How backfill soil type influencing on Cd and Pb migration in artificial soil on railway rock-cut slopes

doi:10.1016/j.scitotenv.2019.02.034

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	How backfill soil type influencing on Cd and Pb migration in artificial soil on railway rock-cut slopes
	Chen, Zhaoqiong 1; Liu, Xin 1; Ai, Yingwei 2; Chen, Jiao 2; Luo, Xiaoming 1; Yang, Shu 1; Kang, Zhen 1; Zhong, Shihong 1; Li, Wei3
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2019-05-15
卷号	665 页码:531-537
关键词	Artificial soil Backfill soil type Soil erosion Soil quality index Environmental risk
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2019.02.034
通讯作者	Luo, Xiaoming(chenzhaoqiong@126.com)
英文摘要	Cadmium (Cd) and lead (Pb) that accumulates in the surface soil of railway rock-cut slopes may migrate to nearby croplands. It is important to determine whether backfill soil type influences the transportation of Cd and Pb in the surface soil. Representative rock-cut slopes, backfill soil of 100% rock fragments, 100% agricultural soil, and 50% agricultural soil and 50% rock fragments (n=2 for each type) were selected. The pollution and migration levels of Cd and Pb and the soil quality and erodibility were investigated. The soil concentrations of Cd and Pb on the rock-cut slopes were much higher than those of China soil quality standard. Soil erosion was the most important factor that influences the migration of Cd and Pb in the slopes. Increasing the percentage of agricultural soil in the backfill soil resulted in decreasing the diffusion of Cd and Pb by reducing soil erosion. The backfill soil affected the soil quality and erosion durability, which, in turn, affected the transportation of Cd and Pb in the runoff. The soil quality index (SQI) accurately reflects the soil quality and can serve as an indicator of the migration of Cd and Pb on the surface soil of the slopes. Therefore, agricultural soil was more appropriate to use as a backfill soil in slope revegetation practice than was the rock fragment, which was helpful for decreasing the environmental risk of Cd and Pb on the slopes. (c) 2019 Elsevier B.V. All rights reserved.
资助项目	National Science Foundation of China[41501112] ; Key Project of Education Department of Sichuan Province[16ZA0279] ; Applied Basic Research Project of Science and Technology Department of Sichuan Province[2016JY0036]
WOS关键词	HEAVY-METAL POLLUTION ; PHYSICAL-PROPERTIES ; AGRICULTURAL SOILS ; NITROGEN LOSS ; REVEGETATION ; QUALITY ; TRANSPORTATION ; CONTAMINATION ; ENRICHMENT ; EROSION
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000460628600053
资助机构	National Science Foundation of China ; Key Project of Education Department of Sichuan Province ; Applied Basic Research Project of Science and Technology Department of Sichuan Province
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/25296]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者	Luo, Xiaoming
作者单位	1.Chengdu Med Coll, Chengdu 610500, Sichuan, Peoples R China 2.Sichuan Univ, Coll Life Sci, Minist Educ, Key Lab Bioresources & Ecoenvironm, Chengdu 610064, Sichuan, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Chen, Zhaoqiong,Liu, Xin,Ai, Yingwei,et al. How backfill soil type influencing on Cd and Pb migration in artificial soil on railway rock-cut slopes[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,665:531-537.
APA	Chen, Zhaoqiong.,Liu, Xin.,Ai, Yingwei.,Chen, Jiao.,Luo, Xiaoming.,...&Li, Wei.(2019).How backfill soil type influencing on Cd and Pb migration in artificial soil on railway rock-cut slopes.SCIENCE OF THE TOTAL ENVIRONMENT,665,531-537.
MLA	Chen, Zhaoqiong,et al."How backfill soil type influencing on Cd and Pb migration in artificial soil on railway rock-cut slopes".SCIENCE OF THE TOTAL ENVIRONMENT 665(2019):531-537.