article · Wetlands
This study examined how land use and land cover changes affected blue carbon stocks in the coastal ecosystem of Jazan, Saudi Arabia, between 2009 and 2021. Researchers used a land use dynamic model and the InVEST programme to assess these changes. The findings showed a significant decrease in carbon stocks from 2009 to 2013, primarily due to a reduction in mangroves and an increase in built-up areas, which reflected higher atmospheric carbon dioxide emissions. This initial decline represented a substantial financial loss. Although carbon stocks showed some recovery between 2013 and 2021, the research highlights the critical need for conservation policies to mitigate land use change in coastal environments.
Coastal ecosystems are vital for storing carbon, which helps regulate the climate. Understanding how human activities like urban development and mangrove destruction affect these carbon stores is crucial. This research provides evidence for policy makers to implement conservation strategies, protecting these valuable natural assets and their climate benefits.
The abstract does not indicate a direct application pathway for commercialisation. It primarily recommends that land-use policy makers and environmental government agencies implement conservation policies to reduce land use change in coastal ecosystems.
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Abstract Coastal ecosystems are characterized by high content of soil carbon storage; however, they experience severe land conversions in the past decades. The current study aims to examine how different land use/land cover (LU/LC) impact carbon stock in coastal ecosystem along Jazan coast, Saudi Arabia. In this study, impacts of LU/LC on carbon stocks in the coastal zone of Jazan, Saudi Arabia in 2009, 2013, and 2021 were assessed. Also, the LU/LC dynamics were evaluated using data provided by the land use dynamic model. The carbon stocks were modelled based on LU/LC using the InVEST program. Our study results showed that the decrease in mangroves from 2013 to 2021 reflects the high atmospheric emissions of carbon dioxide (CO 2 ). Also, the increase in built-up areas might negatively impact total carbon stock. The estimated carbon stocks for the coastal zone of Jazan biome were 7279027.42 Mg C in 2009 (1Mg = 10 6 g). It decreased to 2827817.84 Mg C in 2013, with a total loss of − 4450675.40 Mg C, and an average of annual loss of − 1,112,669 Mg C in the study period with net value of − 461240790.53 US$. On the other hand, the total estimated carbon stock was increased from 2013 to 2021 with a 3772968.31 Mg C in 2021 (a total gain 944840.87 Mg C). Based on the current findings, we recommend that land-use-policy makers and environmental government agencies should implement conservation policies to reduce land use change at Jazan coastal ecosystems.
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DOI: 10.1007/s13157-022-01597-9
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