Modern dust storms in China: an overview

Modern dust storms in China: an overview
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DOI:
10.1016/j.jaridenv.2003.11.009
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发表时间:
2004-09-01
影响因子:
2.7
通讯作者:
Liu, LC
Liu, LC
中科院分区:
环境科学与生态学3区
文献类型:
--
作者:
Wang, XM;Dong, ZB;Liu, LC

文献摘要

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本文讨论了中国沙尘暴的来源、空间分布、频率和趋势。中国大多数沙尘暴起源于三个地理区域之一:河西走廊和内蒙古高原西部、塔克拉玛干沙漠和内蒙古高原中部。沙尘最有可能来自退化的草原、戈壁、冲积物、湖泊沉积物和沙漠外缘的河堤。但沙漠本身对沙尘暴的直接影响很小。沙尘暴频繁发生的地理区域有两个:一个是塔里木盆地西部的退化土地和洼地地面,但只影响其周边地区;另一个是内蒙古高原西部的戈壁、冲积和湖泊沉积物地面,但它造成了中国北方的大部分沙尘暴。总的来说,1950 - 2000年,中国大部分地区的沙尘暴减少了。沙尘暴与人类活动和气候变化密切相关。(C) 2004 Elsevier Ltd.版权所有。
This paper discusses the sources, spatial distribution, frequency and trend of dust storms in China. Most dust storms in China originate from one of three geographic areas: the Hexi (River West) Corridor and western Inner Mongolia Plateau, the Taklimakan Desert, and the central Inner Mongolia Plateau. Dust is most likely from deteriorated grasslands, Gobi, alluvial, lacustrine sediments and wadis at the outer edge of deserts. But deserts themselves contribute only slightly to the dust storm directly. Two geographic areas frequently have dust storms: one is in the western Tarim Basin, a ground surface of deteriorated land and wadi, but it only affects its neighboring areas, and the other one is in the western Inner Mongolia Plateau, a ground surface of Gobi, alluvial and lacustrine sediments, but it causes most of the dust storms in north China. Generally speaking, dust storms have reduced in most regions of China from the 1950 to 2000. Dust storms are highly correlated with human activities and climate changes. (C) 2004 Elsevier Ltd. All rights reserved.