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        中國(guó)城鎮(zhèn)化與區(qū)域居民生活直接用能研究

        2015-01-13 18:28:03樊靜麗劉健張賢
        關(guān)鍵詞:城鎮(zhèn)化

        樊靜麗+劉健+張賢

        摘要我國(guó)城鎮(zhèn)化進(jìn)程持續(xù)加快,1996年以來(lái)年均增長(zhǎng)1.4個(gè)百分點(diǎn),同時(shí),居民生活直接能源消費(fèi)快速增長(zhǎng)。區(qū)域發(fā)展不平衡使各區(qū)域城鎮(zhèn)化水平與居民生活直接用能存在差異。本文探討2000-2011年間城鎮(zhèn)化進(jìn)程對(duì)各區(qū)域居民生活直接用能的影響規(guī)律。根據(jù)Divisia指數(shù)分解法,將居民生活直接用能變化分解為人口增長(zhǎng)效應(yīng)、城鎮(zhèn)化率增加效應(yīng)、城鎮(zhèn)居民人均生活用能變化效應(yīng)和農(nóng)村居民人均生活用能變化效應(yīng)。著重分析了東、中、西部區(qū)域城鎮(zhèn)化率增加對(duì)區(qū)域生活直接用能總量變化、各類(lèi)型能源品種變化的貢獻(xiàn)及邊際貢獻(xiàn)。結(jié)果發(fā)現(xiàn):①2000-2011年間,城鎮(zhèn)化進(jìn)程對(duì)東、中、西部和東北區(qū)域居民生活直接用能的貢獻(xiàn)分別為4.2%,20.6%,4.1%,-0.01%,人口結(jié)構(gòu)的變動(dòng)對(duì)中部居民直接用能的拉動(dòng)作用明顯;②城鎮(zhèn)化率每提高一個(gè)百分點(diǎn),對(duì)各區(qū)域間生活直接用能貢獻(xiàn)差別不大,其中,對(duì)東部區(qū)域增量貢獻(xiàn)最小;③與其他區(qū)域不同,中部區(qū)域城鎮(zhèn)化進(jìn)程對(duì)煤炭消費(fèi)有增量貢獻(xiàn);東、中部區(qū)域城鎮(zhèn)化進(jìn)程對(duì)油品消費(fèi)增量的貢獻(xiàn)是西部區(qū)域的3-4倍;東部區(qū)域城鎮(zhèn)化進(jìn)程對(duì)電力消費(fèi)增量的貢獻(xiàn)接近0;④城鎮(zhèn)化率每增加一個(gè)百分點(diǎn),對(duì)東部地區(qū)油品消費(fèi)增量貢獻(xiàn)分別是中西部區(qū)域的1.9和2.3倍;對(duì)天然氣和熱力消費(fèi)增量貢獻(xiàn)的情況類(lèi)似,均是西部區(qū)域最高,是東部和中部1.4-2.6倍。研究結(jié)論對(duì)城鎮(zhèn)化進(jìn)程下開(kāi)展區(qū)域能源管理、節(jié)能減排具有指導(dǎo)意義。

        關(guān)鍵詞城鎮(zhèn)化;生活直接用能;Divisia分解

        中圖分類(lèi)號(hào)F062.1;X24文獻(xiàn)標(biāo)識(shí)碼A

        文章編號(hào)1002-2104(2015)01-0055-06doi:10.3969/j.issn.1002-2104.2015.01.008

        在過(guò)去三十余年,我國(guó)城鎮(zhèn)化進(jìn)程不斷加快,城鎮(zhèn)化率從1980年的19.4%增加到2011年的51.3%;尤其是1996年以來(lái),城鎮(zhèn)化率年均增長(zhǎng)1.4個(gè)百分點(diǎn),明顯高于過(guò)去(1980-1995年)年均增長(zhǎng)0.6個(gè)百分點(diǎn)的增長(zhǎng)速度。未來(lái)幾十年,我國(guó)將繼續(xù)城鎮(zhèn)化進(jìn)程,據(jù)“世界城市展望”估計(jì),到2050年城鎮(zhèn)化水平將達(dá)到77.3%[1]。城鎮(zhèn)化進(jìn)程伴隨著能源需求的快速增長(zhǎng),1980年以來(lái)我國(guó)能源消費(fèi)總量和居民生活能源消費(fèi)量總體上保持較快增長(zhǎng),2000年以來(lái)增長(zhǎng)尤為顯著,年均增速均在8%以上。二元經(jīng)濟(jì)和區(qū)域發(fā)展不平衡是我國(guó)長(zhǎng)期以來(lái)的社會(huì)經(jīng)濟(jì)發(fā)展特征,城鄉(xiāng)居民、各區(qū)域居民之間收入水平、生活條件、基礎(chǔ)設(shè)施建設(shè)等方面存在較大差異,進(jìn)而表現(xiàn)出不同的生活能源消費(fèi)水平、能源消費(fèi)結(jié)構(gòu)。研究探討各區(qū)域城鎮(zhèn)化對(duì)能源消費(fèi)的貢獻(xiàn)效應(yīng),對(duì)我國(guó)持續(xù)城市化進(jìn)程中規(guī)范能源管理、節(jié)能減排、調(diào)整能源結(jié)構(gòu)、促進(jìn)區(qū)域平衡發(fā)展等方面具有重要意義。

