中国人口资源与环境
中國人口資源與環境
중국인구자원여배경
China Polulation.Resources and Environment
2012年
1期
28~34
,共null页
投入产出模型 CO2排放核算 重庆市
投入產齣模型 CO2排放覈算 重慶市
투입산출모형 CO2배방핵산 중경시
input-output modal; CO2 emission accounting; Chongqing
城市是人类生产和生活的中心，超过75％的温室气体从城市产生，其中又以城市产业部门能源消费和工业过程非能源产生的CO2为主。本文基于投入产出模型，评价城市产业部门3个不同层次的CO2排放。以重庆为案例。核算其2002—2008年产业部门兰个层次的CO2排放，包括能源消费直接排放、购买电力间接排放和全生命周期排放．并进行多层次对比。结果显示传统能源消耗和购买电力为对象的核算方法低估了产业部门CO2排放水平。2002—2008年，重庆各产业部门排放最逐年增加，碳排放强度整体量现下降趋势。煤炭开采和洗选韭、非金属矿采选业、非金属矿物制品业、电力、热力的生产和供应业，化学工业、金属冶炼及压延加工业、交通运输、仓储及邮电通讯业部门共7大行业是重庆碳排放的重点行业。部门交通设备制造业是重庆的优势产业，排放总誊大，但是排放强度却相对较小。因此应大力发展该产业以促进重庆市低碳经济的发展。
城市是人類生產和生活的中心，超過75％的溫室氣體從城市產生，其中又以城市產業部門能源消費和工業過程非能源產生的CO2為主。本文基于投入產齣模型，評價城市產業部門3箇不同層次的CO2排放。以重慶為案例。覈算其2002—2008年產業部門蘭箇層次的CO2排放，包括能源消費直接排放、購買電力間接排放和全生命週期排放．併進行多層次對比。結果顯示傳統能源消耗和購買電力為對象的覈算方法低估瞭產業部門CO2排放水平。2002—2008年，重慶各產業部門排放最逐年增加，碳排放彊度整體量現下降趨勢。煤炭開採和洗選韭、非金屬礦採選業、非金屬礦物製品業、電力、熱力的生產和供應業，化學工業、金屬冶煉及壓延加工業、交通運輸、倉儲及郵電通訊業部門共7大行業是重慶碳排放的重點行業。部門交通設備製造業是重慶的優勢產業，排放總謄大，但是排放彊度卻相對較小。因此應大力髮展該產業以促進重慶市低碳經濟的髮展。
성시시인류생산화생활적중심，초과75％적온실기체종성시산생，기중우이성시산업부문능원소비화공업과정비능원산생적CO2위주。본문기우투입산출모형，평개성시산업부문3개불동층차적CO2배방。이중경위안례。핵산기2002—2008년산업부문란개층차적CO2배방，포괄능원소비직접배방、구매전력간접배방화전생명주기배방．병진행다층차대비。결과현시전통능원소모화구매전력위대상적핵산방법저고료산업부문CO2배방수평。2002—2008년，중경각산업부문배방최축년증가，탄배방강도정체량현하강추세。매탄개채화세선구、비금속광채선업、비금속광물제품업、전력、열력적생산화공응업，화학공업、금속야련급압연가공업、교통운수、창저급유전통신업부문공7대행업시중경탄배방적중점행업。부문교통설비제조업시중경적우세산업，배방총등대，단시배방강도각상대교소。인차응대력발전해산업이촉진중경시저탄경제적발전。
As the center of human production and life, urban areas emitted more than 75% of the total greenhouse gas （ GHG）, in which, CO2 produced during the energy consumption and non-energy processes from industrial sector accounted for a large proportion. In this study, life cycle CO2 emission from industrial sector, which was categorized into three level emissions, was accounted based on input-output model the paper concluded that C02 emissions were underestimated by the existing accounting methods which are the direct emissions of final energy combustion and the indirect emissions of electricity and steam purchases. And then, input-output life cycle assessment method was chosen to evaluate the upstream carbon emissions of 28 economic sectors of Chongqing. We could see that the emissions of each sector in Chongqing increased year by year, but the overall carbon intensity declined. Meanwhile, seven sectors, namely, coal mining and dressing, nonmetal minerals mining and dressing, nonmetal mineral products, electricity, steam production and supply, chemical industry, smelting and pressing of metals, transportation, storage, postal and telecommunication services, are key sources of GHG emissions in Chongqing. In addition, while the life cycle CO2 emission of transportation equipment sector took the largest share, but the carbon intensity was relatively smaller. And the sector of transportation equipment was one of the advantageous industries in Chongqing, so it should be actively developed in future.
