| 中国黑戈壁地区气候变化特征 |
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| 引用本文： | 咸迪,郑新江,李雪,李永华.中国黑戈壁地区气候变化特征[J].气象与环境学报,2014,30(2):81-87. |
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| 作者姓名： | 咸迪 郑新江 李雪 李永华 |
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| 作者单位： | 1.国家卫星气象中心，北京 100081；2.中国林业科学研究院，北京 100091 |
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| 基金项目： | 资助项目：中国林业科学研究院重大项目“中国黑戈壁区生态本底调查”（CAFYBB2011002）资助. |
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| 摘 要： | 利用1959-2011年黑戈壁地区12个气象站的年平均气温、年降水量、年平均地面风速、年大风日数和年沙尘暴日数，采用气候趋势法分析了黑戈壁地区气候变化基本特征，并与荒漠化地区气候变化数据相比较。结果表明：黑戈壁地区年平均气温增温速率为0.34 ℃/10 a，高于0.25 ℃/10 a的荒漠化地区；年降水量增长率为1.33 mm/10 a，略小于荒漠化地区1.66 mm/10 a的年降水量增长率；年地面风速减小率为-0.10 m·s-1/10 a，不如荒漠化地区-0.14 m·s-1/10 a的值；年大风日数减少率为-1.83d/10a，远不如荒漠化地区-3.44 d/10 a的值；年沙尘暴日数减少率为-1.83 d/10 a，比荒漠化地区-1.77 d/10 a的减少率略明显。Mann-Kendall方法检验表明，除年降水量外，其他气候因子只有一个突变点。不同气候因子的空间分布是不同的。
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| 关 键 词： | 荒漠化地区 气候趋势法 突变 |
Climatic change characteristics over Black Gobi desert region of China |
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| XIAN Di,ZHENG Xin-jiang,LI Xue,LI Yong-hua.Climatic change characteristics over Black Gobi desert region of China[J].Journal of Meteorology and Environment,2014,30(2):81-87. |
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| Authors: | XIAN Di ZHENG Xin-jiang LI Xue LI Yong-hua |
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| Institution: | 1. National Satellite Meteorological Center, Beijing 100081, China; 2. Chinese Academy of Forestry, Beijing 100091, China |
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| Abstract: | Based on the annual average temperature ,precipitation, average wind speed, the number of gale days and dust storm days from 1959 to 2011 at 12 meteorological stations of the Black Gobi desert region, the climatic change characteristics were analyzed by a climatic trend method and it was compared with that in the desertification region. The results indicate that the annual mean temperature increases and its rates are 0. 34 ℃ and 0. 25℃ per decade in the Black Gobi desert and desertification regions, so is the annual precipitation and its rates are 1.33 mm and 1.66 mm per decade respectively. The annual mean surface wind speed decreases in the Black Gobi desert re- gion with 0. 10 m·s-1 per decade and in the desertification region with 0. 14 m·s -1 per decade,so is the number of gale days in Black Gobi desert region with 1.83 days per decade and in the desertification region with 3.44 days per decade. The number of dust storm days decreases in Black Gobi desert region with 1.83 days per decade and in the desertitication region with 1.77 days per decade, respectively. There is only one abrupt change point for most climatic factors except annual precipitation according to a Mann-Kendall test method. The spatial distributions of various climatic factors are different. |
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| Keywords: | Desertification region Climate trend method Abrupt change |
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