干旱区生态环境知识资源中心(Arid): Geochemical characterization of the salinity of irrigated soils in arid regions(Biskra,SE Algeria)

Arid

	Geochemical characterization of the salinity of irrigated soils in arid regions(Biskra,SE Algeria)
	Abdennour Mohamed Amine; Douaoui Abdelkader; Barrena Jesus; Pulido Manuel; Bradai Abdelhamid; Bennacer Amel; Piccini Chiara; Alfonso-Torreno Alberto
来源期刊	中国地球化学学报
ISSN	2096-0956
出版年	2021
卷号	40 期号:2 页码:2096-0956
英文摘要	The agriculture in Biskra,southeastern Algeria,is based on traditional practices and characterized by small irrigated fields.In the last decades,the increasing demand in water as well as the scarcity of rainfall has forced many farmers to use groundwater of low quality to maintain the profitability of their crops.Unfortunately,this practice seems to be the main harmful factor for soil quality in the region since it is responsible for the salinization of the irrigated areas.Aiming to assess the impact of this phenomenon,the soils of the irrigated perimeter of El Ghrous-a representative rural community located in the west of Biskra-have been analyzed.A set of 82 soil samples was collected from top and subsoil(0-15 and 15-35 cm respectively),on which the following physicochemical analyzes were performed:Ca~(2+),Mg~(2+),K~+,Na~+,Cl~-,SO_4~(2-),HCO_3~-,NO_3~-,pH,electrical conductivity(EC)and sodium adsorption ratio.A Principal Component Analysis was performed to individuate the geochemical processes that influenced significantly the evolution of soil salinity and its pathways.The results showed a calcium sulfate(CaSO_4)facies with a high risk of salinity and a low to medium risk of alkalinity.The calcite residual alkalinity and generalized residual alkalinity decreased as the solutions became more concentrated.Most of the samples were oversaturated in carbonate minerals(aragonite,calcite,and dolomite)and undersaturated in evaporitic minerals(anhydrite,gypsum,and halite).Finally,two multiple linear regressions(using cations and anions as independent variables)have been proposed to quantify soil salinity.These equations,with an accuracy of 85 %,can represent a time and money-saving tool for managers and farmers to estimate the EC,in comparison to the traditional estimation methods.
英文关键词	Electrical conductivity Cations Anions Soil quality Saturation index PHREEQC
类型	Article
语种	英语
国家	中国
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6942112
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/354553
作者单位	Abdennour Mohamed Amine, Laboratory of Ecosystem Diversity and Agricultural Production System Dynamics in Arid Zones(DEDSPAZA), Mohamed Khider University, Biskra, 07000, Algeria.; Douaoui Abdelkader, Laboratory of Crop Production and Sustainable Valorization of Natural Resources, Djilali Bounaama University, Khemis Miliana, 44225, Algeria.; Barrena Jesus, GeoEnvironmental Research Group, University of Extremadura, Caceres 10071, Spain.; Pulido Manuel, GeoEnvironmental Research Group, University of Extremadura, Caceres 10071, Spain.; Alfonso-Torreno Alberto, GeoEnvironmental Research Group, University of Extremadura, Caceres 10071, Spain.; Bradai Abdelhamid, Laboratory of Water and Environment, Hassiba Ben Bouali University, Chlef, 02180, Algeria.; Bennacer Amel, Laboratory of Valorization and Conservation of Biological Resources, Faculty of Sciences, Mohamed Bougara University, Boumerdes, 35000, Algeria.; Piccini Chiara, Research Centre for Agriculture and Environment, Council for Agricultural Research an...
推荐引用方式 GB/T 7714	Abdennour Mohamed Amine,Douaoui Abdelkader,Barrena Jesus,et al. Geochemical characterization of the salinity of irrigated soils in arid regions(Biskra,SE Algeria)[J],2021,40(2):2096-0956.
APA	Abdennour Mohamed Amine.,Douaoui Abdelkader.,Barrena Jesus.,Pulido Manuel.,Bradai Abdelhamid.,...&Alfonso-Torreno Alberto.(2021).Geochemical characterization of the salinity of irrigated soils in arid regions(Biskra,SE Algeria).中国地球化学学报,40(2),2096-0956.
MLA	Abdennour Mohamed Amine,et al."Geochemical characterization of the salinity of irrigated soils in arid regions(Biskra,SE Algeria)".中国地球化学学报 40.2(2021):2096-0956.