        已有研究探討了世界各國(guó)城鎮(zhèn)化和能源消費(fèi)、碳排放之間的關(guān)系[2-5]。針對(duì)中國(guó)的研究中,F(xiàn)an等[6]、Zhang和Lin[7]用STIRPAT模型分別研究了全國(guó)層面上城鎮(zhèn)化對(duì)CO2排放的影響和東中西區(qū)域?qū)用娉擎?zhèn)化對(duì)能源消費(fèi)和碳排放的影響。Liu[8]通過(guò)誤差修正模型的因果檢驗(yàn)得出結(jié)論:僅僅存在城鎮(zhèn)化對(duì)總能源消費(fèi)的單項(xiàng)Granger因果關(guān)系。在這些研究中,作者大多采用各類(lèi)回歸模型、因果檢驗(yàn)?zāi)P蛠?lái)探討單個(gè)或多個(gè)國(guó)家、多個(gè)區(qū)域?qū)用嫔铣擎?zhèn)化與能源消費(fèi)的長(zhǎng)期方向性影響關(guān)系(雙向或單項(xiàng),正或負(fù))。與之不同,本研究試圖用Divisia分解法研究城鎮(zhèn)化進(jìn)程對(duì)我國(guó)四大區(qū)域生活能源消費(fèi)的貢獻(xiàn),分別從生活能源消費(fèi)總量和不同能源品種消費(fèi)角度開(kāi)展研究。

        1研究方法與數(shù)據(jù)

        1.1Divisia指數(shù)分解法

        采用絕對(duì)量形式的Divisia指數(shù)分解方法來(lái)研究城鎮(zhèn)化進(jìn)程對(duì)居民生活直接用能的影響。Et表示t年度居民生活用能總量,E1,t和E2,t分別表示t年度城鎮(zhèn)和農(nóng)村居民能源消費(fèi)總量,Nt表示t年度人口總量。s1,t和s2,t分別表示t年度城鎮(zhèn)和農(nóng)村人口占全國(guó)人口的比重,反映了城鎮(zhèn)化進(jìn)程;e1,t和e2,t分別表示t年度城鎮(zhèn)和農(nóng)村居民人均生活用能。

        樊靜麗等:中國(guó)城鎮(zhèn)化與區(qū)域居民生活直接用能研究

        中國(guó)人口·資源與環(huán)境2015年第1期

        Et=∑2i=1Ei,t=∑2i=1Nt·si,t·ei,t

        (1)

        Et·=

        ∑2i=1Nt··si,t·ei,t+

        ∑2i=1Nt·s·i,t·ei,t+

        ∑2i=1Nt·si,t·e·i,t

        =

        ∑2i=1Nt·Nt·si,t·ei,t·Nt+

        ∑2i=1Nt·s·i,tsi,t·ei,t·si,t+

        ∑2i=1Nt·si,t·e·i,tei,t·ei,t

        =∑2i=1Ei,t·Nt·Nt+

        ∑2i=1Ei,t·s·tsi,t+

        E1,t·e·1,te1,t+

        E2,t·e·2,te2,t

        (2)

        對(duì)式(2)求曲線(xiàn)積分,得到

        ∫ΓEt·=

        ∫?!?i=1Ei,t·Nt·Nt+

        ∫?!?i=1Ei,t·s·tsi,t+

        ∫ΓE1,t·e·1,te1,t+

        ∫ΓE2,t·e·2,te2,t

        (3)

        Γ為積分路徑,表示在時(shí)間區(qū)間(0,Γ)內(nèi)的曲線(xiàn)段。根據(jù)Hulten [9],在線(xiàn)性齊次條件下,式(3)的曲線(xiàn)積分與路徑無(wú)關(guān),于是有:

        ET-E0=

        ∫T0∑2i=1Ei,t·dlnNt

        人口增長(zhǎng)效應(yīng)ΔEpop+

        ∫T0∑2i=1Ei,t·dlnsi,t

        城鎮(zhèn)化效應(yīng)ΔEurb+

        ∫T0Ei,t·dlne1,t

        城鎮(zhèn)人均用能變化效應(yīng)ΔEmeurb+

        ∫T0Ei,t·dlne2,t

        農(nóng)村人均用能變化效應(yīng)ΔEmerur

        (4)

        式(4)是連續(xù)形式下的指數(shù)分解,由積分中值定理,在實(shí)際應(yīng)用中將其近似寫(xiě)成離散形式。可以采用Trnqvist[10]指數(shù)法或Sato [11]-Vartia[12]指數(shù)法近似。這里采用更精確的SatoVartia指數(shù)法。

