【摘要】：近年來,"霧霾天"在我國很多地區(qū)頻繁出現(xiàn),引起了全社會的廣泛關(guān)注。我們懷疑城市空間結(jié)構(gòu)會對霧霾污染產(chǎn)生影響。本文綜合利用PM2.5地表濃度數(shù)據(jù)、全球夜間燈光數(shù)據(jù)、LandScan人口分布數(shù)據(jù)以及經(jīng)濟統(tǒng)計資料,計算了我國各城市的蔓延指數(shù),并實證分析了城市蔓延和城市規(guī)模對地級市霧霾污染的影響。研究結(jié)果表明:城市蔓延會提高當(dāng)?shù)豍M2.5濃度,人口規(guī)模的提高也會有類似的效應(yīng),而且,城市蔓延與霧霾濃度的同方向關(guān)聯(lián)會因城市規(guī)模的增加而減弱,小城市的空間蔓延會導(dǎo)致更為嚴重的空氣污染。此外,工業(yè)城市經(jīng)常有更高的霧霾濃度。本文結(jié)論具有如下現(xiàn)實意義:在城市內(nèi)部空間規(guī)劃方面,應(yīng)該控制各城市尤其是小城市的無序蔓延,堅持緊湊式空間結(jié)構(gòu);在城市體系優(yōu)化方面,應(yīng)穩(wěn)步發(fā)展中小城市,并適當(dāng)控制大城市規(guī)模,促進大中小城市的協(xié)調(diào)發(fā)展。
[Abstract]:In recent years, haze days appear frequently in many areas of our country, which has aroused wide attention of the whole society. We suspect that the urban spatial structure will have an impact on haze pollution. Based on PM2.5 land surface concentration data, global night light data and LandScan population distribution data as well as economic statistics, the spread index of cities in China is calculated in this paper. The effects of urban sprawl and urban scale on haze pollution in prefectural cities are analyzed empirically. The results show that urban sprawl will increase the local PM2.5 concentration and the population scale will have a similar effect. Moreover, the codirectional correlation between urban sprawl and haze concentration will be weakened by the increase of city size. The spread of space in small cities can lead to more serious air pollution. In addition, industrial cities often have higher haze concentrations. The conclusion of this paper is of the following practical significance: in the aspect of urban interior spatial planning, we should control the disorderly spread of cities, especially small cities, adhere to the compact spatial structure, and steadily develop small and medium-sized cities in the aspect of urban system optimization. And properly control the size of large cities to promote the coordinated development of large and medium-sized cities.
【作者單位】： 東南大學(xué)經(jīng)濟管理學(xué)院;
【基金】：國家社科基金一般項目“轉(zhuǎn)型背景下我國城市蔓延的形成機理與經(jīng)濟效率影響研究”(15BJL107) 江蘇省社科研究基地項目“江蘇新型城鎮(zhèn)化的難點、制約因素與對策研究”(13JDB024) 江蘇省普通高校研究生科研創(chuàng)新計劃項目“新型城鎮(zhèn)化背景下我國城市蔓延成因研究”(KYLX15_0224)
【分類號】：X513

【相似文獻】

相關(guān)期刊論文 前1條

1 王家庭;趙麗;馮樹;趙運杰;;城市蔓延的表現(xiàn)及其對生態(tài)環(huán)境的影響[J];城市問題;2014年05期

相關(guān)碩士學(xué)位論文 前2條

1 錢越;中國城市蔓延的環(huán)境影響與對策[D];大連理工大學(xué);2009年

2 李藝;城市蔓延過程中景觀變化與水環(huán)境的閾值關(guān)系研究[D];南京大學(xué);2012年

，

本文編號：2168421