| DRY-WET EVOLUTION IN GUANGDONG PROVINCE DURING LAST 500 YEARS |
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| 作者姓名： | XUE Ji-bin ZHONG Wei ZHEN Zhi-guo LIU Wei |
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| 作者单位： | School of Geography Science，South China Normal University，Guangzhou 510631，P. R. China |
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| 基金项目： | Under the auspices of the Natural Science Foundation of Guang dong Province(No.031522),the Fok Ying Tung Ed-ucation Foundation(No.91021) |
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| 摘 要： | 1 INTRODUCTIONThe global warming change has already become one ofthe focuses that many scientists pay attention to, and theprecipitation change of China is also one part of thequestionsunder the whole world changes today. Accord-ing to the actual material analysis, the climate in Chinahad a warm-dry tendency in a wide spread range duringthe past one hundred years (ZHAO, 1993), and it couldnot draw a verdict as for future tendency at present. Fol-lowing the thought of Prof. HUANG Bing…
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| 关 键 词： | 广东 气候变化 湿度 干燥 |
| 文章编号： | 1002-0063（2006）01-0063-07 |
| 收稿时间： | 2005-12-01 |
Dry-wet evolution in Guangdong province during last 500 years |
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| XUE Ji-bin,ZHONG Wei,ZHEN Zhi-guo,LIU Wei.DRY-WET EVOLUTION IN GUANGDONG PROVINCE DURING LAST 500 YEARS[J].Chinese Geographical Science,2006,16(1):63-69. |
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| Authors: | Ji-bin Xue Wei Zhong Zhi-guo Zhen Wei Liu |
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| Institution: | (1) School of Geography Science, South China Normal University, 510631 Guangzhou, P. R. China |
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| Abstract: | Based on the historical records in Guangdong Province during the last 500a, the moist index sequence was reconstructed and analyzed by the correlation analysis, wavelet analysis and the power spectrum analysis. The results indicate that: 1) The El Niño events have evident correlations with the droughts happened in the west and north of Guangdong Province, which intensified the dryness and wetness distribution patterns in these areas in a certain degree. 2) Good correspondence relations exist among the moist index sequence, Greenland ice core oxygen isotope record and the winter-half-year temperature sequence in the eastern China, which showed an apparent monsoonal disposal pattern of moisture and temperature. 3) By applying the wavelet analysis to deal with the data, several apparent periodicities are revealed, among which some can be attributed to the solar activities. At the same time, the ENSO event, monsoon (especially the East Asian monsoon) activity and the human activity may also have some influences on the periodicities of the climatic changes in Guangdong Province. 4) Guangdong will persist in dry period before 2040 (±5 years) though some little waterlogged period will also exist in this interval, and after that great floods maybe take place in Guangdong. We think that the variety range of the dryness and wetness has increasing tendency in Guangdong Province in future several even hundred years. |
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| Keywords: | dry-wet evolution El Ni o monsoon solar activity Guangdong Province |
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