        ΔE=ET-E0=ΔEpop+ΔEurb+ΔEeurb+ΔEerur+ΔErsd

        (5)

        其中,ΔErsd是余值部分,一般情況下接近于零,其余幾項(xiàng)分別為

        ΔEpop=∑2i=1[(Ei,T-Ei,0)/(lnEi,T-lnEi,0)]·(lnNT-lnN0)

        (6)

        ΔEurb=∑2i=1[(Ei,T-Ei,0)/(lnEi,T-lnEi,0)]·(lnsi,T-lnsi,0)

        (7)

        ΔEeurb=[(E1,T-E1,0)/(lnE1,T-lnE1,0)]·(lne1,T-lne1,0)

        (8)

        ΔEerur=[(E2,T-E2,0)/(lnE2,T-lnE2,0)]·(lne2,T-lne2,0)

        (9)

        1.2數(shù)據(jù)來(lái)源及預(yù)處理

        各省居民能源消費(fèi)數(shù)據(jù)來(lái)源于《中國(guó)能源統(tǒng)計(jì)年鑒》的地區(qū)能源平衡表[13-14],并按照全國(guó)實(shí)物量/標(biāo)準(zhǔn)量能源平衡表的折算比將地區(qū)平衡表中實(shí)物量轉(zhuǎn)換為標(biāo)準(zhǔn)量(電熱當(dāng)量法)。各類(lèi)能源中,煤炭指煤合計(jì)量和焦炭之和,油品指油品合計(jì),煤氣包括焦?fàn)t煤氣和其他煤氣,天然氣、熱力和電力與能源平衡表中的名稱(chēng)一致。各省城鄉(xiāng)人口和總?cè)丝跀?shù)據(jù)來(lái)源于《中國(guó)人口和就業(yè)統(tǒng)計(jì)年鑒2012》[15]。由于數(shù)據(jù)缺失,僅考察2000-2011年間的城鎮(zhèn)化與直接用能,其中四川省2000年城鄉(xiāng)人口數(shù)缺失,這里假設(shè)其比例與重慶一致。

        2居民生活直接用能的城鎮(zhèn)化分解

        我國(guó)幅員遼闊,人口眾多,面臨著區(qū)域發(fā)展不平衡的嚴(yán)峻挑戰(zhàn)。以四大區(qū)域劃分為例(見(jiàn)表1),2011年?yáng)|、中、西和東北區(qū)域的人均GDP分別為5.31,2.92,2.77和4.14萬(wàn)元/人,城鎮(zhèn)化水平分別為60.8%,45.5%,43.0%和58.7%。相應(yīng)地,城鎮(zhèn)化進(jìn)程對(duì)各區(qū)域生活直接用能的影響特點(diǎn)或?qū)⒉煌S捎诓糠质》莩擎?zhèn)和農(nóng)村人口數(shù)據(jù)缺失,地區(qū)分解中僅比較2000-2011年間城鎮(zhèn)化進(jìn)程對(duì)生活直接用能變化的影響效應(yīng)。如圖1所示,2011年各區(qū)域居民生活用能總量分別是2000年的2-2.7倍,增量水平和增量結(jié)構(gòu)也有所不同。

        表1全國(guó)四大區(qū)域劃分方式

        Tab.1Pattern of four regions division in China

        地區(qū)劃分

        Regions

        省份

        Provinces

        東部區(qū)域

        北京、天津、河北、上海、江蘇、浙江、福建、山東、廣東、海南

        中部區(qū)域

        山西、安徽、江西、河南、湖北、湖南

        東北區(qū)域

        遼寧、吉林、黑龍江

        西部區(qū)域

        內(nèi)蒙古、廣西、重慶、四川、貴州、云南、西藏、陜西、甘肅、青海、寧夏、新疆

        2.1各區(qū)域能源消費(fèi)總量的城鎮(zhèn)化分解

        與2000年相比,東、中、西部和東北區(qū)域居民2011年生活能源消費(fèi)增量分別大約為6 383,2 565,4 736和2 306萬(wàn)t標(biāo)準(zhǔn)煤,其中,城鎮(zhèn)化進(jìn)程對(duì)各區(qū)域生活直接用能的貢獻(xiàn)分別為4.2%,20.6%,4.1%,-0.01%(見(jiàn)圖2)。這里由于東北區(qū)域農(nóng)村人口增長(zhǎng)略高于城鎮(zhèn)人口,整體城鎮(zhèn)

        化率不但沒(méi)有提高,還略有降低,導(dǎo)致城鎮(zhèn)化效應(yīng)為負(fù)值,因此,本文暫不深入探討城鎮(zhèn)化進(jìn)程對(duì)東北區(qū)域居民生活

