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Updated: Feb 17, 2026

Monitoring Pedogenic Inorganic Carbon Accumulation Due to Weathering of Amended Silicate Minerals in Agricultural Soils.
Published on: June 4, 2021
Geospatial evidence of enhanced soil carbon storage, moisture stability, and microclimate mitigation under Ethiopia's
Mitiku Badasa Moisa1,2, Birhanu Iticha3, Fedhasa Benti Chalchissa4,5
1Department of Earth Science, College of Natural and Computational Science, Wollega University, Nekemte Campus, Nekemte, Ethiopia. mitikubadasa10@gmail.com.
Abstract:
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.
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