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<p>Soil organic carbon (SOC) and vegetation cover are critical indicators of ecosystem health, playing a vital role in mitigating climate change through carbon sequestration and enhancing land productivity. This study aimed to assess the spatial and temporal effects of the Green Legacy Initiative (GLI) on SOC distribution and related biophysical parameters between 2018 and 2025. A geospatial approach integrating Landsat-derived indices: Soil Organic Carbon (SOC), Normalized Difference Vegetation Index (NDVI), Normalized Difference Moisture Index (NDMI), Bare Soil Index (BSI), and Land Surface Temperature (LST)&#xa0;were used. Results revealed that very high SOC was increased by 7.7% from 2018 to 2025. In comparison, maximum bare soil coverage declined significantly over the study period. NDVI value steadily increased, reflecting enhanced vegetation density and health, while NDMI indicated improved and stabilized moisture conditions. Simultaneously, LST dropped from 12.3&#xa0;°C in 2022, highlighting improved microclimatic conditions. Correlation results showed strong positive correlations between SOC and vegetation cover (NDVI), as well as strong negative correlations with bare soil index (BSI). Overall, the findings demonstrate that the GLI has effectively enhanced soil carbon sequestration, vegetation cover, and soil moisture, while reducing heat stress. It is recommended that such restoration programs be expanded and coupled with continuous geospatial monitoring to sustain the benefits of climate change mitigation and ecosystem resilience.</p>

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Geospatial evidence of enhanced soil carbon storage, moisture stability, and microclimate mitigation under Ethiopia’s green legacy initiative

  • 期刊论文

  • 发表日期：

    2026年2月16日

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  • Mitiku Badasa Moisa,
  • Birhanu Iticha,
  • Fedhasa Benti Chalchissa,
  • Zenebe Reta Roba,
  • Harison Kiplagat Kipkulei,
  • Kiros Tsegay Deribew,
  • Dessalegn Obsi Gemeda,
  • Aqil Tariq

摘要

Soil organic carbon (SOC) and vegetation cover are critical indicators of ecosystem health, playing a vital role in mitigating climate change through carbon sequestration and enhancing land productivity. This study aimed to assess the spatial and temporal effects of the Green Legacy Initiative (GLI) on SOC distribution and related biophysical parameters between 2018 and 2025. A geospatial approach integrating Landsat-derived indices: Soil Organic Carbon (SOC), Normalized Difference Vegetation Index (NDVI), Normalized Difference Moisture Index (NDMI), Bare Soil Index (BSI), and Land Surface Temperature (LST) were used. Results revealed that very high SOC was increased by 7.7% from 2018 to 2025. In comparison, maximum bare soil coverage declined significantly over the study period. NDVI value steadily increased, reflecting enhanced vegetation density and health, while NDMI indicated improved and stabilized moisture conditions. Simultaneously, LST dropped from 12.3 °C in 2022, highlighting improved microclimatic conditions. Correlation results showed strong positive correlations between SOC and vegetation cover (NDVI), as well as strong negative correlations with bare soil index (BSI). Overall, the findings demonstrate that the GLI has effectively enhanced soil carbon sequestration, vegetation cover, and soil moisture, while reducing heat stress. It is recommended that such restoration programs be expanded and coupled with continuous geospatial monitoring to sustain the benefits of climate change mitigation and ecosystem resilience.