        圖1各區(qū)域2000-2011年能源消費(fèi)變化

        Fig.1Changes of residential energy consumption

        during 2000-2011 in China

        圖22000-2011年各區(qū)域能源消費(fèi)總量的城鎮(zhèn)化分解

        Fig.2Urbanization effects of residential energy

        consumption in China

        用能增加的貢獻(xiàn)。此外,人口增長(zhǎng)對(duì)東部區(qū)域居民生活用能貢獻(xiàn)最大,約為42.9%,反映了21世紀(jì)以來(lái)東部地區(qū)城

        鄉(xiāng)人口迅速增長(zhǎng)帶來(lái)的用能影響;對(duì)中、西部和東北部區(qū)

        域居民生活用能增量的貢獻(xiàn)率卻均不足4%。2000-2011年間城鄉(xiāng)人均生活用能增加對(duì)各區(qū)域生活直接用能增量的貢獻(xiàn)較大,相對(duì)而言,東部區(qū)域、西部區(qū)域和東北區(qū)域城鎮(zhèn)人均生活用能增量對(duì)區(qū)域居民用能增量的貢獻(xiàn)比農(nóng)村人均生活用能增量的貢獻(xiàn)更大,2000-2011年間貢獻(xiàn)程度基本上均在2 000萬(wàn)t標(biāo)準(zhǔn)煤以上;而中部區(qū)域農(nóng)村人均生活用能增量對(duì)居民用能增量的貢獻(xiàn)比城鎮(zhèn)人均生活用能的貢獻(xiàn)更大,亦接近2 000萬(wàn)t標(biāo)準(zhǔn)煤,在一定程度反映了中部區(qū)域農(nóng)村居民生活水平的廣泛提高。

        從絕對(duì)量來(lái)看,城鎮(zhèn)化率提高對(duì)中部區(qū)域居民生活能源消費(fèi)的貢獻(xiàn)最大,2000-2011年累計(jì)貢獻(xiàn)665萬(wàn)t標(biāo)準(zhǔn)煤,是東部區(qū)域和西部區(qū)域的2.5倍和3.4倍,反映中部區(qū)域人口結(jié)構(gòu)變化對(duì)直接用能的拉動(dòng)作用;從邊際量來(lái)看,城鎮(zhèn)化率每提高一個(gè)百分點(diǎn),由此引起的東、中、西部區(qū)域生活直接用能增量分別約為26.5,32.4和34.1萬(wàn)t標(biāo)準(zhǔn)煤,盡管差異不大,但東部區(qū)域的平均城鎮(zhèn)化效應(yīng)相對(duì)最小。

        2.2各區(qū)域居民生活各種能源消費(fèi)的城鎮(zhèn)化分解

        2.2.1城鎮(zhèn)化進(jìn)程對(duì)各區(qū)域居民生活煤炭消費(fèi)變化的貢獻(xiàn)

        與2000年相比,各區(qū)域2011年煤炭消費(fèi)變化不同,東部地區(qū)居民生活煤炭消費(fèi)減少近900萬(wàn)t標(biāo)煤,中部和東北區(qū)域降幅在6萬(wàn)t標(biāo)煤以?xún)?nèi),而西部區(qū)域居民的生活煤炭消費(fèi)量不降反升,增加了794萬(wàn)t標(biāo)準(zhǔn)煤(圖1),反映了該時(shí)期城鎮(zhèn)化率增幅較大(增加20.5個(gè)百分點(diǎn))。其中,城鎮(zhèn)化率提高對(duì)東、中、西部區(qū)域生活用煤變化的貢獻(xiàn)分別是-79.4,60.4和-36.9萬(wàn)t標(biāo)準(zhǔn)煤(見(jiàn)圖3),城鎮(zhèn)人口比重和農(nóng)村人口比重的此消彼長(zhǎng)共同作用使城鎮(zhèn)化率效應(yīng)相對(duì)其他效應(yīng)較小。此外,東部區(qū)域生活煤炭消費(fèi)量的減少主要由城鄉(xiāng)居民人均生活用煤量共同降低引起的;中部區(qū)域城鎮(zhèn)居民人均生活用煤量降低和農(nóng)村居民人均生活用煤量增加對(duì)該區(qū)域居民生活用煤量變化的貢獻(xiàn)相當(dāng),方向相反,但絕對(duì)量均較大;西部區(qū)域生活煤炭消費(fèi)量的增加主要由于城鎮(zhèn)和農(nóng)村居民人均生活用煤量共同增加引起,其中后者貢獻(xiàn)是前者的4.3倍(見(jiàn)圖3)。城鎮(zhèn)化率每提高一個(gè)百分點(diǎn),由此引起的東、中、西部區(qū)域居民生活用煤炭量的變化約為-7.8,2.9和-6.4萬(wàn)t標(biāo)準(zhǔn)煤。

        圖32000-2011年間各區(qū)域居民對(duì)煤炭消費(fèi)的

        城鎮(zhèn)化分解

        Fig.3Urbanization effects of regional residential coal

        consumption during 2000-2011 in China

        2.2.2城鎮(zhèn)化進(jìn)程對(duì)各區(qū)域居民生活油品消費(fèi)變化的貢獻(xiàn)

