Assessing Land Use / Land Cover Changes Using GIS and Remotely Sensed Techniques (RST): A Case Study of the Etoa Clay Quarry Yaounde, Cameroon

Linda Lekuna Duna; Nzeukou Nzeugang Aubin; Fen Florence Fombutu; Pierre François Djocgoue

doi:doi:10.11648/j.ijema.20210902.13

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Assessing Land Use / Land Cover Changes Using GIS and Remotely Sensed Techniques (RST): A Case Study of the Etoa Clay Quarry Yaounde, Cameroon

Linda Lekuna Duna, Nzeukou Nzeugang Aubin, Fen Florence Fombutu, Pierre François Djocgoue

Published in International Journal of Environmental Monitoring and Analysis (Volume 9, Issue 2)

Received: 16 March 2021 Accepted: 1 April 2021 Published: 29 April 2021

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Abstract

This study highlights the use of Remote Sensing to detect environmental changes obtained on Land Use / land Cover Changes in the Etoa clay quarry, neighboring the town of Yaounde (Cameroon) during a period of 26 years (1989-2015). Remotely sensed data in the form of Landsat image and pattern classification were used to create maps. For accuracy Google Earth was used as a reference to yield data. The post classification change detection method was used to value the land cover change with the clay quarry. Land use of the urban growth was estimated by time series analysis of satellite Landsat images. Spectral indices calculated from the images were used to evaluate change in buildup area, vegetation and hydrology. Results show that vegetation, covers 200 hectares of land, build up area 240 hectares and hydrology 185 hectares. The change analysis between 1989-2015 showed a decreasing trend in vegetation from 69% to 32% (a decrease in 37% vegetation cover), hydrology from 14% to 30% (thus a 16% increase in water bodies) and build up area from 17% to 38% (a 21% increase). The excavation of clay materials increases every year leaving behind many dangerous clay pits filled with water which calls for concern.

Published in	International Journal of Environmental Monitoring and Analysis (Volume 9, Issue 2)
DOI	10.11648/j.ijema.20210902.13
Page(s)	45-53
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Land Use / Land Cover Change, Geographic Information System, Remote Sensing, Image Classification, Clay Quarry, Yaounde

References

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APA Style

Linda Lekuna Duna, Nzeukou Nzeugang Aubin, Fen Florence Fombutu, Pierre François Djocgoue. (2021). Assessing Land Use / Land Cover Changes Using GIS and Remotely Sensed Techniques (RST): A Case Study of the Etoa Clay Quarry Yaounde, Cameroon. International Journal of Environmental Monitoring and Analysis, 9(2), 45-53. https://doi.org/10.11648/j.ijema.20210902.13

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ACS Style

Linda Lekuna Duna; Nzeukou Nzeugang Aubin; Fen Florence Fombutu; Pierre François Djocgoue. Assessing Land Use / Land Cover Changes Using GIS and Remotely Sensed Techniques (RST): A Case Study of the Etoa Clay Quarry Yaounde, Cameroon. Int. J. Environ. Monit. Anal. 2021, 9(2), 45-53. doi: 10.11648/j.ijema.20210902.13

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AMA Style

Linda Lekuna Duna, Nzeukou Nzeugang Aubin, Fen Florence Fombutu, Pierre François Djocgoue. Assessing Land Use / Land Cover Changes Using GIS and Remotely Sensed Techniques (RST): A Case Study of the Etoa Clay Quarry Yaounde, Cameroon. Int J Environ Monit Anal. 2021;9(2):45-53. doi: 10.11648/j.ijema.20210902.13

