The effect of regional land use carbon emissions on a long-term scale in the Qingjiang Basin based on GIS

doi:10.14088/j.cnki.issn0439-8114.2024.11.008

Abstract

Abstract: Based on the land use data of Qingjiang Basin of the Poyang Lake Basin of Jiangxi Province from 1930 to 2010, combined with the carbon emission coefficient and STIRPAT model, the change process and influencing factors of carbon emission in the study area during this period were discussed. The results indicated that the net carbon emissions increased from 43 312.9 tons to 87 412.3 tons from 1930 to 2010. The carbon source increased from 46 331.0 tons to 97 816.2 tons. The carbon sink had changed from 3 018.1 tons to 10 403.9 tons. Regression analysis showed that the proportion of carbon sinks had generally been increasing from 1930 to 2010. The changes in arable land, grassland, water bodies and unused land were not significant, while the changes in forest land and construction land were significant. The analysis results of the STIRPAT model showed that arable land and construction land were the main driving factors for the increase in land use carbon emissions in the Qingjiang Basin from 1930 to 2010. For every 1% increase in arable land and construction land, carbon emissions increased by 5.250% and 0.688%, respectively.

Key words: land use, carbon emission effect, long-term scale, Qingjiang Basin, GIS

CLC Number:

F301.2
X321

WAN Zhi-wei, ZHANG Cheng-hao, LI Xiu-juan, ZHANG Zhi. The effect of regional land use carbon emissions on a long-term scale in the Qingjiang Basin based on GIS[J]. HUBEI AGRICULTURAL SCIENCES, 2024, 63(11): 43-46.

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