        與2000年相比,2011年各區(qū)域居民生活油品消費(fèi)有所增長(zhǎng),其中,東部區(qū)域增加最多(3 554萬(wàn)t標(biāo)準(zhǔn)煤),中、

        西部和東北區(qū)域增加778-881萬(wàn)t標(biāo)準(zhǔn)煤(圖1)。東、中、西部城鎮(zhèn)化率提高對(duì)該區(qū)域生活用油變化的貢獻(xiàn)率分別是4.5%,22.4%和4.8%;城鎮(zhèn)化率每提高一個(gè)百分點(diǎn),由此引起的東、中、西部生活用油增量分別約為15.8,8.5和7.4萬(wàn)t標(biāo)準(zhǔn)煤。此外,東部區(qū)域居民生活用油品增量由其他三項(xiàng)因素——人口增長(zhǎng)、城鎮(zhèn)居民人均生活用油增加和農(nóng)村居民人均生活用油增加——分別貢獻(xiàn)255%,44%和26%;城鎮(zhèn)居民和農(nóng)村居民人均生活用油增加對(duì)中部區(qū)域和西部區(qū)域居民生活用油增加貢獻(xiàn)較大,在31.2%-53%之間;這兩項(xiàng)因素對(duì)東北區(qū)域居民生活用油增量的貢獻(xiàn)率合計(jì)高達(dá)97.7%(見(jiàn)圖4)。

        圖42000-2011年間各區(qū)域居民對(duì)油品合計(jì)消費(fèi)的

        城鎮(zhèn)化分解

        Fig.4Urbanization effects of regional residential oil

        consumption during 2000-2011 in China

        2.2.3城鎮(zhèn)化進(jìn)程對(duì)各區(qū)域居民生活天然氣消費(fèi)變化的貢獻(xiàn)

        我國(guó)各區(qū)域天然氣消費(fèi)增長(zhǎng)迅速,2011年各區(qū)域?qū)μ烊粴庀M(fèi)是2000年的8-15倍,遠(yuǎn)高于其他能源消費(fèi)增長(zhǎng)速度(見(jiàn)圖1)。其中,東、中、西部區(qū)域分別增長(zhǎng)854,345和1 001萬(wàn)t標(biāo)準(zhǔn)煤,城鎮(zhèn)化率增加對(duì)三個(gè)區(qū)域生活天然氣消費(fèi)增量的貢獻(xiàn)分別是7.6%,26.3%和67%。各區(qū)域城鎮(zhèn)居民人均生活天然氣消費(fèi)量增加的貢獻(xiàn)占絕對(duì)主導(dǎo)地位,均在70%以上;人口增長(zhǎng)僅對(duì)東部區(qū)域天然氣增量貢獻(xiàn)較大(貢獻(xiàn)率15.7%);東北區(qū)域2000-2011年間天然氣增量?jī)H為55萬(wàn)t標(biāo)準(zhǔn)煤,其中,主要由城鎮(zhèn)居民人均生活用能變化驅(qū)動(dòng),貢獻(xiàn)率達(dá)93%以上。城鎮(zhèn)化率每增長(zhǎng)一個(gè)百分點(diǎn),由此引起的東、中、西部天然氣消費(fèi)增量分別約為6.4,4.4和11.7萬(wàn)t標(biāo)準(zhǔn)煤(見(jiàn)圖5)。

        2.2.4城鎮(zhèn)化進(jìn)程對(duì)各區(qū)域居民生活熱力消費(fèi)變化的貢獻(xiàn)

        我國(guó)各區(qū)域居民對(duì)熱力消費(fèi)增長(zhǎng)較快,2011年是2000年的3-7倍,東、中、西部地區(qū)分別增長(zhǎng)494,318,910萬(wàn)t標(biāo)準(zhǔn)煤(見(jiàn)圖1),城鎮(zhèn)化率增加分別貢獻(xiàn)17.1%,

        圖52000-2011年間各區(qū)域居民對(duì)天然氣消費(fèi)的

        城鎮(zhèn)化分解

        Fig.5Urbanization effects of regional residential

        natural gas consumption during 2000-2011 in China

        34%,7.3%。東部區(qū)域人口增長(zhǎng)效應(yīng)貢獻(xiàn)15.7%,其他區(qū)域貢獻(xiàn)在3%以?xún)?nèi)(見(jiàn)圖6);城鎮(zhèn)居民人均生活用熱力消費(fèi)增量對(duì)東北區(qū)域生活熱力消費(fèi)增量貢獻(xiàn)在各區(qū)域均較大,其中對(duì)西部和東北區(qū)域貢獻(xiàn)達(dá)92%以上。城鎮(zhèn)化率每增加1個(gè)百分點(diǎn),東、中、西部區(qū)域居民生活熱力消費(fèi)增量將分別增加8.3,5.3,11.5萬(wàn)t標(biāo)準(zhǔn)煤。

