Abstract
The functional structure of territorial space is an important factor affecting the regional carbon cycle. The article explores the interaction mechanism between the functional structure of territorial space and carbon sources and carbon sinks, constructs a model for measuring and calculating territorial spatial carbon sources and carbon sinks, and investigates land changes in Sichuan Province, etc. Based on the data, the spatial carbon emission and absorption of Sichuan from 2010 to 2017 were calculated, and the carbon source carbon aggregate amount, structural composition and intensity change trend were analysed. The results show that changes in the spatial land use structure of Sichuan are closely related to carbon emissions, and the increase in construction land is the main reason for the substantial increase in carbon emissions. Finally, in combination with the vision and goals of "carbon neutrality", relevant optimization suggestions were put forward for the land and space planning of Sichuan Province.
Highlights
The increase in carbon emissions is the main cause of disastrous weather and climate such as the greenhouse effect, heat waves, and sea level rise
This study takes Sichuan Province as an example, analyses the changing trends of territorial and spatial carbon sources and carbon sinks over the years, and proposes relevant suggestions for optimizing the territorial space of Sichuan based on this, in order to provide a reference for promoting the implementation of the concept of carbon neutrality in territorial and spatial planning
The direct calculation method is based on the sum of the carbon dioxide emissions generated by various production and construction activities on the construction land; the indirect calculation method is based on the use of coal, natural gas and other energy consumption for various activities to convert into carbon emissions or according to the energy consumption standard of 10,000 yuan GDP Indirectly converted to carbon emissions
Summary
The increase in carbon emissions is the main cause of disastrous weather and climate such as the greenhouse effect, heat waves, and sea level rise. The change in the structure of national land space and land use is an important factor affecting the carbon cycle, and it is a carbon emission source second only to fossil fuels [1]. Some scholars have studied the carbon emission effects of Zhejiang, Liaoning and other provinces [3-4], established the relationship between energy consumption and land use, and calculated the carbon emissions of different land use types. This study takes Sichuan Province as an example, analyses the changing trends of territorial and spatial carbon sources and carbon sinks over the years, and proposes relevant suggestions for optimizing the territorial space of Sichuan based on this, in order to provide a reference for promoting the implementation of the concept of carbon neutrality in territorial and spatial planning
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