干旱区生态环境知识资源中心(Arid): 交通对干草原土壤物理性质影响的试验研究

Arid

	交通对干草原土壤物理性质影响的试验研究
其他题名	IMPACT OF TRAFFIC ON PHYSICAL PROPERTIES OF ARID GRASSLAND SOILS
	胡霞; 刘连友; 孙永亮; 王志; 宋阳; 刘目兴; 王蕾
ISSN	0564-3929
出版年	2006
卷号	43 期号:2 页码:215-219
中文摘要	通过野外模拟实验，测定不同车速条件下草原交通便道相对起尘量，同时测定交通工具对草原土体结构的破坏，研究交通工具对干草原土壤物理性质的影响。研究结果表明，随着车速的增加，道路相对起尘量逐渐增加，且相对起尘量与车速之间呈现二次函数关系；在车轮的碾压作用下，土壤结构遭到破坏并形成直径在0．063～1．0mm之间的颗粒，随着碾压次数的增加，破碎颗粒的直径基本上都集中在0．1250．18mm之间，且破碎土体总量也呈现增加趋势；车轮的碾压会导致土壤表面抗压强度增加，同时也使得土壤容重呈现增加趋势。
英文摘要	Effects of traffic on soil properties are poorly understood, and very few methods are available for measurement of these effects. In this paper, dusting rate under vehicles different in velocity and destruction of structures of the soils were measured to explore impact of traffic on physical properties of soils of arid grasslands. Experiments were conducted with vehicle simulation under field conditions. These experiments involve four velocities （ V = 20, 30, 40, and 50 km h^- 1 ）, seven frequencies of crushing （0, 5, 10, 15, 20, 25 and 30 times） and four soil surfaces （heavily eroded land, medium eroded land, newly eroded land and grassland）. The results indicate that under the impact of wheels, soil structures would be destroyed forming soils particles 0.063 - 1.0 mm in size in the soil surface. With frequent crushing of wheels, soil particle sizes would vary in the range of 0. 125 - 0.18 mm, and the amount of broken soil mass would increase. Also, the dusting rate would increase with the velocity of the vehicles, showing a quadratic function relationship. Moreover, vehicles could affect bulk density and compression strength of the soils, and they would increase with frequency of the compaction of wheels.
中文关键词	草原交通便道 ; 土壤结构 ; 起尘量 ; 风蚀
英文关键词	Traffic roads in grassland Soil structure Dusting rate Wind erosion
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:2331450
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220237
作者单位	北京师范大学资源学院, 北京 100875, 中国
推荐引用方式 GB/T 7714	胡霞,刘连友,孙永亮,等. 交通对干草原土壤物理性质影响的试验研究[J]. 北京师范大学,2006,43(2):215-219.
APA	胡霞.,刘连友.,孙永亮.,王志.,宋阳.,...&王蕾.(2006).交通对干草原土壤物理性质影响的试验研究.,43(2),215-219.
MLA	胡霞,et al."交通对干草原土壤物理性质影响的试验研究".43.2(2006):215-219.