干旱区生态环境知识资源中心(Arid): Risk of Salinization in the Agricultural Soils of Semi-Arid Regions: A Case Study from Moldavian Plain (NE Romania)

Arid

DOI	10.3390/su142417056
	Risk of Salinization in the Agricultural Soils of Semi-Arid Regions: A Case Study from Moldavian Plain (NE Romania)
	Stan, Cristina Oana; Pirnau, Radu Gabriel; Rosca, Bogdan; Sirbu-Radasanu, Doina Smaranda
通讯作者	Stan, CO
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2022
卷号	14 期号:24
英文摘要	In the present study, the salinization trends of different soil types from a small hydrographic basin situated in NE Romania (Rosior basin) are investigated. The climatic conditions are favorable for long dry summers and intensive evaporation. The soils are developed on immature evolved clay sediments, as revealed by geochemical analysis. The salinity varies among soil types, attaining maximum values for Solonetz with total dissolved salts (TDS) between 1165.75 to 1881.25 mg/L. The aqueous solutions are represented by natural water and soil solution. The hydrogeochemical facies of the natural waters change from HCO3--Mg2+ in the upper basin to SO42--Na+ in the middle or lower basin. The soil solution is moderately or strongly salinized and shows anionic variations from HCO3- to SO42- in the studied profiles, whereas Na+ is always the main cation. The concentrations of Na+ and SO42- evolve simultaneously. Raman spectroscopic exploration of the white efflorescences, which occur on topsoil, reveals the presence of thenardite as the dominant phase. The composition of soil solution results from both the ionic exchange and evaporation processes. The nature of soil solution mineralization and summer temperatures are two main factors that interact and promote the thenardite precipitation. The soil salinization induces negative effects on crop nutrition, impacting further the crop yields. The results of this study can be extrapolated to larger areas formed on Sarmatian sedimentary deposits affected by salinization processes.
英文关键词	salinization sodic soil thenardite Raman spectroscopy
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000904300400001
WOS关键词	SALINITY ; SPECTROSCOPY ; EVOLUTION ; SEDIMENTS ; SULFATE ; GROWTH
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394693
推荐引用方式 GB/T 7714	Stan, Cristina Oana,Pirnau, Radu Gabriel,Rosca, Bogdan,et al. Risk of Salinization in the Agricultural Soils of Semi-Arid Regions: A Case Study from Moldavian Plain (NE Romania)[J],2022,14(24).
APA	Stan, Cristina Oana,Pirnau, Radu Gabriel,Rosca, Bogdan,&Sirbu-Radasanu, Doina Smaranda.(2022).Risk of Salinization in the Agricultural Soils of Semi-Arid Regions: A Case Study from Moldavian Plain (NE Romania).SUSTAINABILITY,14(24).
MLA	Stan, Cristina Oana,et al."Risk of Salinization in the Agricultural Soils of Semi-Arid Regions: A Case Study from Moldavian Plain (NE Romania)".SUSTAINABILITY 14.24(2022).