CYCLIC MODEL,TRANSPORT AND DEPOSITION OF URBAN DUST IN XI'AN CITY
HAN Yong-ming1, DU Pei-xuan1, LI Zhi-ming2
1. Earth Science and Land Resources College, Chang'an University, Xi'an 710054, China;
2. Xi'an Institute of Geology and Mineral Resources, Xi'an 710054, China
The transport and deposition of urban dust are highly relevant to the composition of its grain diameters. Generally speaking, coarse grains, mediate to fine grains and extremely fine grains are transported in the forms of rolling, skipping, and suspending, respectively. Urban dust grains in Xi'an come primarily from particles transported by means of skipping through relatively long or great distance, next from those transported by means of rolling from a short distance away, and, to a lesser amount, from those carried in the form of suspending through a long distance, with the last form only accounting for approximately 12% of the total grains.
韩永明, 杜佩轩, 李智明. 西安市灰尘循环模式及搬运沉积[J]. 物探与化探, 2003, 27(3): 227-229.
HAN Yong-ming, DU Pei-xuan, LI Zhi-ming . CYCLIC MODEL,TRANSPORT AND DEPOSITION OF URBAN DUST IN XI'AN CITY. Geophysical and Geochemical Exploration, 2003, 27(3): 227-229.