Use of montmorillonite-enriched sandstone to remediate a sandy mined soil
Jia, Junchao1,2,3; Yang, Xiaofeng1,2,3; Zhang, Pingping1,2,4,5; Zhang, Xingchang1,2,4
通讯作者Zhang, Xingchang(zhangxc@ms.iswc.ac.cn)
2019-05-01
发表期刊ECOLOGICAL ENGINEERING
ISSN0925-8574
卷号130页码:101-109
摘要Man-made soils (technosols) could be a practical alternative when the availability of suitable natural topsoil is limited in surface mine areas for reclamation. Screening potential topsoils is a necessary step to determine the suitability of materials for revegetation. This study aimed to obtain insights into the growth of alfalfa (Medicago sativa L.) on homogeneous and layered initial soils prepared with local natural materials (sandy soil and montmorillonite-enriched sandstone), before screening the optimal topsoil for alfalfa growth. Ten technosols were assessed in a growth study over 5 months by using the biomass production and root system as performance indicators. The shoot and root biomass production were highest in the treatment with a 20 cm montmorillonite-enriched sandstone layer at a depth of 20-40 cm, where the biomass production rate was approximately twice that in sandy soil. The root distribution according to the depth was more even in a homogeneous mixture of sandy soil combined with montmorillonite-enriched sandstone and the treatment with a 20 cm montmorillonite-enriched sandstone layer at a depth of 20-40 cm compared with the other eight options, possibly due to the higher water-holding capacity of the montmorillonite-enriched sandstone. The optimal technosol was determined as a 20 cm montmorillonite-enriched sandstone layer at a depth of 20-40 cm in a sandy matrix. The results of this study using locally sourced components for preparing topsoil could facilitate the development of strategies for mine reclamation.
关键词Alfalfa Layered soil Montmorillonite-enriched sandstone Root system Sandy soil
DOI10.1016/j.ecoleng.2019.01.014
关键词[WOS]OPENCAST COAL-MINE ; ALFALFA MEDICAGO-SATIVA ; LOESS PLATEAU ; ECOLOGICAL RESTORATION ; HYDRAULIC CONDUCTIVITY ; PISHA SANDSTONE ; ROOT-GROWTH ; TEXTURE ; RECLAMATION ; INFILTRATION
收录类别SCI ; SCI
语种英语
资助项目National Natural Science Foundation of China[41501236]
WOS研究方向Environmental Sciences & Ecology ; Engineering
项目资助者National Natural Science Foundation of China
WOS类目Ecology ; Engineering, Environmental ; Environmental Sciences
WOS记录号WOS:000463884100010
出版者ELSEVIER SCIENCE BV
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/14145
专题黄土与第四纪地质国家重点实验室(2010~)
通讯作者Zhang, Xingchang
作者单位1.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Minist Water Resources, Yangling 712100, Shaanxi, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China
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GB/T 7714
Jia, Junchao,Yang, Xiaofeng,Zhang, Pingping,et al. Use of montmorillonite-enriched sandstone to remediate a sandy mined soil[J]. ECOLOGICAL ENGINEERING,2019,130:101-109.
APA Jia, Junchao,Yang, Xiaofeng,Zhang, Pingping,&Zhang, Xingchang.(2019).Use of montmorillonite-enriched sandstone to remediate a sandy mined soil.ECOLOGICAL ENGINEERING,130,101-109.
MLA Jia, Junchao,et al."Use of montmorillonite-enriched sandstone to remediate a sandy mined soil".ECOLOGICAL ENGINEERING 130(2019):101-109.
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