本文關(guān)鍵詞：近10年中國(guó)空氣質(zhì)量時(shí)空分布特征　出處：《生態(tài)環(huán)境學(xué)報(bào)》2017年02期 　論文類型：期刊論文

  更多相關(guān)文章： 空氣質(zhì)量 時(shí)空變化 重心模型 空間自相關(guān) 空間插值 中國(guó)

【摘要】：空氣污染是建設(shè)健康中國(guó)過程中亟待解決的難題。利用2005—2015年全國(guó)86個(gè)重點(diǎn)城市空氣質(zhì)量日?qǐng)?bào)數(shù)據(jù),綜合運(yùn)用全局自相關(guān)法、層次聚類法、空間插值法以及重心遷移模型,從年度、季節(jié)和月份3個(gè)時(shí)間尺度上探討了近10年來中國(guó)空氣質(zhì)量的時(shí)空分布特征。結(jié)果表明,(1)全國(guó)空氣質(zhì)量表現(xiàn)出顯著的時(shí)間變化規(guī)律。從年際變化上看,空氣質(zhì)量逐年好轉(zhuǎn)趨勢(shì)明顯;從季節(jié)變化上看,夏季空氣質(zhì)量最好,春秋次之,冬季最差;從月份變化上看,空氣質(zhì)量呈現(xiàn)出顯著的先降后升的"U"型變化規(guī)律。(2)全國(guó)空氣質(zhì)量呈現(xiàn)出顯著的空間集聚和分異規(guī)律,表現(xiàn)為"北重南輕、東重西輕"的空間格局。其中,京津冀地區(qū)、西北地區(qū)以及山東、河南屬于長(zhǎng)期高污染區(qū);以珠三角為核心的南部沿海地區(qū)、云貴高原和青藏高原地區(qū)屬于常年優(yōu)良區(qū)。近10年全國(guó)空氣質(zhì)量整體雖得到有效改善,但部分地區(qū)(河北、山東、河南和江蘇)污染仍在加重,期間污染范圍從整個(gè)華北地區(qū)、中部地區(qū)和西北地區(qū)向京津冀地區(qū)集中,空氣污染分布模式從集中連片分布變成零星分布。(3)近10年全國(guó)空氣質(zhì)量重心以向東北方向移動(dòng)為主,表明東部和北部地區(qū)部分省份的空氣污染程度較全國(guó)其他省份嚴(yán)重。(4)研究結(jié)果揭示了近10年中國(guó)空氣質(zhì)量的時(shí)空分異規(guī)律,可為尋求污染治理辦法提供理論參考。
[Abstract]:Air pollution is an urgent problem in the construction of health Chinese process. From 2005 to 2015 86 national key city daily air quality data, using the global autocorrelation method, hierarchical clustering method, spatial interpolation method and the barycenter model, from the 3 year, season and month time scale on the temporal and spatial distribution of air quality China in recent 10 years. The results showed that (1) the national air quality showed a significant time variation. From the annual variation, the air quality has been improved obviously; from the seasonal changes of air quality, the best in summer, spring, winter is the worst; from the month change, air quality show a significant rise after the first drop the "U" type changes. (2) the air quality showed a significant spatial agglomeration and distribution, performance for the "North South light, the spatial pattern of East West light weight". Among them, the Beijing Tianjin Hebei Area, northwest area and Shandong, Henan belongs to the long-term high pollution in the Pearl River Delta region; as the core of the southern coastal area, Yunnan Guizhou Plateau and Qinghai Tibet plateau area belongs to the perennial good area. Nearly 10 years the overall air quality has been effectively improved, but in some areas (Hebei, Shandong, Henan and Jiangsu) there was an increase in pollution during the period, pollution range from the entire north central region and northwest to the Beijing Tianjin Hebei region, air pollution from the distribution pattern of concentrated distribution become scattered. (3) the past 10 years the national air quality center to move to the east north direction, showed that air pollution in some provinces in eastern and northern regions than other provinces the country is serious. (4) the study revealed nearly 10 years of air quality China space-time distribution, can provide a theoretical reference for the pollution control measures for.

【作者單位】： 西南大學(xué)地理科學(xué)學(xué)院;重慶稻田科技有限公司;
【基金】：國(guó)家科技支撐計(jì)劃課題(2014BAC16B06)
【分類號(hào)】：X51
【正文快照】： 引用格式:肖悅,田永中,許文軒,吳晶晶,田林,劉瑾.2017.近10年中國(guó)空氣質(zhì)量時(shí)空分布特征[J].生態(tài)環(huán)境學(xué)報(bào),26(2):243-252.XIAO Yue,TIAN Yongzhong,XU Wenxuan,WU Jingjing,TIAN Lin,LIU Jin.2017.Spatiotemporal pattern changes of air qualityin China from 2005 to 2015[J]

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