干旱区生态环境知识资源中心(Arid): Quantitative assessment of soil quality indices for urban croplands in a calcareous semi-arid ecosystem

Arid

DOI	10.1016/j.geoderma.2020.114781
	Quantitative assessment of soil quality indices for urban croplands in a calcareous semi-arid ecosystem
	Mamehpour, N.; Rezapour, Salar; Ghaemian, N.
通讯作者	Rezapour, S
来源期刊	GEODERMA
ISSN	0016-7061
EISSN	1872-6259
出版年	2021
卷号	382
英文摘要	Urbanization-induced soil quality degradation is a global challenge in both developed and developing nations which can be responsible for the reduced health and productivity of agmecosystems. However, available data are very limited as to the impacts of urbanization on different quantitative scenarios of soil quality indices (SQI). The present study determined and investigated 24 variables including a combination of fertility, salinity, and sodicity attributes and heavy elements of surface soils (0 to 50 cm depth) for 14 soil profiles of urban (10 profiles) and non-urban (4 profiles as control) fields. The quantitative SQI of the urban soils and the control field was compared using two models of the Integrated Quality Index (IQI) and Nemom Quality Index (NQI), various indicators selecting approaches [total data set (TDS) and minimum data set (MDS)], and scoring methods (linear and non-linear) under different soil types (Calcisols, Cambisols, Fluvisols, and Regosols). The results revealed that urbanization had influenced soil quality both negatively (e.g. an increase in soil salinity (EC), sodium adsorption ratio (SAR), exchangeable sodium percentage (ESP), Soil erodibility factor (K-factor), and heavy metals (Zn, Cu, Cd, Pb, and Ni)) and positively (e.g. an increase in organic matter, total N, available P, and cation exchange capacity), but the negative impacts found to outnumber the positive impacts. Comparing to the control soil, the urban soil exhibited a drop of 12.5-22% and a rise of 16-24% in all SQI scenarios and K-factor, respectively, implying that urbanization has aggravated soil quality degradation. Given both urban and control soils, the highest values of all SQI scenarios were recorded for Fluvisols, followed by Cambisols, Calcisols, and Regosols clearly reflecting the combined influence of soil type (as intrinsic factors) and agricultural management practices (as an extrinsic factor) on soil quality. All SQI scenarios were significantly and positively correlated to one another with correlation coefficients ranging from 0.80 to 0.96, suggesting that any of them could be applied to monitor soil quality. Nevertheless, the SQI determined based on IQI-MDS and the non-linear scoring method had better performance and discrimination in the assessment of soil quality than the other SQI scenarios with respect to direct comparison, Pearson correlation coefficients, sensitive index values, K-factor, time and money-saving, and the regression coefficient between SQI and maize yield.
英文关键词	Erodibility factor Soil degradation Soil quality index Soil type Urban soil
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000590747200032
WOS关键词	MINIMUM DATA SET ; DIFFERENT LAND USES ; TRACE-METALS ; DEGRADATION ; SYSTEMS ; ACCUMULATION ; IRRIGATION ; INDICATORS ; CHINA ; TOOL
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328006
作者单位	[Mamehpour, N.; Rezapour, Salar] Urmia Univ, Soil Sci Dept, POB 165, Orumiyeh 57134, Iran; [Ghaemian, N.] West Azarbaijan Agr Res Ctr & Nat Resources, Orumiyeh, Iran
推荐引用方式 GB/T 7714	Mamehpour, N.,Rezapour, Salar,Ghaemian, N.. Quantitative assessment of soil quality indices for urban croplands in a calcareous semi-arid ecosystem[J],2021,382.
APA	Mamehpour, N.,Rezapour, Salar,&Ghaemian, N..(2021).Quantitative assessment of soil quality indices for urban croplands in a calcareous semi-arid ecosystem.GEODERMA,382.
MLA	Mamehpour, N.,et al."Quantitative assessment of soil quality indices for urban croplands in a calcareous semi-arid ecosystem".GEODERMA 382(2021).