Sources of Asian dust and role of climate change versus desertification in Asian dust emission
Sources of Asian dust and role of climate change versus desertification in Asian dust emission
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DOI：
10.1029/2003gl018206
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发表时间：
2003-12
影响因子：
5.2
通讯作者：
Xiaoye Zhang;S. Gong;S. Gong;T. L. Zhao;R. Arimoto;Yaqiang Wang;Z. J. Zhou
中科院分区：
文献类型：
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作者：
Xiaoye Zhang;S. Gong;S. Gong;T. L. Zhao;R. Arimoto;Yaqiang Wang;Z. J. Zhou
本文基于一个与粒径相关的土壤粉尘排放和传输模型（NARCM）沿着来自地面站网络的支持数据，对过去43年来亚洲粉尘排放进行了模拟。蒙古、中国西部和北方（主要是塔克拉玛干沙漠和巴丹朱兰沙漠）的沙尘排放量占总排放量的70%;非中国来源占其中的40%。在过去的20年里，一些地区，特别是翁沁达嘎桑迪、科尔沁桑迪和毛乌素沙漠的沙尘排放量有所增加，但在这些地区减少荒漠化的努力可能对亚洲沙尘排放量影响不大，因为这些地区不是主要来源。模式模拟表明，气象和气候对亚洲沙尘排放和相关的亚洲沙尘暴发生的影响比荒漠化更大。
Simulations of Asian dust emissions over the past 43 years are presented based on a size‐dependent soil dust emission and transport model (NARCM) along with supporting data from a network of surface stations. The deserts in Mongolia and in western and northern China (mainly the Taklimakan and Badain Juran, respectively) contribute ∼70% of the total dust emissions; non‐Chinese sources account for ∼40% of this. Several areas, especially the Onqin Daga sandy land, Horqin sandy land, and Mu Us Desert, have increased in dust emissions over the past 20 years, but efforts to reduce desertification in these areas may have little effect on Asian dust emission amount because these are not key sources. The model simulations indicate that meteorology and climate have had a greater influence on the Asian dust emissions and associated Asian dust storm occurrences than desertification.