| 浑善达克沙区近期气候变化的研究 |
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| 引用本文： | 孙安健,刘德松.浑善达克沙区近期气候变化的研究[J].南京气象学院学报,1992,15(3):414-421. |
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| 作者姓名： | 孙安健 刘德松 |
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| 作者单位： | 国家气象局
(孙安健)，国家气象局(刘德松) |
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| 摘 要： |
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| 关 键 词： | 气候变化 人类 活动 沙漠化 |
RESEARCH OF THE RECENT CLIMATIC CHANGES IN THE HUNSHANDAKE SAND REGION OF CHINA |
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| Sun Anjian,Liu Desong State Meteorological Administration.RESEARCH OF THE RECENT CLIMATIC CHANGES IN THE HUNSHANDAKE SAND REGION OF CHINA[J].Journal of Nanjing Institute of Meteorology,1992,15(3):414-421. |
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| Authors: | Sun Anjian Liu Desong State Meteorological Administration |
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| Institution: | Sun Anjian;Liu Desong State Meteorological Administration |
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| Abstract: | The Hunshandake sand region is an area very sensitive to the climaticchanges related to human activities. The tendency of climatic variations revealed in thisstudy exhibits that the cold/warm and dry/wet periods occurred alternatively during the1960s, warm and humid periods in the 1970s, and warm and arid periods during the1980s. There exists a significant periodical oscillation in the meteorological factors relat-ed to desertification, with its duration varying from 2-4 to 6-8 years. A statisticalmodel is established for various factors including aridity, and annual rainfall amount.The climatic tendency in the sand region predicted for 1990 and 1991 in terms of Cheby-shev polynomials,ie,warm,humid 1990 and warm,arid 1991,is consistent with what ac-tually happened. |
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| Keywords: | climatic evolution human activity desert |
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