干旱区生态环境知识资源中心(Arid): 成兰铁路受损边坡土壤抗冲性及其影响因素

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	成兰铁路受损边坡土壤抗冲性及其影响因素
其他题名	Soil Anti-Scourability and Its Influence Factors of Damaged Steep Slope of Chenglan Railway
	韩美清; 吴维洲; 万炳宏; 闫晓俊; 冯潇; 柯尧; 郑江坤
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2021
卷号	28 期号:5 页码:400-406
中文摘要	高陡边坡框格回填土抗冲性是边坡绿化研究的重点,为探究成兰铁路受损边坡不同恢复时期土壤抗冲性变化特征及其影响因素,以成兰铁路镇江关段(Z)和川主寺段(C)的受损边坡(Z2,C2)为研究对象,以原始植被区(Z1, C1)和自然恢复区(Z3,C3)为对照,采用原状土冲刷法和通径分析进行了研究。结果表明:土壤抗冲刷系数和径流含沙量随着冲刷时间的增加分别呈上升和下降趋势,均呈幂函数变化,亚高山区土壤的抗冲刷系数整体高于干旱河谷区,原始植被区土壤抗冲性最大,人工回填区最小;有机质含量、土壤密度、总孔隙度和土壤容重是成兰铁路松潘段受损边坡土壤抗冲性的主导因素,其中土壤密度对土壤抗冲性表现出最强烈的直接作用。提高人工回填土中有机质含量和土壤总孔隙度可提高土壤抗冲性,可为植被恢复提供重要土壤条件。
英文摘要	Northwestern Sichuan Province is an important ecological barrier in the upper reaches of the Yangtze River Basin.Anti-scourability of frame backfill soil was the focus in a large number of high and steep slopes of infrastructure projects,such as highways,railways and buildings.In order to explore the characteristics and influences of soil anti-scourability in different recovery periods of damaged slopes near Chenglan Railway,the zones of Zhenjiangguan and Chuanzhusi town were divided into original vegetation area(Z1, C1),artificial backfill area(Z2,C2),and natural restoration area(Z3,C3),which belong to dry valley area and subalpine area,respectively.Undisturbed soil scouring experiment and path analysis were applied to study soil anti-scourability and main factors.The results showed that sediment concentration and soil antiscourability index decreased and increased with the increase of scouring time,respectively,and gradually became stable after 10minute.The relationship between sediment concentration,scouring time and soil antiscourability index can be expressed by power function.The anti-scourability of artificial backfill soil was the worst,followed by that of natural restoration area and original vegetation area.On the whole,the soil antiscourability of subalpine area was greater than that of dry valley area.Through correlation analysis and path analysis,organic matter content,soil density,total porosity and soil bulk density were the leading factors affecting the soil anti-scourability of high and steep slopes near Chenglan Railway,in which soil density showed the strongest direct effect on soil anti-scourability.Increasing the content of soil organic matter and soil total porosity in artificial backfill soil can improve soil anti-scourability,and then provide important basis for vegetation restoration.
中文关键词	水土保持与荒漠化防治 ; 土壤抗冲性 ; 通径分析 ; 高陡边坡 ; 成兰铁路
英文关键词	soil and water conservation &desertification combating soil anti-scourability path analysis high and steep slope Chenglan Railway
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:7035588
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377946
作者单位	韩美清, 中国铁道科学研究院集团有限公司节能环保劳卫研究所;;中国国家铁路集团有限公司工程管理中心, ;;, ;;, 北京;;北京 100038;;100038, 中国.; 吴维洲, 成兰铁路有限责任公司, 成都, 四川 610036, 中国.; 万炳宏, 中铁二十五局集团第一工程有限公司, 广州, 广东 510405, 中国.; 闫晓俊, 四川农业大学风景园林学院, 成都, 四川 611130, 中国.; 冯潇, 四川农业大学林学院, 成都, 四川 611130, 中国.; 郑江坤, 四川农业大学林学院, 成都, 四川 611130, 中国.; 柯尧, 中铁二院工程集团有限责任公司, 成都, 四川 610031, 中国.
推荐引用方式 GB/T 7714	韩美清,吴维洲,万炳宏,等. 成兰铁路受损边坡土壤抗冲性及其影响因素[J],2021,28(5):400-406.
APA	韩美清.,吴维洲.,万炳宏.,闫晓俊.,冯潇.,...&郑江坤.(2021).成兰铁路受损边坡土壤抗冲性及其影响因素.水土保持研究,28(5),400-406.
MLA	韩美清,et al."成兰铁路受损边坡土壤抗冲性及其影响因素".水土保持研究 28.5(2021):400-406.