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@article{10.11648/j.ijema.20210902.13,
  author = {Linda Lekuna Duna and Nzeukou Nzeugang Aubin and Fen Florence Fombutu and Pierre François Djocgoue},
  title = {Assessing Land Use / Land Cover Changes Using GIS and Remotely Sensed Techniques (RST): A Case Study of the Etoa Clay Quarry Yaounde, Cameroon},
  journal = {International Journal of Environmental Monitoring and Analysis},
  volume = {9},
  number = {2},
  pages = {45-53},
  doi = {10.11648/j.ijema.20210902.13},
  url = {https://doi.org/10.11648/j.ijema.20210902.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijema.20210902.13},
  abstract = {This study highlights the use of Remote Sensing to detect environmental changes obtained on Land Use / land Cover Changes in the Etoa clay quarry, neighboring the town of Yaounde (Cameroon) during a period of 26 years (1989-2015). Remotely sensed data in the form of Landsat image and pattern classification were used to create maps. For accuracy Google Earth was used as a reference to yield data. The post classification change detection method was used to value the land cover change with the clay quarry. Land use of the urban growth was estimated by time series analysis of satellite Landsat images. Spectral indices calculated from the images were used to evaluate change in buildup area, vegetation and hydrology. Results show that vegetation, covers 200 hectares of land, build up area 240 hectares and hydrology 185 hectares. The change analysis between 1989-2015 showed a decreasing trend in vegetation from 69% to 32% (a decrease in 37% vegetation cover), hydrology from 14% to 30% (thus a 16% increase in water bodies) and build up area from 17% to 38% (a 21% increase). The excavation of clay materials increases every year leaving behind many dangerous clay pits filled with water which calls for concern.},
 year = {2021}
}

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TY  - JOUR
T1  - Assessing Land Use / Land Cover Changes Using GIS and Remotely Sensed Techniques (RST): A Case Study of the Etoa Clay Quarry Yaounde, Cameroon
AU  - Linda Lekuna Duna
AU  - Nzeukou Nzeugang Aubin
AU  - Fen Florence Fombutu
AU  - Pierre François Djocgoue
Y1  - 2021/04/29
PY  - 2021
N1  - https://doi.org/10.11648/j.ijema.20210902.13
DO  - 10.11648/j.ijema.20210902.13
T2  - International Journal of Environmental Monitoring and Analysis
JF  - International Journal of Environmental Monitoring and Analysis
JO  - International Journal of Environmental Monitoring and Analysis
SP  - 45
EP  - 53
PB  - Science Publishing Group
SN  - 2328-7667
UR  - https://doi.org/10.11648/j.ijema.20210902.13
AB  - This study highlights the use of Remote Sensing to detect environmental changes obtained on Land Use / land Cover Changes in the Etoa clay quarry, neighboring the town of Yaounde (Cameroon) during a period of 26 years (1989-2015). Remotely sensed data in the form of Landsat image and pattern classification were used to create maps. For accuracy Google Earth was used as a reference to yield data. The post classification change detection method was used to value the land cover change with the clay quarry. Land use of the urban growth was estimated by time series analysis of satellite Landsat images. Spectral indices calculated from the images were used to evaluate change in buildup area, vegetation and hydrology. Results show that vegetation, covers 200 hectares of land, build up area 240 hectares and hydrology 185 hectares. The change analysis between 1989-2015 showed a decreasing trend in vegetation from 69% to 32% (a decrease in 37% vegetation cover), hydrology from 14% to 30% (thus a 16% increase in water bodies) and build up area from 17% to 38% (a 21% increase). The excavation of clay materials increases every year leaving behind many dangerous clay pits filled with water which calls for concern.
VL  - 9
IS  - 2
ER  -

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Author Information

Linda Lekuna Duna

Department of Research, Ministry of Scientific Research and Innovations/Local Material Promotion Authority, Yaounde, Cameroon
Nzeukou Nzeugang Aubin

Department of Earth Sciences, University of Maroua, Maroua, Cameroon
Fen Florence Fombutu

Department of Geography, University of Yaounde 1, Yaounde, Cameroon
Pierre François Djocgoue

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APA Style

Linda Lekuna Duna, Nzeukou Nzeugang Aubin, Fen Florence Fombutu, Pierre François Djocgoue. (2021). Assessing Land Use / Land Cover Changes Using GIS and Remotely Sensed Techniques (RST): A Case Study of the Etoa Clay Quarry Yaounde, Cameroon. International Journal of Environmental Monitoring and Analysis, 9(2), 45-53. https://doi.org/10.11648/j.ijema.20210902.13

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ACS Style

Linda Lekuna Duna; Nzeukou Nzeugang Aubin; Fen Florence Fombutu; Pierre François Djocgoue. Assessing Land Use / Land Cover Changes Using GIS and Remotely Sensed Techniques (RST): A Case Study of the Etoa Clay Quarry Yaounde, Cameroon. Int. J. Environ. Monit. Anal. 2021, 9(2), 45-53. doi: 10.11648/j.ijema.20210902.13