        圖62000-2011年間各區(qū)域居民對(duì)熱力消費(fèi)的

        城鎮(zhèn)化分解

        Fig.6Urbanization effects of regional residential heat

        consumption during 2000-2011 in China

        2.2.5城鎮(zhèn)化進(jìn)程對(duì)各區(qū)域居民生活電力消費(fèi)變化的貢獻(xiàn)

        2011年?yáng)|、中、西部區(qū)域居民生活電力消費(fèi)是2000年的3.3-4.7倍,高于生活用能總量的增長(zhǎng)幅度,分別增長(zhǎng)約2 412,1 142,1 183萬(wàn)t標(biāo)準(zhǔn)煤,東北區(qū)域居民生活用電量是2000年的2.3倍,增長(zhǎng)817萬(wàn)t標(biāo)準(zhǔn)煤(見(jiàn)圖1)。與居民油品消費(fèi)變化不同,城鎮(zhèn)化率提高對(duì)東部區(qū)域居民生活用電增量的貢獻(xiàn)非常小,不足3%,對(duì)中部和西部區(qū)域生活用電增量的貢獻(xiàn)率分別為15.1%和3.4%;城鎮(zhèn)化率每提高一個(gè)百分點(diǎn),由此引起的東、中、西部區(qū)域的生活用電量分別增加0.6,8.4和6.9萬(wàn)t標(biāo)準(zhǔn)煤。其他因素對(duì)各區(qū)域居民生活用電增量的影響程度與油品合計(jì)消費(fèi)增量的情形大致一致(見(jiàn)圖7)。

        圖72000-2011年間各區(qū)域居民對(duì)電力消費(fèi)的

        城鎮(zhèn)化分解

        Fig.7Urbanization effects of regional residential electricity

        consumption during 2000-2011 in China

        3主要結(jié)論與啟示

        根據(jù)以上結(jié)果分析與討論,就各區(qū)域城鎮(zhèn)化與居民生活直接用能變化之間關(guān)系得出以下幾條結(jié)論。

        (1)2000-2011年間,城鎮(zhèn)化進(jìn)程對(duì)東、中、西部和東北區(qū)域居民生活直接用能的貢獻(xiàn)分別為4.2%,20.6%,4.1%,-0.01%,體現(xiàn)了各區(qū)域不同的城鎮(zhèn)化效應(yīng)特征。此外,特別地,東部地區(qū)城鄉(xiāng)人口迅速增長(zhǎng)導(dǎo)致該區(qū)域居民生活用能變化的人口增長(zhǎng)效應(yīng)高達(dá)42.9%;中部區(qū)域農(nóng)村居民生活水平的廣泛提高使農(nóng)村人均生活用能對(duì)中部區(qū)域居民用能增量的貢獻(xiàn)達(dá)61.2%。

        (2)從絕對(duì)量來(lái)看,城鎮(zhèn)化率提高對(duì)中部區(qū)域居民生活能源消費(fèi)的貢獻(xiàn)最大,累計(jì)665萬(wàn)t標(biāo)準(zhǔn)煤,是東部和西部區(qū)域的2.5倍和3.4倍,反映了人口結(jié)構(gòu)的變動(dòng)對(duì)中部居民直接用能的明顯拉動(dòng)作用;從邊際量來(lái)看,城鎮(zhèn)化率每提高一個(gè)百分點(diǎn),對(duì)西部區(qū)域生活直接用能增量貢獻(xiàn)最大,為34萬(wàn)t標(biāo)煤,對(duì)東部區(qū)域增量貢獻(xiàn)最小,為26.5萬(wàn)t標(biāo)煤,地區(qū)間總體差異不大。

        (3)中部區(qū)域城鎮(zhèn)化進(jìn)程對(duì)該區(qū)域各類(lèi)生活能源消費(fèi)增量的貢獻(xiàn),在各區(qū)域中均最大。與其他區(qū)域不同,中部區(qū)域城鎮(zhèn)化進(jìn)程對(duì)煤炭消費(fèi)有增量貢獻(xiàn);東、中部區(qū)域城鎮(zhèn)化進(jìn)程對(duì)油品消費(fèi)增量的貢獻(xiàn)相近,是西部區(qū)域的3-4倍;東部區(qū)域城鎮(zhèn)化進(jìn)程對(duì)電力消費(fèi)增量的貢獻(xiàn)接近0;各區(qū)域城鎮(zhèn)化進(jìn)程對(duì)天然氣和熱力消費(fèi)增量的貢獻(xiàn)差別不大。

        (4)城鎮(zhèn)化率每增加一個(gè)百分點(diǎn),對(duì)各區(qū)域煤炭消費(fèi)變化的相對(duì)排序與絕對(duì)量貢獻(xiàn)類(lèi)似;對(duì)東部地區(qū)油品合計(jì)消費(fèi)增量貢獻(xiàn)最大,分別是中西部區(qū)域的1.9和2.3倍;對(duì)東部區(qū)域電力消費(fèi)增量貢獻(xiàn)遠(yuǎn)低于中西部區(qū)域;對(duì)天然氣和熱力消費(fèi)增量貢獻(xiàn)的情況類(lèi)似,均是西部區(qū)域最高,是東部和中部的1.4-2.6倍。

