Supply of carbon sequestration of vegetation is estimated using the CASA model calculating NPP (net primary productivity). The organic carbon content of the upper soil is used as the annual supply of soil carbon sequestration services. The spatial distribution of carbon sequestration demand is measured from the perspective of carbon emissions. The supply-demand balance of carbon sequestration in the ecological barrier area of Inner Mongolia is analyzed. Based on this, the spatial pattern and flow rate of carbon sequestration are analyzed using ArcGIS by calculating the difference between carbon sinks (supply of carbon sequestration services) and carbon sources (demand for carbon sequestration services) to reveal the effectiveness of carbon sequestration services. The results show that carbon sequestration services in the study area are generally in excess of demand but exhibit significant spatial differences. Provincial capital cities and surrounding prefecture-level cities generally show a Bx＜0 pattern, indicating demand-driven regions and potential beneficiary areas of carbon sequestration in Inner Mongolia. The degree of demand is particularly evident in provincial capital cities. The actual benefit areas of carbon sequestration services in Inner Mongolia include the Beijing-Tianjin-Hebei urban agglomeration, Shanxi Province, Liaoning Province, Ningxia Hui Autonomous Region, Yulin City in Shaanxi Province, Zhangye City, Jinchang City, Wuwei City, and Baiyin City in Gansu Province. As an ecological barrier area, Inner Mongolia's carbon sequestration services have a significant carbon sink effect on the surrounding regions.
LIU Jingya
,
QIN Keyu
,
DONG Zhanfeng
. Analysis of carbon sequestration service effects in Inner Mongolia ecological barrier zone[J]. Science & Technology Review, 2024
, 42(7)
: 84
-92
.
DOI: 10.3981/j.issn.1000-7857.2023.08.01297
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