腾格里沙漠周边地区45年气候变化分析 |
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引用本文: | 张宏建,张宏伟,徐晓凤,董美琴.腾格里沙漠周边地区45年气候变化分析[J].内蒙古气象,2009(2):15-16. |
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作者姓名: | 张宏建 张宏伟 徐晓凤 董美琴 |
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作者单位: | 阿拉善盟孪井滩牧业气象试验站,内蒙古,阿拉善,750318 |
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摘 要: | 利用腾格里沙漠腹地头道湖气象站1962-2006年的气候资料,腾格里沙漠腹地45年气候的变化异常,平均气温升温达到1.3℃、5cm平均地温升温达到3.3℃;近10年平均蒸发量较20年前增加了284mm;冻土年极值最大变幅为63cm;天然草场0-50cm土壤出现严重干旱,致使牧草退化十分迅速,这一现象已经引起有关部门高度重视,许多地方近年来采取了退牧还草、禁牧等一系列恢复措施。
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关 键 词: | 腾格里沙漠 气候变化 分析 |
Analysis on Climate Variability of Tenggeli Desert Surrounding Area in Recent 45 Years |
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Authors: | Zhang Hongjian Zhang Hongwei Xu Xiaofeng Dong Meiqin |
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Institution: | Alashan Meteorological Bureau;Alashan 750318 |
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Abstract: | This article analyzed the climatic data of Toudaohu weather station which is in Tenggeli desert hinterland from 1962 to 2006, the conclusions are as follows: climate change of Tenggeli desert hinterland is abnormal in recent 45 years, mean temperature was rising 1.3℃, mean ground temperature of 5cm was rising 3.3℃, mean evaporation in recent ten years increased 284mm comparing with twenty years ago, the annual extreme biggest changeable range of frozen soil depth is 63cm, the soil of 0-50cm in natural pasture is serious drought. Therefore, grassland degradation got rapid, the phenomenon have caught relevant department's high attention, a series of recovery measures of returning cropping land to forage land and banning grazing were adopted in recent years in many places. |
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Keywords: | Tenggeli desert Climate variability Analysis |
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