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	Study of the energy abrasion rates of five soil types subject to oblique impacts
	Ta, Wanquan
刊名	GEODERMA
	2007-06-15
卷号	140期号:1-2页码:97-105
关键词	oblique impacts abrasion energy abrasion rate brittle cracking scanning electron microscope
ISSN号	0016-7061
DOI	10.1016/j.geoderma.2007.03.015
通讯作者	Ta, Wanquan(tawq@ns.lzb.ac.cn)
英文摘要	To measure the energy abrasion rates in inter-particle collisions, we bombarded 12 soil samples from five textural classes (sandy loam, silty loam, loam, silty clay loam, and silty clay) with 350 mu m diameter glass beads failing freely from heights of 5 to 100 cm. The results indicated that brittle cracking plays a major role in the erosion of brittle soil surfaces during bombardment with impacting particles. The occurrence of such brittle cracking would be likely to chip off large pieces of irregular, sharp-edged fragments and aggregates, and would also give rise to a wide range of abrasion rates and dust production rates under the same impact velocity and by the same impacting particles. The soil abrasion rate is approximately proportional to the impact energy, and inversely proportional to the PM2 content of the soil raised to the power 2.56 and the PM10 content of the soil raised to the power 3. The sandy loam, loam, silty loam, silty clay loam, and silty clay had averaged energy abrasion rates of 0.791, 0.300, 0.033, 0.024, and 0.008 g J(-1), respectively. (C) 2007 Elsevier B.V. All rights reserved.
收录类别	SCI
WOS关键词	DUST EMISSION SCHEME ; MINERAL DUST ; SALTATION BOMBARDMENT ; NORTH-ATLANTIC ; DESERT LOESS ; WIND ; TRANSPORT ; AEROSOL ; SURFACE ; PARTICLES
WOS研究方向	Agriculture
WOS类目	Soil Science
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000247479700011
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2555866
专题	寒区旱区环境与工程研究所
通讯作者	Ta, Wanquan
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Inst, Key Lab Desert & Desertificat, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Ta, Wanquan. Study of the energy abrasion rates of five soil types subject to oblique impacts[J]. GEODERMA,2007,140(1-2):97-105.
APA	Ta, Wanquan.(2007).Study of the energy abrasion rates of five soil types subject to oblique impacts.GEODERMA,140(1-2),97-105.
MLA	Ta, Wanquan."Study of the energy abrasion rates of five soil types subject to oblique impacts".GEODERMA 140.1-2(2007):97-105.

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