The text describes the supply and demand of Carbon Sequestration Services (CSS) in the Chongqing area, China, from 2000 to 2020. The CSSF assessment is based on the carbon sequestration and carbon sequestration services provided by four subsystems: water, forest, farmland, and grassland.
The supply of CSS is divided into two main components: carbon sequestration and carbon sequestration services. The carbon sequestration is the process of capturing and storing carbon dioxide (CO2) in natural systems, while carbon sequestration services refer to the services provided by natural ecosystems to mitigate climate change.
The results show that the primary sources of NPP (Net Primary Production) are forest and farmland, and the primary sources of CE (Carbon Sequestration) are farmland and water. The water subsystem recorded relatively high NPP levels in the Yunnan River Basin, while the forest subsystem recorded high NPP levels in the Sichuan and North China provinces. The farmland subsystem recorded higher NPP levels in the North China province, and the grassland subsystem recorded high NPP levels in the North China province.
The demand for CSS is also divided into two main components: carbon sequestration and carbon sequestration services. The results show that the primary demand for CE is from farmland, and the primary demand for carbon sequestration services is from forest and water.
The text also discusses the metacoupling and intracoupling of CSSF in the Chongqing area. The metacoupling is the co-evolution of the supply and demand of CSS, while the intracoupling is the internal dynamics of the CSSF system. The results show that the total flow of CSSF initially increases and then decreases, with a significant decrease in the supply area and a significant increase in the demand area.
The text also presents three scenarios for the future development of CSSF in Chongqing: the business-as-usual scenario, the low-carbon scenario, and the carbon-neutral scenario. The results show that the low-carbon scenario is the most effective in reducing the demand for CSS, while the carbon-neutral scenario is the most effective in increasing the supply of CE.
Overall, the text provides a comprehensive assessment of the supply and demand of CSSF in the Chongqing area, highlighting the importance of understanding the dynamics of CSSF for effective climate change mitigation and adaptation.