干旱区生态环境知识资源中心(Arid): Development of secondary salinity and salt migration in the irrigated landscape of hot arid India

Arid

DOI	10.1007/s12665-019-8460-4
	Development of secondary salinity and salt migration in the irrigated landscape of hot arid India
	Moharana, P. C.1; Singh, R. S.1; Singh, S. K.2; Tailor, B. L.1; Jena, R. K.3; Meena, M. D.4
通讯作者	Moharana, P. C.
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2019
卷号	78 期号:15
英文摘要	The present paper examines the nature of salt movement by the influence of landscape position and development of secondary salinity in Indira Gandhi Nahar Pariyojana command area of hot arid India. Soil samples were collected along 20km transect across landscapes of upland, medium land, lowland and wetland. Soil properties, electrical conductivity of saturated extract (ECe), soluble ions in saturated extracts, exchangeable sodium percentage (ESP) and sodium adsorption ratio were determined. Results showed that cation exchange capacity, organic carbon and CaCO3 were significantly increased in lowland and wetland while soil pH, salinity indicators (ECe and ESP) and exchangeable cations and anions such as chloride and sulphate were increased significantly (P<0.05) in the wetland. The mean exchangeable Na was increased while exchangeable Ca, Mg, and K decreased from upland to wetland landscape. It was found that Cl- imposed an existing and potential threat to sensitive crops in medium to wetland, where Cl- concentrations were greater than 106 me L-1. Principal component analysis helped in the identification of the parameters responsible for soil salinity variation, and the first factor indicated that soil ECe and ESP had a major role in the development of salinity and sodicity, respectively. Cluster analysis grouped four sampling sites into three clusters and members of the third cluster (lowland and wetland) were in close proximity. Under the prevalent arid conditions, improving the management of irrigation water should be the indispensable one to conserve and sustain the already fragile agricultural soils in the hot arid regions of India.
英文关键词	Soil properties Soil salinization Salt dynamics Irrigation Arid ecosystem
类型	Article
语种	英语
国家	India
收录类别	SCI-E
WOS记录号	WOS:000476489300023
WOS关键词	SOIL SALINIZATION ; ORGANIC-CARBON ; ENVIRONMENT ; MANAGEMENT ; SODICITY ; QUALITY ; REGION ; STOCK
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215426
作者单位	1.ICAR Natl Bur Soil Survey & Land Use Planning, Reg Ctr, Udaipur 313001, Rajasthan, India; 2.ICAR Natl Bur Soil Survey & Land Use Planning, Nagpur 440033, Maharashtra, India; 3.ICAR Natl Bur Soil Survey & Land Use Planning, Reg Ctr, Jorhat 785004, Assam, India; 4.ICAR Directorate Rapeseed Mustard Res, Sewar 321303, Bharatpur, India
推荐引用方式 GB/T 7714	Moharana, P. C.,Singh, R. S.,Singh, S. K.,et al. Development of secondary salinity and salt migration in the irrigated landscape of hot arid India[J],2019,78(15).
APA	Moharana, P. C.,Singh, R. S.,Singh, S. K.,Tailor, B. L.,Jena, R. K.,&Meena, M. D..(2019).Development of secondary salinity and salt migration in the irrigated landscape of hot arid India.ENVIRONMENTAL EARTH SCIENCES,78(15).
MLA	Moharana, P. C.,et al."Development of secondary salinity and salt migration in the irrigated landscape of hot arid India".ENVIRONMENTAL EARTH SCIENCES 78.15(2019).