降水变化对中国南方强酸雨分布的影响

• Published in: 地理学报（英文版） Vol. 19; no. 4; pp. 489 - 501
• Main Authors: 谢志清, 杜银, 曾燕, 李亚春, 严明良, 焦圣明
• Format: Journal Article
• Language: Chinese
• Published: 2009
• Subjects: Mann-Kendall trend test; acid ruin; spatial and temporal variations in seasonal precipitation; climate change rate
• ISSN: 1009-637X
• DOI: 10.1007/s11442-009-0489-y

P4; Acid rain has been recognized as a serious environmental problem in China since the 1980s, but little is known about the effects of the climatic change in regional precipitation on the temporal and spatial variability of severe acid rain. We present the effects of the re-gional precipitation trend change on the area and intensity of severe acid rain in southern China, and the spatio-temporal distribution characteristics of SO2 and NO2 concentrations are analyzed on the basis of SO2 and NO2 column concentration data. The results are as follows. (1) The emission levels of SO2 and NO2 have reached or passed the precipitation scavenging capacity in parts of southern China owing to the emission totals of SO2 and NO2 increasing from 1993 to 2004. (2) Notable changes in the proportion of cities subject to severe acid rain occurred mainly in the south of the middle-lower reaches of the Yangtze River during 1993-2004. With an abrupt change in 1999, the severe acid rain regions were mainly located in central and we