        致謝:本研究是在中國(guó)能源報(bào)告2010部分研究基礎(chǔ)上完成的,感謝廖華教授對(duì)部分研究?jī)?nèi)容的討論和建議,感謝杜云飛同學(xué)在數(shù)據(jù)收集方面提供的幫助,感謝北京理工大學(xué)能源與環(huán)境政策研究中心成員對(duì)研究的討論。

        (編輯:劉照勝)

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        Urbanization Effect on Regional Household Energy Consumption in China

        FAN JingLi1,2LIU Jian3ZHANG Xian4

        (1. Faculty of Resources & Safety Engineering, China University of Mining & Technology, Beijing(CUMTB),Beijing 100083,China;

        2.Centre for Energy Environment Policy Research, Beijing Institute of Technology, Beijing 100081, China;

        3. 61741 Troops, the Chinese Peoples Liberation Army, Beijing 100094,China;

        4. The Administrative Centre of Chinas Agenda 21, Beijing 100038, China)

        AbstractChina is experiencing acceleration of urbanization process that with an average annual growth of 1.4% since 1996. Meanwhile residential energy consumption in China is also in a rapid growth in this period. Moreover, given the fact of Chinas unbalanced regional development, the evolutions of urbanization and residential energy use, and the relationships between them in different regions may differ from each other. This paper then studies the individual evolutions of urban effects on direct use of residential energy in Chinese four regions during 1996-2011. By using Divisia index decomposition method, we decompose the changes of residential energy consumption in four regions into four driving factors, i.e. population growth effect, urbanization effect, effect of urban residential energy consumption per capita and effect of rural residential energy consumption. Impacts of urbanization rate increase on residential energy consumption in eastern, western, and central regions are focused, of which absolute and marginal contributions on total energy consumption and each type of energy consumption are analyzed. The results show that: (1) urbanization rate increase contributes to residential energy consumption in eastern, central, western, northeastern regions by 4.2%, 20.6%, 4.1%, and -0.01% respectively. (2) Contribution from urbanization rate increases to residential energy consumption exists little difference among regions, of which that to eastern region is the least. (3) Unlike other regions, urbanization effect in central region on its coal consumption is positive; urbanization increases in eastern and central regions contribute to their oil consumption by 3-4 times of that in western region; urbanization effect in eastern region on its electricity consumption is close to zero. (4) Every one percentage rise in urbanization rate in eastern region contributes to its residential oil consumption by 1.9 and 2.3 times of that in central and western regions respectively, and the situations to natural gas consumption and heat consumption are similar, both with highest contribution in western region. The conclusions provide some implications for regional energy management and energy conservation and emission reduction.

        Key wordsurbanization; residential energy consumption; divisia decomposition

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        [11]Sato K. The Ideal Logchange Index Number[J]. Review of Economics and Statistics, 1976, 58 (2):223-228.

        [12]Vartia Y O. Ideal Logchange Index Numbers[J]. Scandinavian Journal of Statistics Theory and Applications,1976, 3 (3):121-126.

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        [15]國(guó)家統(tǒng)計(jì)局人口與就業(yè)統(tǒng)計(jì)司. 中國(guó)人口與就業(yè)統(tǒng)計(jì)年鑒2012[M].北京:中國(guó)統(tǒng)計(jì)出版社,2013.[Department of Population and Employment Statistics, National Bureau of Statistics of China. China Population and Employment Statistics Yearbook 2012[M]. Beijing: China Statistics Press,2013.]

        Urbanization Effect on Regional Household Energy Consumption in China

        FAN JingLi1,2LIU Jian3ZHANG Xian4

        (1. Faculty of Resources & Safety Engineering, China University of Mining & Technology, Beijing(CUMTB),Beijing 100083,China;

        2.Centre for Energy Environment Policy Research, Beijing Institute of Technology, Beijing 100081, China;

        3. 61741 Troops, the Chinese Peoples Liberation Army, Beijing 100094,China;

