistic relationships between macrophytes and algae were observed at all locations. Rainfall was positively correlated with the wet surface area (that is macrophytes, algae, and water) in comparatively dry lakes. Similarly, air temperature was negatively correlated with the wet surface area except for the Vrishabhavathi Lake. However, the built-up area in the buffer zone did not show a consistent correlation with the wet surface area, most likely because of sewage connections of certain lakes with distant urban areas.
Sponsorship
Gefördert im Rahmen des Projekts DEALCitation
@article{doi:10.17170/kobra-2024083010773,
author={Sourav, Suman Kumar and Clements, Lily and Nguyen, Thanh Thi and Bürkert, Andreas},
title={Urbanization and seasonal effects on the lake ecosystem dynamics from 2002 to 2022 in Bengaluru, South India},
journal={Environmental Challenges},
year={2024}
}
0500 Oax
0501 Text $btxt$2rdacontent
0502 Computermedien $bc$2rdacarrier
1100 2024$n2024
1500 1/eng
2050 ##0##http://hdl.handle.net/123456789/16024
3000 Sourav, Suman Kumar
3010 Clements, Lily
3010 Nguyen, Thanh Thi
3010 Bürkert, Andreas
4000 Urbanization and seasonal effects on the lake ecosystem dynamics from 2002 to 2022 in Bengaluru, South India / Sourav, Suman Kumar
4030
4060 Online-Ressource
4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/16024=x R
4204 \$dAufsatz
4170
5550 {{Indien (Süd)}}
5550 {{Bangalore}}
5550 {{Verstädterung}}
5550 {{Google Earth}}
5550 {{Ökosystem}}
5550 {{See}}
5550 {{Feuchtgebiet}}
7136 ##0##http://hdl.handle.net/123456789/16024
<resource xsi:schemaLocation="http://datacite.org/schema/kernel-2.2 http://schema.datacite.org/meta/kernel-2.2/metadata.xsd"> 2024-09-04T14:27:43Z 2024-09-04T14:27:43Z 2024-05-18 doi:10.17170/kobra-2024083010773 http://hdl.handle.net/123456789/16024 Gefördert im Rahmen des Projekts DEAL eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ Google earth images lake vegetation urban-rural- gradient urban wetland 580 630 Urbanization and seasonal effects on the lake ecosystem dynamics from 2002 to 2022 in Bengaluru, South India Aufsatz Land use transformation in the rapidly growing megacity of Bengaluru in South India has greatly influenced its lake ecosystems. To gain insights into the dynamics of lake ecosystems along an urban-rural gradient, we analyzed lake-cover changes (along with a 300 m buffer zone) of six lakes from 2002 to 2022. The lakes studied were Bellandur and Dodda Bommasandra (urban), Attur and Puttenhalli (peri‑urban), and Chudahalli and Vrishabhavathi (rural). Supervised maximum likelihood Land Use/Land Cover (LULC) classifications were conducted on 162 freely available, RGB Google Earth (GE) images to distinguish between macrophytes, algae, water, and dried land inside the lakes, and built-up and non built-up area in the buffer zone. Antagonistic relationships between macrophytes and algae were observed at all locations. Rainfall was positively correlated with the wet surface area (that is macrophytes, algae, and water) in comparatively dry lakes. Similarly, air temperature was negatively correlated with the wet surface area except for the Vrishabhavathi Lake. However, the built-up area in the buffer zone did not show a consistent correlation with the wet surface area, most likely because of sewage connections of certain lakes with distant urban areas. open access Sourav, Suman Kumar Clements, Lily Nguyen, Thanh Thi Bürkert, Andreas doi:10.1016/j.envc.2024.100944 Indien (Süd) Bangalore Verstädterung Google Earth Ökosystem See Feuchtgebiet publishedVersion eissn:2667-0100 Environmental Challenges Volume 15 false 100944 </resource>
The following license files are associated with this item:
Except where otherwise noted, this item's license is described as Namensnennung 4.0 International