干旱区生态环境知识资源中心(Arid): Mitigation of soil salinization and alkalization by bacterium-induced inhibition of evaporation and salt crystallization

Arid

DOI	10.1016/j.scitotenv.2020.142511
	Mitigation of soil salinization and alkalization by bacterium-induced inhibition of evaporation and salt crystallization
	Wang, Ziyan; Tan, Wenjuan; Yang, Dengqin; Zhang, Keqing; Zhao, Liwei; Xie, Zhengguo; Xu, Tao; Zhao, Yuwei; Wang, Xiaonan; Pan, Xiangliang; Zhang, Daoyong
通讯作者	Zhang, DY (corresponding author), Zhejiang Univ Technol, Coll Environm, Hangzhou 310014, Peoples R China.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2021
卷号	755
英文摘要	Soil salinization and alkalization is one of the most devastating environmental problems, threatening the sustainable development of agriculture. Bio-amelioration using microorganisms such as bacteria is a promising method for the remediation of calcareous sodic and saline-sodic soil due to its high efficiency, low cost and environmental-friendly characteristics. In the present study, a salt resistant bacterium, Bacillus subtilis BSN-1, was isolated from arid region in Xinjiang, China, and its effects on salt crystallization during evaporation crystallization of saline-alkali soil solution were examined. It was found that the fermentation products of B. subtilis BSN-1, such as glutamic acid, significantly lowered the pH of saline soil solution because of the ionization of carboxyl. The complexation between Ca2+ and fermentation products inhibited the precipitation of Ca-P compounds as well, since the binding sites supplied for Ca2+ is one or two orders of magnitude than that for HPO42-. Moreover, the increased content of active phosphate is attributed to the chelation and adsorption exerted through carboxyl and amide bonds. These findings demonstrated that Bacillus subtilis BSN-1 suppressed the crystallization of phosphate and therefor increased the content of active phosphate, which may provide a promising solution for amendment and remediation of saline-alkali soil. (C) 2020 Elsevier B.V. All rights reserved.
英文关键词	Bacillus subtilis BSN-1 Evaporation crystallization Saline soil HPO42- Ca2+
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000600537400049
WOS关键词	GAMMA-GLUTAMIC ACID ; POLY-(GAMMA-GLUTAMIC ACID) ; POLY(GAMMA-GLUTAMIC ACID) ; PHOSPHATE ; SALINITY ; GROWTH ; AMELIORATION ; RESTORATION ; REMEDIATION ; ADSORPTION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348197
作者单位	[Wang, Ziyan; Yang, Dengqin; Zhang, Keqing; Zhao, Liwei; Xie, Zhengguo; Xu, Tao; Zhao, Yuwei; Wang, Xiaonan; Pan, Xiangliang; Zhang, Daoyong] Zhejiang Univ Technol, Coll Environm, Key Lab Microbial Technol Ind Pollut Control Zhej, Hangzhou 310014, Peoples R China; [Tan, Wenjuan; Pan, Xiangliang; Zhang, Daoyong] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Key Lab Environm Pollut & Bioremediat, Urumqi 830011, Peoples R China; [Tan, Wenjuan] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ziyan,Tan, Wenjuan,Yang, Dengqin,et al. Mitigation of soil salinization and alkalization by bacterium-induced inhibition of evaporation and salt crystallization[J]. 中国科学院新疆生态与地理研究所,2021,755.
APA	Wang, Ziyan.,Tan, Wenjuan.,Yang, Dengqin.,Zhang, Keqing.,Zhao, Liwei.,...&Zhang, Daoyong.(2021).Mitigation of soil salinization and alkalization by bacterium-induced inhibition of evaporation and salt crystallization.SCIENCE OF THE TOTAL ENVIRONMENT,755.
MLA	Wang, Ziyan,et al."Mitigation of soil salinization and alkalization by bacterium-induced inhibition of evaporation and salt crystallization".SCIENCE OF THE TOTAL ENVIRONMENT 755(2021).