        4. The Administrative Centre of Chinas Agenda 21, Beijing 100038, China)

        AbstractChina is experiencing acceleration of urbanization process that with an average annual growth of 1.4% since 1996. Meanwhile residential energy consumption in China is also in a rapid growth in this period. Moreover, given the fact of Chinas unbalanced regional development, the evolutions of urbanization and residential energy use, and the relationships between them in different regions may differ from each other. This paper then studies the individual evolutions of urban effects on direct use of residential energy in Chinese four regions during 1996-2011. By using Divisia index decomposition method, we decompose the changes of residential energy consumption in four regions into four driving factors, i.e. population growth effect, urbanization effect, effect of urban residential energy consumption per capita and effect of rural residential energy consumption. Impacts of urbanization rate increase on residential energy consumption in eastern, western, and central regions are focused, of which absolute and marginal contributions on total energy consumption and each type of energy consumption are analyzed. The results show that: (1) urbanization rate increase contributes to residential energy consumption in eastern, central, western, northeastern regions by 4.2%, 20.6%, 4.1%, and -0.01% respectively. (2) Contribution from urbanization rate increases to residential energy consumption exists little difference among regions, of which that to eastern region is the least. (3) Unlike other regions, urbanization effect in central region on its coal consumption is positive; urbanization increases in eastern and central regions contribute to their oil consumption by 3-4 times of that in western region; urbanization effect in eastern region on its electricity consumption is close to zero. (4) Every one percentage rise in urbanization rate in eastern region contributes to its residential oil consumption by 1.9 and 2.3 times of that in central and western regions respectively, and the situations to natural gas consumption and heat consumption are similar, both with highest contribution in western region. The conclusions provide some implications for regional energy management and energy conservation and emission reduction.

        Key wordsurbanization; residential energy consumption; divisia decomposition

        [9]Hulten C R. Divisia Index Numbers[J]. Econometrica, 1973, 41 (6):1017-25.

        [10]Trnqvist L. The Bank of Finlands Consumption Price Index[J]. Bank of Finland Monthly Bulletin, 1936, 10:1-8.

        [11]Sato K. The Ideal Logchange Index Number[J]. Review of Economics and Statistics, 1976, 58 (2):223-228.

        [12]Vartia Y O. Ideal Logchange Index Numbers[J]. Scandinavian Journal of Statistics Theory and Applications,1976, 3 (3):121-126.

        [13]國(guó)家統(tǒng)計(jì)局.中國(guó)能源統(tǒng)計(jì)年鑒(2008)[M].北京:中國(guó)統(tǒng)計(jì)出版社,2009.[ National Bureau of Statistics. China Energy Statistical Yearbook (2008)[M]. Beijing: China Statistics Press, 2009.]

        [14]國(guó)家統(tǒng)計(jì)局. 中國(guó)能源統(tǒng)計(jì)年鑒(2011)[M].北京:中國(guó)統(tǒng)計(jì)出版社,2012.[ National Bureau of Statistics. China Energy Statistical Yearbook (2011)[M]. Beijing: China Statistics Press, 2012.]

        [15]國(guó)家統(tǒng)計(jì)局人口與就業(yè)統(tǒng)計(jì)司. 中國(guó)人口與就業(yè)統(tǒng)計(jì)年鑒2012[M].北京:中國(guó)統(tǒng)計(jì)出版社,2013.[Department of Population and Employment Statistics, National Bureau of Statistics of China. China Population and Employment Statistics Yearbook 2012[M]. Beijing: China Statistics Press,2013.]

        Urbanization Effect on Regional Household Energy Consumption in China

        FAN JingLi1,2LIU Jian3ZHANG Xian4

        (1. Faculty of Resources & Safety Engineering, China University of Mining & Technology, Beijing(CUMTB),Beijing 100083,China;

        2.Centre for Energy Environment Policy Research, Beijing Institute of Technology, Beijing 100081, China;

        3. 61741 Troops, the Chinese Peoples Liberation Army, Beijing 100094,China;

        4. The Administrative Centre of Chinas Agenda 21, Beijing 100038, China)

        AbstractChina is experiencing acceleration of urbanization process that with an average annual growth of 1.4% since 1996. Meanwhile residential energy consumption in China is also in a rapid growth in this period. Moreover, given the fact of Chinas unbalanced regional development, the evolutions of urbanization and residential energy use, and the relationships between them in different regions may differ from each other. This paper then studies the individual evolutions of urban effects on direct use of residential energy in Chinese four regions during 1996-2011. By using Divisia index decomposition method, we decompose the changes of residential energy consumption in four regions into four driving factors, i.e. population growth effect, urbanization effect, effect of urban residential energy consumption per capita and effect of rural residential energy consumption. Impacts of urbanization rate increase on residential energy consumption in eastern, western, and central regions are focused, of which absolute and marginal contributions on total energy consumption and each type of energy consumption are analyzed. The results show that: (1) urbanization rate increase contributes to residential energy consumption in eastern, central, western, northeastern regions by 4.2%, 20.6%, 4.1%, and -0.01% respectively. (2) Contribution from urbanization rate increases to residential energy consumption exists little difference among regions, of which that to eastern region is the least. (3) Unlike other regions, urbanization effect in central region on its coal consumption is positive; urbanization increases in eastern and central regions contribute to their oil consumption by 3-4 times of that in western region; urbanization effect in eastern region on its electricity consumption is close to zero. (4) Every one percentage rise in urbanization rate in eastern region contributes to its residential oil consumption by 1.9 and 2.3 times of that in central and western regions respectively, and the situations to natural gas consumption and heat consumption are similar, both with highest contribution in western region. The conclusions provide some implications for regional energy management and energy conservation and emission reduction.

        Key wordsurbanization; residential energy consumption; divisia decomposition

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