Carbon Balance and Management in Shaanxi Province Reveals Spatiotemporal Variations and Upward Trend

Strategic Insights -

Researchers from Northwest A&F University have conducted a comprehensive study on the spatiotemporal distributions and drivers of carbon monoxide (CO) in China's Shaanxi Province from 2013 to 2022. By integrating satellite remote sensing data with ground-based measurements, the study provides a unique dataset that enables enhanced resolution in exploring intra-annual, interannual, and spatial CO variations across the province. The research reveals pronounced seasonal CO cycles and a consistent upward trend over the past decade, with high CO regions predominantly found in the southern subtropical and temperate areas of Shaanxi.

Key Takeaways:

  • The study integrates satellite remote sensing data from the Orbiting Carbon Observatory-2 (OCO-2) and Fourier Transform Spectrometer (FTS) with ground-based measurements from the World Data Centre for Greenhouse Gases (WDCGG) Hong Kong ground station.
  • The results reveal pronounced seasonal CO cycles, with monthly concentrations oscillating between a minimum of 399.68 ± 6.58 ppm in August and peaking at 407.48 ± 6.58 ppm in April.
  • The study finds a consistent upward trend over the past decade, with an annual average CO increase of 4.12% from 396 to 412.34 ppm.
  • High CO regions are predominantly found in the southern subtropical and temperate areas of Shaanxi, with concentrations reaching 418.4 ppm in 2022.
  • The study highlights the importance of continued investigation into the factors underlying the observed variations in CO levels across Shaanxi Province.

Statistics:

  • CO concentrations in Shaanxi Province ranged from 399.68 ± 6.58 ppm in August 2013 to 412.34 ± 6.58 ppm in August 2022.
  • The annual average CO increased by 4.12% over the past decade, from 396 to 412.34 ppm.
  • High CO regions were found in the southern subtropical and temperate areas of Shaanxi, with concentrations reaching 418.4 ppm in 2022.

Sources:

  • Spatiotemporal evaluation of atmospheric CO2 fluctuations in Shaanxi Province (2013-2022) utilizing multi-source satellite remote sensing data. Carbon Balance and Management, 2025;20(1):39.