干旱区生态环境知识资源中心(Arid): The variation, distribution, and geoaccumulation of Mn forms as affected by land physiographic position and agricultural practices

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DOI	10.1007/s12517-021-07289-8
	The variation, distribution, and geoaccumulation of Mn forms as affected by land physiographic position and agricultural practices
	Olia, Samereh Azari Komar; Rezapour, Salar
通讯作者	Rezapour, S (corresponding author), Urmia Univ, Soil Sci Dept, POB 165, Orumiyeh 57134, Iran.
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2021
卷号	14 期号:11
英文摘要	Understanding the impact of physiographic position and agricultural practices on Mn forms is an important option to improve current Mn management. This work mainly aimed to investigate the effects of land physiographic position and agricultural practices on Mn forms in soils under long-term continuous wheat (Triticum aestivum L.) cultivation. In this regard, the changes and distribution of total Mn (Mn-t), DTPA-extractable Mn (Mn-DTPA), free Mn (Mn-d), crystalline Mn (Mn-c), poor crystalline Mn (Mn-o), and organic complex Mn (Mn-p) were determined in the agricultural soils (under wheat cultivation) developed on different physiographic positions. These units included piedmont alluvial plain (PA), river alluvial plain (RA), plateau (PL), and lowland (LO). In addition, the geoaccumulation index (Igeo), enrichment factor (CF), and bio-concentration factor (BCF) of Mn in the soil-wheat system was investigated. The results show that agricultural practices have resulted in remarkable changes in the level and pattern of different forms of Mn, the indices of metal accumulation, and wheat yield components into physiographic positions. A considerable variation was recorded in Mn-t (206-1006 mg kg(-1)), Mn-DTPA (1.9-11 mg kg(-1)), Mn-d (32-250 mg kg(-1)), Mnc (3-135 mg kg(-1)), Mn-o (34-240 mg kg(-1)), and Mn-p (7-66 mg kg(-1)). Factor analysis, supported by correlation analysis, shows that particle-size distribution, organic carbon, calcium carbonate, SiO2, Al2O3, and Fe2O3 have the predominant influence on the distribution of Mn forms. All soil samples were not contaminated to moderately contaminated by Mn using the geoaccumulation index (Igeo) and enrichment factor (EF). The BCF values were also < 1, showing the inability of wheat to bioaccumulate Mn. Data show evidence concerning the effect of agricultural practices and physiographic position on Mn forms, allowing commendations for improving the management of the soil-wheat system in a semi-arid region. All soil sites can be considered safe for the production of healthy crops regarding soil-wheat pollution with Mn.
英文关键词	Enrichment factor Inceptisols Land physiographic Mn forms Wheat
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000687615700006
WOS关键词	TRACE-METALS ; SEMIARID SOILS ; HEAVY-METAL ; MANGANESE ; IRON ; FRACTIONS ; FE ; AVAILABILITY ; DITHIONITE ; ELEMENTS
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362520
作者单位	[Olia, Samereh Azari Komar; Rezapour, Salar] Urmia Univ, Soil Sci Dept, POB 165, Orumiyeh 57134, Iran
推荐引用方式 GB/T 7714	Olia, Samereh Azari Komar,Rezapour, Salar. The variation, distribution, and geoaccumulation of Mn forms as affected by land physiographic position and agricultural practices[J],2021,14(11).
APA	Olia, Samereh Azari Komar,&Rezapour, Salar.(2021).The variation, distribution, and geoaccumulation of Mn forms as affected by land physiographic position and agricultural practices.ARABIAN JOURNAL OF GEOSCIENCES,14(11).
MLA	Olia, Samereh Azari Komar,et al."The variation, distribution, and geoaccumulation of Mn forms as affected by land physiographic position and agricultural practices".ARABIAN JOURNAL OF GEOSCIENCES 14.11(2021).