沈阳市中心城区和市郊区能耗碳排放格局差异

以沈阳市和平区和沈北新区2个不同类型的城区创建国家可持续发展实验区为契机,对比分析了中心城区和市郊区能耗碳排放格局的差异,提出了针对不同区域的特点将碳减排纳入到实验区的可持续发展建设中.结果表明:中心城区和平区的能耗碳排放格局以原煤、电力和汽油的消耗为主,其中2006─2008年该区燃煤比重逐年下降,汽油比重逐年上升,电力排放总量虽缓慢增加但排放比重却有所下降;而对于郊区沈北新区而言,能耗碳排放格局则以燃煤和电力为主,其中燃煤比重逐年下降,而电力排放逐年上升.情景预测结果表明:到2015年和2020年,和平区CO2排放强度将分别达到1.16和1.11 t/(104元),比2006年分别下降23.2%和26.5%,不能实现2020年单位GDP CO2排放量比2005年下降40%～45%的减排目标;沈北新区CO2排放强度下降趋势明显,2015年和2020年将分别达到2.48和2.07 t/(104元),比2006年分别下降63.1%和69.3%,可实现40%～45%的CO2减排目标.讨论了中心城区和郊区碳排放格局的差异,并分别给出了适合的碳减排建议.

Differences of Energy Consumption and Carbon Emission Scenarios between Central City and Suburban Areas

There is currently a key opportunity to undertake planning projects at two different types of urban districts in Shenyang City-Heping District and Shenbei New District-which have been selected as national sustainable development demonstration areas.In this research,we compared carbon emission scenarios between the downtown and suburban areas of the city,and raised our recommendations for reducing total carbon emissions according to the characteristics of the studied regions.Our research outcomes indicate that coal burning,electricity consumption and gasoline consumption are the main sources of carbon emissions in Heping District,a downtown area.From 2006 to 2008,the percentage of coal burning decreased,while the percentage of gasoline consumption increased.The total carbon emission from electricity consumption slowly increased,but the emission ratio slowly decreased.As for Shenbei New District,coal burning andelectricity consumption were the main carbon emissionsources.From 2006 to 2008,the percentage of coal burningdecreased while the percentage of electricity consumptionincreased.We also set up low carbon development scenariosand conducted scenario analyses based upon currentsituations.Our prediction results indicate that the carbonemission intensity of Heping District will reach 1.16 t /(104RMB) GDP in 2015 and 1.11 t /(104 RMB) GDP in 2020,decreases of 23.2% and 26.5% respectively compared with2006.The realization of such a scenario cannot reach thenational 2020 carbon intensity reduction target(40%-45%).However,the carbon emission intensity of Shenbei New District will decrease significantly,reaching 2.48 t /(104 RMB) GDP in2015 and 2.07 t /(104 RMB) GDP in 2020,decreases of 63.1% and 69.3% respectively compared with 2006.It can reach the2020 national carbon intensity reduction target.Finally,carbon emission scenario differences between downtown and suburbanareas are discussed,and appropriate recommendations are presented in order to reach the national carbon intensity reduction target.