1991—2013年西北地区省会城市PM10浓度变化特征

doi:10.11755/j.issn.1006-7639(2016)-04-0656

干旱气象

1991—2013年西北地区省会城市PM10浓度变化特征

祁栋林1,2，李晓东1,2，胡爱军1,2，肖宏斌1,2，魏鸿业1,2，苏文将1,2

1.青海省气象科学研究所，青海西宁810001；2.青海省防灾减灾重点实验室，青海西宁810001

出版日期:2016-08-31 发布日期:2016-08-31
作者简介:祁栋林（1967- ），男，高级工程师，主要从事大气成分观测和天气气候研究. E-mail:qidl007@163.com
基金资助:
国家自然科学基金地区科学基金项目（41161009）和公益性行业（气象）科研专项(GYHY201306054、GYHY201506001)共同资助

Variation Characteristics of PM10 Concentration in Provincial Capitals
of Northwest China During 1991-2013

QI Donglin1,2，LI Xiaodong1,2，HU Aijun1,2，
XIAO Hongbin1,2，WEI Hongye1,2，SU Wenjiang1,2

1. Institute of Qinghai Meteorological Science Research, Xining 810001, China；
2. Qinghai Key Laboratory of Disaster Preventing and Reducing, Xining 810001, China

Online:2016-08-31 Published:2016-08-31

摘要/Abstract

摘要：

基于我国西北各省会城市1991—2001年平均TSP资料和2002—2013年平均PM10资料，对PM10浓度年变化趋势、突变特征和未来趋势进行分析。结果表明：（1）近23 a我国西北各省会城市PM10浓度整体呈显著下降趋势，下降速率为-0.12～-0.04 mg·m-3·(10 a)-1，兰州最大，西安最小，且具有明显不尽相同的阶段性特征。PM10污染负荷系数整体也呈下降趋势；（2）2001年乌鲁木齐、西安和银川PM10浓度发生突变，兰州和西宁突变分别发生在2003年和2004年；（3）西北各省会城市PM10浓度变化存在着持续性，未来下降趋势仍将持续，但持续性强度不尽相同。

关键词: PM10, Spearman秩相关系数, Hurst指数

Abstract:

Based on the annual mean total suspended particulate (TSP) data during 1991-2001 and PM10 data during 2002-2013 in provincial capitals of Northwest China, the annual variation characteristics of PM10 concentration and their mutation test and future trends were analyzed by using the Diniel analysis, Mann-Kendall test and R/S analysis. The results are as follows:(1)The PM10 concentration decreased significantly as a whole in provincial capitals of Northwest China in nearly 23 years, with the rate of -0.12--0.04 mg·m-3 every 10 years, the maximum and minimum decreasing rate respectively occurred in Lanzhou and Xi’an. And the changes in phase of PM10 concentration were obviously different in provincial capitals of Northwest China during 1991-2013, but the decreasing rates were fastest from 2000 to 2005. The pollution load coefficient of PM10 in provincial capitals of Northwest China during 1991-2013 showed a downward trend. (2)The mutation of PM10 concentration in Urumqi, Xi’an and Yinchuan occurred in 2001, and they decreased significantly after 2004, while in Lanzhou and Xining it occurred in 2003 and 2004, respectively, and the PM10 concentration for the former decreased significantly after 2004, for the latter it decreased significantly after 2007. (3)The variations of PM10 concentration were sustainable in provincial capitals of Northwest China, and the decreasing trend will be continuing in the years ahead, but the persistent strength will be different.

Key words: PM10, Spearman rank correlation coefficient, Hurst index

中图分类号:

P404

祁栋林1,2，李晓东1,2，胡爱军1,2，肖宏斌1,2，魏鸿业1,2，苏文将1,2. 1991—2013年西北地区省会城市PM10浓度变化特征[J]. 干旱气象, DOI: 10.11755/j.issn.1006-7639(2016)-04-0656.

QI Donglin1,2，LI Xiaodong1,2，HU Aijun1,2，. Variation Characteristics of PM10 Concentration in Provincial Capitals
of Northwest China During 1991-2013[J]. Journal of Arid Meteorology, DOI: 10.11755/j.issn.1006-7639(2016)-04-0656.

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1991—2013年西北地区省会城市PM10浓度变化特征

Variation Characteristics of PM10 Concentration in Provincial Capitals
of Northwest China During 1991-2013

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1991—2013年西北地区省会城市PM10浓度变化特征

Variation Characteristics of PM10 Concentration in Provincial Capitals of Northwest China During 1991-2013

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Variation Characteristics of PM10 Concentration in Provincial Capitals
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