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Climate Change and Land Use Dynamics in Djirnda Commune (Fatick Region - Senegal): Remote Sensing Approach

Author

Listed:
  • Mbagnick Faye

    (Cheikh Anta DIOP University, Senegal)

  • Dome Tine

    (Cheikh Anta DIOP University, Senegal)

  • Fatou Diouf

    (Cheikh Anta DIOP University, Senegal)

  • Adam Cissay

    (Wetlands International Africa, Senegal)

  • Cheikh Sadibou Faye

    (Thies Polytechnic School, Senegal)

Abstract

Climate change is one of the greatest challenges of our time. It is a real and rapid phenomenon which, perhaps, does not dramatically affect people today but will certainly have harmful effects on future generations. It has led to the weakening of ecosystems and accelerated the degradation of natural resources. This situation has prompted the scientific world to sound the alarm to warn of its environmental and socio-economic impacts. This study seeks to analyze the dynamics of land use in Djirnda municipality in climate change. A pixel-based classification approach and the maximum likelihood algorithm were retained. The data used concerns Landsat images from 1986, 2000 and 2015. The post-classification comparison method is used to detect changes in the classified images. The overall accuracy of the classifications gives satisfactory results with 90 % for 1986, 89 % for 2000 and 91 % for 2015 and a respective Kappa coefficient of 89 %, 85 % and 90 %. The results of land use dynamics revealed an increase in mangroves (1553.13 ha) and salt lands (957.15 ha), and a regression in water surface (- 458.64 ha) and mudflats (- 2051.64 ha).

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Handle: RePEc:epw:ejbio0:v:3:y:2022:i:4:id:17375
DOI: 10.24018/ejbio.2022.3.4.375
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