Impacts of coal fly ash on plant growth and accumulation of essential nutrients and trace elements by alfalfa (Medicago sativa) grown in a loessial soil

doi:10.1016/j.jevman.2017.04.028

	Impacts of coal fly ash on plant growth and accumulation of essential nutrients and trace elements by alfalfa (Medicago sativa) grown in a loessial soil
	He, Honghua 1,2; Dong, Zhigang 1,2; Peng, Qi 2,3; Wang, Xia 2,3; Fan, Chenbin 1; Zhang, Xingchang 1,2
刊名	JOURNAL OF ENVIRONMENTAL MANAGEMENT
	2017-07-15
卷号	197 页码:428-439
关键词	Alkaline and calcareous soil Macronutrients Micronutrients Selenium Soil amendment
ISSN号	0301-4797
DOI	10.1016/j.jevman.2017.04.028
通讯作者	He, Honghua(honghuahe@ms.iswc.ac.cn)
英文摘要	Coal fly ash (CFA) is a problematic solid waste all over the world. One distinct beneficial reuse of CFA is its utilization in land application as a soil amendment. A pot experiment was carried out to assess the feasibility of using CFA to improve plant growth and increase the supply of plant-essential elements and selenium (Se) of a loessial soil for agricultural purpose. Plants of alfalfa (Medicago sativa) were grown in a loessial soil amended with different rates (5%, 10%, 20% and 40%) of CFA for two years and subjected to four successive cuttings. Dry mass of shoots and roots, concentrations of plant-essential elements and Se in plants were measured. Shoot dry mass and root dry mass were always significantly increased by 5%, 10% and 20% CFA treatments, and by 40% CFA treatment in all harvests except the first one. The CFA had a higher supply of exchangeable phosphorus (P), magnesium (Mg), copper (Cu), zinc (Zn), molybdenum (Mo), and Se than the loessial soil. Shoot P, calcium (Ca), Mg, Mo, boron (B), and Se concentrations were generally markedly increased, but shoot potassium (K), Cu, and Zn concentrations were generally reduced. The CFA can be a promising source of some essential elements and Se for plants grown in the loessial soil, and an application rate of not higher than 5% should be safe for agricultural purpose without causing plant toxicity symptoms in the studied loessial soil and similar soils. Field trials will be carried out to confirm the results of the pot experiment. (C) 2017 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[41301570] ; West Light Foundation of the Chinese Academy of Sciences ; West China Action Program of the Chinese Academy of Sciences[KZCX2-X133-13] ; Fundamental Research Funds for Central Universities
WOS关键词	SELENIUM BIOFORTIFICATION ; METAL ACCUMULATION ; AMENDED SOIL ; CHINA ; YIELD ; REVEGETATION ; PHOSPHORUS ; CHALLENGES ; RESPONSES ; DYNAMICS
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
WOS记录号	WOS:000401880100042
资助机构	National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West China Action Program of the Chinese Academy of Sciences ; Fundamental Research Funds for Central Universities
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/63440]
专题	中国科学院地理科学与资源研究所
通讯作者	He, Honghua
作者单位	1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	He, Honghua,Dong, Zhigang,Peng, Qi,et al. Impacts of coal fly ash on plant growth and accumulation of essential nutrients and trace elements by alfalfa (Medicago sativa) grown in a loessial soil[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2017,197:428-439.
APA	He, Honghua,Dong, Zhigang,Peng, Qi,Wang, Xia,Fan, Chenbin,&Zhang, Xingchang.(2017).Impacts of coal fly ash on plant growth and accumulation of essential nutrients and trace elements by alfalfa (Medicago sativa) grown in a loessial soil.JOURNAL OF ENVIRONMENTAL MANAGEMENT,197,428-439.
MLA	He, Honghua,et al."Impacts of coal fly ash on plant growth and accumulation of essential nutrients and trace elements by alfalfa (Medicago sativa) grown in a loessial soil".JOURNAL OF ENVIRONMENTAL MANAGEMENT 197(2017):428-439.