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AMA Style

Linda Lekuna Duna, Nzeukou Nzeugang Aubin, Fen Florence Fombutu, Pierre François Djocgoue. Assessing Land Use / Land Cover Changes Using GIS and Remotely Sensed Techniques (RST): A Case Study of the Etoa Clay Quarry Yaounde, Cameroon. Int J Environ Monit Anal. 2021;9(2):45-53. doi: 10.11648/j.ijema.20210902.13

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@article{10.11648/j.ijema.20210902.13,
  author = {Linda Lekuna Duna and Nzeukou Nzeugang Aubin and Fen Florence Fombutu and Pierre François Djocgoue},
  title = {Assessing Land Use / Land Cover Changes Using GIS and Remotely Sensed Techniques (RST): A Case Study of the Etoa Clay Quarry Yaounde, Cameroon},
  journal = {International Journal of Environmental Monitoring and Analysis},
  volume = {9},
  number = {2},
  pages = {45-53},
  doi = {10.11648/j.ijema.20210902.13},
  url = {https://doi.org/10.11648/j.ijema.20210902.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijema.20210902.13},
  abstract = {This study highlights the use of Remote Sensing to detect environmental changes obtained on Land Use / land Cover Changes in the Etoa clay quarry, neighboring the town of Yaounde (Cameroon) during a period of 26 years (1989-2015). Remotely sensed data in the form of Landsat image and pattern classification were used to create maps. For accuracy Google Earth was used as a reference to yield data. The post classification change detection method was used to value the land cover change with the clay quarry. Land use of the urban growth was estimated by time series analysis of satellite Landsat images. Spectral indices calculated from the images were used to evaluate change in buildup area, vegetation and hydrology. Results show that vegetation, covers 200 hectares of land, build up area 240 hectares and hydrology 185 hectares. The change analysis between 1989-2015 showed a decreasing trend in vegetation from 69% to 32% (a decrease in 37% vegetation cover), hydrology from 14% to 30% (thus a 16% increase in water bodies) and build up area from 17% to 38% (a 21% increase). The excavation of clay materials increases every year leaving behind many dangerous clay pits filled with water which calls for concern.},
 year = {2021}
}

Copy | Download

TY  - JOUR
T1  - Assessing Land Use / Land Cover Changes Using GIS and Remotely Sensed Techniques (RST): A Case Study of the Etoa Clay Quarry Yaounde, Cameroon
AU  - Linda Lekuna Duna
AU  - Nzeukou Nzeugang Aubin
AU  - Fen Florence Fombutu
AU  - Pierre François Djocgoue
Y1  - 2021/04/29
PY  - 2021
N1  - https://doi.org/10.11648/j.ijema.20210902.13
DO  - 10.11648/j.ijema.20210902.13
T2  - International Journal of Environmental Monitoring and Analysis
JF  - International Journal of Environmental Monitoring and Analysis
JO  - International Journal of Environmental Monitoring and Analysis
SP  - 45
EP  - 53
PB  - Science Publishing Group
SN  - 2328-7667
UR  - https://doi.org/10.11648/j.ijema.20210902.13
AB  - This study highlights the use of Remote Sensing to detect environmental changes obtained on Land Use / land Cover Changes in the Etoa clay quarry, neighboring the town of Yaounde (Cameroon) during a period of 26 years (1989-2015). Remotely sensed data in the form of Landsat image and pattern classification were used to create maps. For accuracy Google Earth was used as a reference to yield data. The post classification change detection method was used to value the land cover change with the clay quarry. Land use of the urban growth was estimated by time series analysis of satellite Landsat images. Spectral indices calculated from the images were used to evaluate change in buildup area, vegetation and hydrology. Results show that vegetation, covers 200 hectares of land, build up area 240 hectares and hydrology 185 hectares. The change analysis between 1989-2015 showed a decreasing trend in vegetation from 69% to 32% (a decrease in 37% vegetation cover), hydrology from 14% to 30% (thus a 16% increase in water bodies) and build up area from 17% to 38% (a 21% increase). The excavation of clay materials increases every year leaving behind many dangerous clay pits filled with water which calls for concern.
VL  - 9
IS  - 2
ER  -

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