干旱区生态环境知识资源中心(Arid): Risk Assessment of Irrigation-Related Soil Salinization and Sodification in Mediterranean Areas

Arid

DOI	10.3390/w12123569
	Risk Assessment of Irrigation-Related Soil Salinization and Sodification in Mediterranean Areas
	Tomaz, Alexandra; Palma, Patricia; Fialho, Sofia; Lima, Ana; Alvarenga, Paula; Potes, Miguel; Costa, Maria Joao; Salgado, Rui
通讯作者	Tomaz, A (corresponding author), Inst Politecn Beja, Escola Super Agr, R Pedro Soares S-N, P-7800295 Beja, Portugal. ; Tomaz, A (corresponding author), Univ Nova Lisboa, GeoBioTec, Campus Caparica, P-2829516 Caparica, Portugal.
来源期刊	WATER
EISSN	2073-4441
出版年	2020
卷号	12 期号:12
英文摘要	Salinization and sodification are important processes of soil degradation affecting irrigated lands. A large proportion of the global irrigated area is affected by some degree of soil salinity or sodicity caused by the intensification of irrigation. The increase of the frequency of adverse climatic conditions, like high temperatures and variations in precipitation patterns caused by climate change, will potentially amplify these processes in arid, semi-arid, and Mediterranean areas. The use of integrated approaches for the spatial and temporal prediction of the risk of salinization and sodification in irrigated areas is of great value, helping in the decision-making regarding land uses and choice of more suitable agricultural practices. In this study, based on key criteria for the assessment of irrigation-related salinization processes (e.g., climate, topography, soil drainage, water quality for irrigation, and crop irrigation method), we developed a methodology for the prediction of soil salinity and sodicity risk in irrigated lands, using two composite indices, the Salinization Risk (RSA) index and the Sodification Risk (RSO) index. The application of these indices to a real scenario (a Mediterranean area in Southern Portugal) showed that 67% of the potentially irrigated area presented a low risk of salinity development, 68% had a moderate risk of sodification, and 16% was of high risk of sodicity development. Areas under moderate risk of salinization (26%) were mostly characterized by low slopes and fine-textured soils, like Luvisols and Vertisols, with limited drainage conditions. Areas with high risk of soil sodification presented a large incidence of low slope terrain, moderate-to-restricted soil drainage, in high clay content Luvisols, Vertisols and Cambisols, and land use dominated by annual crops irrigated with surface or sprinkler systems. These risk prediction tools have the potential to be used for resource use planning by policymakers and on-farm management decision by farmers, contributing to the sustainability of irrigated agriculture in Mediterranean regions.
英文关键词	soil salinity soil sodicity water quality for irrigation risk evaluation Mediterranean regions
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000602783000001
WOS关键词	RESERVOIR GUADIANA BASIN ; CLIMATE-CHANGE ; STEADY-STATE ; SALINITY ; WATER ; SOUTHERN ; LAND ; MANAGEMENT ; IMPACTS ; QUALITY
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369221
作者单位	[Tomaz, Alexandra; Palma, Patricia; Fialho, Sofia; Lima, Ana] Inst Politecn Beja, Escola Super Agr, R Pedro Soares S-N, P-7800295 Beja, Portugal; [Tomaz, Alexandra] Univ Nova Lisboa, GeoBioTec, Campus Caparica, P-2829516 Caparica, Portugal; [Palma, Patricia; Potes, Miguel; Costa, Maria Joao; Salgado, Rui] Univ Evora, Inst Ciencias Terra ICT, IIFA, P-7000671 Evora, Portugal; [Alvarenga, Paula] Univ Lisbon, LEAF Ctr Invest Agron Alimentos Ambiente & Paisag, Inst Super Agron, P-1349017 Lisbon, Portugal; [Costa, Maria Joao; Salgado, Rui] Univ Evora, Dept Fis, Escola Ciencias & Tecnol, P-7000671 Evora, Portugal; [Potes, Miguel; Costa, Maria Joao; Salgado, Rui] Univ Evora, Earth Remote Sensing Lab EaRSLab, P-7000671 Evora, Portugal
推荐引用方式 GB/T 7714	Tomaz, Alexandra,Palma, Patricia,Fialho, Sofia,et al. Risk Assessment of Irrigation-Related Soil Salinization and Sodification in Mediterranean Areas[J],2020,12(12).
APA	Tomaz, Alexandra.,Palma, Patricia.,Fialho, Sofia.,Lima, Ana.,Alvarenga, Paula.,...&Salgado, Rui.(2020).Risk Assessment of Irrigation-Related Soil Salinization and Sodification in Mediterranean Areas.WATER,12(12).
MLA	Tomaz, Alexandra,et al."Risk Assessment of Irrigation-Related Soil Salinization and Sodification in Mediterranean Areas".WATER 12.12(2020).