Use of montmorillonite-enriched siltstone for improving water condition and plant growth in sandy soil

doi:10.1016/j.ecoleng.2020.105740

IEECAS OpenIR > 生态环境研究室

	Use of montmorillonite-enriched siltstone for improving water condition and plant growth in sandy soil
	Zhang, Yanle 1,2; Zhen, Qing 1,3; Cui, Yongxing 1,2; Zhang, Pingping 4; Zhang, Xingchang 1,2,3,5
通讯作者	Zhang, Xingchang(zhangxc@ms.iswc.ac.cn)
	2020-02-15
发表期刊	ECOLOGICAL ENGINEERING
ISSN	0925-8574
卷号	145 页码:9
摘要	Revegetation in arid and semi-arid regions is restricted by soil water shortage. Improvement of sandy soil properties, especially for soil water related properties, is therefore vital for successful revegetation. In this study, montmorillonite-enriched siltstone (MS), a type of fine particle soil material, was used to improve sandy soil in a field experiment with four volume proportions: 0% (M-0%), 25% (M-25%), 75% (M-75%), and 100% (M-100%) of MS, which was then planted with alfalfa (Medicago sativa) for 3 years. The objective was to investigate the improvement effect of MS on the physical properties of sandy soil and its support for plant growth. The results showed that the addition of MS significantly increased the soil physical quality (SPQ) indicators, such as available water capacity (AWC), which increased from 7.39% (M-0%) to 10.18% (M-100%), while hydraulic conductivity (Ks) decreased by 34.1% (M-25%) and 57.5% (M-75%), and bulk soil air capacity (ACB) decreased by 12.6% (M-25%) and 39.4% (M-75%). These results were mainly related to the high content of fine particles in MS, such as montmorillonite, a 2:1 clay mineral. The average profile soil water content (SWC) increased from 9.20% to 14.08% (M-25%) and 24.62% (M-75%). The temporal stability of SWC was also significantly increased by MS addition, while drainage was significantly decreased. Both above-ground biomass (ABG) and water use efficiency (WUE) increased by approximately two times in M-25% and M-75% in 2015 and five times in M-25% and M-75% in 2016. This result verified the positive effect of MS addition on sandy soil properties. However, more than 75% MS addition (such as M-100%) in sandy soil decreased ACB to less than 15% and decreased ABG by 75.3% compared with that of M-75%. This study gives a new strategy for improving sandy soil using local finer materials with a high content of montmorillonite. Considering the improvement effects and engineering cost, a 25% volume proportion of MS was recommended.
关键词	Ecological restoration Sandy soil Soil physical quality Soil water content Temporal stability
DOI	10.1016/j.ecoleng.2020.105740
关键词[WOS]	LOESS PLATEAU ; TEMPORAL STABILITY ; PHYSICAL QUALITY ; PISHA SANDSTONE ; GAS-EXCHANGE ; CROP YIELDS ; ROOT-GROWTH ; REVEGETATION ; STORAGE ; IMPACT
收录类别	SCI ; SCI
语种	英语
资助项目	Chinese Academy of Sciences[KZCX2-XB3-13-02] ; National Natural Science Foundation of China[41501236] ; Open Research Fund of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021402-1706] ; Open Research Fund of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021402-2019]
WOS研究方向	Environmental Sciences & Ecology ; Engineering
项目资助者	Chinese Academy of Sciences ; National Natural Science Foundation of China ; Open Research Fund of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau
WOS类目	Ecology ; Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000522661400013
出版者	ELSEVIER
引用统计	被引频次：10[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/361006/12548
专题	生态环境研究室
通讯作者	Zhang, Xingchang
作者单位	1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary, Xian 710061, Shaanxi, Peoples R China 5.Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yanle,Zhen, Qing,Cui, Yongxing,et al. Use of montmorillonite-enriched siltstone for improving water condition and plant growth in sandy soil[J]. ECOLOGICAL ENGINEERING,2020,145:9.
APA	Zhang, Yanle,Zhen, Qing,Cui, Yongxing,Zhang, Pingping,&Zhang, Xingchang.(2020).Use of montmorillonite-enriched siltstone for improving water condition and plant growth in sandy soil.ECOLOGICAL ENGINEERING,145,9.
MLA	Zhang, Yanle,et al."Use of montmorillonite-enriched siltstone for improving water condition and plant growth in sandy soil".ECOLOGICAL ENGINEERING 145(2020):9.