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CO2 sequestration is the main pathway to achieve the carbon neutrality goal, i.e., terrestrial vegetation absorbs and fixes it through photosynthesis to increase carbon sequestration and regulate the climate and environmental changes. Among them, vegetation cover variability and land use changes caused by material, social development, and human economic activities have become the main reasons for altering the total amount of carbon sequestered by terrestrial vegetation. Based on the objective descriptions in the previous chapters of this study, the change characteristics of total vegetation carbon sequestration, district and grid distribution characteristics in China have been more comprehensively and systematically presented from the perspectives of humanities, economy and regional geography, and the distribution descriptions and evolution laws of vegetation carbon sequestration in China by different products. Therefore, exploring the decomposition of factors affecting the total change of vegetation carbon sequestration and the transformation of distribution patterns is of great practical significance and application value for understanding and grasping vegetation carbon sequestration in China. (1) Compared with the factor decomposition at the provincial and municipal scales, the decomposition of total vegetation carbon sequestration and distribution characteristics at the county level in this chapter can help present more specific and heterogeneous characteristics to observe the carbon sequestration characteristics at the county scale. (2) This chapter focuses on taking advantage of remote sensing satellite data and spatial visualization technology, i.e., combining three high-precision satellite products to decompose the impacts of vegetation cover structure and land use changes on total vegetation carbon sequestration at the county level in China. (3) Exploring the drivers of vegetation carbon sequestration at the county level based on the two-layer nested decomposition technique will help to present the carbon sequestration intensity of different vegetation cover types of farmlands, woodland, and grassland and to examine the long-term impacts of different vegetation cover characteristics on terrestrial carbon sinks over the past 20 years in China.

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Decomposition Factors of Carbon Sequestration by Vegetation in China Under the County Perspective

  • 章节

  • 发表日期：

    2025年

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  • Jiandong Chen,
  • Zhiwen Li,
  • Malin Song,
  • Ying Feng

摘要

CO2 sequestration is the main pathway to achieve the carbon neutrality goal, i.e., terrestrial vegetation absorbs and fixes it through photosynthesis to increase carbon sequestration and regulate the climate and environmental changes. Among them, vegetation cover variability and land use changes caused by material, social development, and human economic activities have become the main reasons for altering the total amount of carbon sequestered by terrestrial vegetation. Based on the objective descriptions in the previous chapters of this study, the change characteristics of total vegetation carbon sequestration, district and grid distribution characteristics in China have been more comprehensively and systematically presented from the perspectives of humanities, economy and regional geography, and the distribution descriptions and evolution laws of vegetation carbon sequestration in China by different products. Therefore, exploring the decomposition of factors affecting the total change of vegetation carbon sequestration and the transformation of distribution patterns is of great practical significance and application value for understanding and grasping vegetation carbon sequestration in China. (1) Compared with the factor decomposition at the provincial and municipal scales, the decomposition of total vegetation carbon sequestration and distribution characteristics at the county level in this chapter can help present more specific and heterogeneous characteristics to observe the carbon sequestration characteristics at the county scale. (2) This chapter focuses on taking advantage of remote sensing satellite data and spatial visualization technology, i.e., combining three high-precision satellite products to decompose the impacts of vegetation cover structure and land use changes on total vegetation carbon sequestration at the county level in China. (3) Exploring the drivers of vegetation carbon sequestration at the county level based on the two-layer nested decomposition technique will help to present the carbon sequestration intensity of different vegetation cover types of farmlands, woodland, and grassland and to examine the long-term impacts of different vegetation cover characteristics on terrestrial carbon sinks over the past 20 years in China.