Regional sustainable development necessitates a holistic understanding of spatiotemporal variations in ecosystem carbon storage(ECS),particularly in ecologically sensitive areas with arid and semi-arid climate.In this...Regional sustainable development necessitates a holistic understanding of spatiotemporal variations in ecosystem carbon storage(ECS),particularly in ecologically sensitive areas with arid and semi-arid climate.In this study,we calculated the ECS in the Ningxia Section of Yellow River Basin,China from 1985 to 2020 using the Integrated Valuation of Ecosystem Services and Tradeoffs(InVEST)model based on land use data.We further predicted the spatial distribution of ECS in 2050 under four land use scenarios:natural development scenario(NDS),ecological protection scenario(EPS),cultivated land protection scenario(CPS),and urban development scenario(UDS)using the patch-generating land use simulation(PLUS)model,and quantified the influences of natural and human factors on the spatial differentiation of ECS using the geographical detector(Geodetector).Results showed that the total ECS of the study area initially increased from 1985 until reaching a peak at 402.36×10^(6) t in 2010,followed by a decreasing trend to 2050.The spatial distribution of ECS was characterized by high values in the eastern and southern parts of the study area,and low values in the western and northern parts.Between 1985 and 2020,land use changes occurred mainly through the expansion of cultivated land,woodland,and construction land at the expense of unused land.The total ECS in 2050 under different land use scenarios(ranked as EPS>CPS>NDS>UDS)would be lower than that in 2020.Nighttime light was the largest contributor to the spatial differentiation of ECS,with soil type and annual mean temperature being the major natural driving factors.Findings of this study could provide guidance on the ecological construction and high-quality development in arid and semi-arid areas.展开更多
储充换一体站(storage-charging-swapping integrated station,SCSIS)与综合能源楼宇(integrated energy buildings,IEB)结合将是未来多能建筑的重要形式之一。针对其协同运行展开研究,提出了一种SCSIS协同多IEB的低碳经济调度方法。首...储充换一体站(storage-charging-swapping integrated station,SCSIS)与综合能源楼宇(integrated energy buildings,IEB)结合将是未来多能建筑的重要形式之一。针对其协同运行展开研究,提出了一种SCSIS协同多IEB的低碳经济调度方法。首先,构建了SCSIS与多IEB组成的电能共享协同运行架构。其次,基于阶梯型碳交易机制在电能共享模式下建立了多主体协同的低碳经济调度模型。再次,为了最大化主体利益,以纳什谈判理论为依据,采用交替方向乘子法(alternating direction method of multipliers,ADMM)对电能共享价格进行求解。最后,通过算例对所提调度模型的可行性与有效性进行探讨。算例结果表明,通过引入电能共享与阶梯型碳交易机制,使得系统在兼顾经济性的前提下有效降低了碳排放,且证明ADMM对电能共享价格的求解具有较好的收敛性。展开更多
基金supported by the Innovation Projects for Overseas Returnees of Ningxia Hui Autonomous Region-Study on Multi-Scenario Land Use Optimization and Carbon Storage in the Ningxia Section of Yellow River Basin(202303)the National Natural Science Foundation of China(42067022,41761066)the Natural Science Foundation of Ningxia Hui Autonomous Region,China(2022AAC03024)。
文摘Regional sustainable development necessitates a holistic understanding of spatiotemporal variations in ecosystem carbon storage(ECS),particularly in ecologically sensitive areas with arid and semi-arid climate.In this study,we calculated the ECS in the Ningxia Section of Yellow River Basin,China from 1985 to 2020 using the Integrated Valuation of Ecosystem Services and Tradeoffs(InVEST)model based on land use data.We further predicted the spatial distribution of ECS in 2050 under four land use scenarios:natural development scenario(NDS),ecological protection scenario(EPS),cultivated land protection scenario(CPS),and urban development scenario(UDS)using the patch-generating land use simulation(PLUS)model,and quantified the influences of natural and human factors on the spatial differentiation of ECS using the geographical detector(Geodetector).Results showed that the total ECS of the study area initially increased from 1985 until reaching a peak at 402.36×10^(6) t in 2010,followed by a decreasing trend to 2050.The spatial distribution of ECS was characterized by high values in the eastern and southern parts of the study area,and low values in the western and northern parts.Between 1985 and 2020,land use changes occurred mainly through the expansion of cultivated land,woodland,and construction land at the expense of unused land.The total ECS in 2050 under different land use scenarios(ranked as EPS>CPS>NDS>UDS)would be lower than that in 2020.Nighttime light was the largest contributor to the spatial differentiation of ECS,with soil type and annual mean temperature being the major natural driving factors.Findings of this study could provide guidance on the ecological construction and high-quality development in arid and semi-arid areas.
文摘储充换一体站(storage-charging-swapping integrated station,SCSIS)与综合能源楼宇(integrated energy buildings,IEB)结合将是未来多能建筑的重要形式之一。针对其协同运行展开研究,提出了一种SCSIS协同多IEB的低碳经济调度方法。首先,构建了SCSIS与多IEB组成的电能共享协同运行架构。其次,基于阶梯型碳交易机制在电能共享模式下建立了多主体协同的低碳经济调度模型。再次,为了最大化主体利益,以纳什谈判理论为依据,采用交替方向乘子法(alternating direction method of multipliers,ADMM)对电能共享价格进行求解。最后,通过算例对所提调度模型的可行性与有效性进行探讨。算例结果表明,通过引入电能共享与阶梯型碳交易机制,使得系统在兼顾经济性的前提下有效降低了碳排放,且证明ADMM对电能共享价格的求解具有较好的收敛性。
