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Accession number: 20

Title: Assessment of groundwater quality for irrigation

purposes and identification of hydrogeochemical evolution mechanisms in Pengyang County, China

Authors: Li, Peiyue1, 2

; Wu, Jianhua1, 2; Qian, Hui1, 2

Author affiliation: 1 School of Environmental Science and Engineering,

Chang'anUniversity, No. 126 Yanta Road, Xi'an, 710054, China

2 Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, No. 126 Yanta Road, Xi'an, 710054, China

Corresponding author: Li, P. ()

Source title: Environmental Earth Sciences

Abbreviated source title: Environ. Earth Sci.

Volume: 69 Issue: 7

Issue date: August 2013

Publication year: 2013

Pages: 2211-2225 Language: English

ISSN: E-ISSN:

Document type: Journal article (JA)

Publisher: Springer Verlag, Tiergartenstrasse 17, Heidelberg,

D-69121, Germany

Abstract: Groundwater is an important water source for

agricultural irrigation in Penyang County. Some traditional methods such as irrigation coefficient, sodium adsorption ratio, total alkalinity, total salinity and total dissolved solids were employed to assess groundwater quality in this area. In addition, an improved technique for order preference by similarity to ideal solution model was applied for comprehensive assessment. The origin of major ions and groundwater hydrogeochemical

evolution

was

also

discussed. Groundwater in Penyang County contains relative concentrations of dominant constituents in the following order: Na+ > Ca2+ > Mg2+ > K+ for cations and HCO3 - > SO4 2- > Cl- > CO3 2- for anions. Groundwater quality is largely excellent and/or good, suggesting general suitability for agricultural use. Calcite and dolomite are found saturated in groundwater and thus tend to precipitate out, while halite, fluorite and gypsum are unsaturated and will dissolve into groundwater during flow. Groundwater in the study area is weathering-dominated, and mineral weathering (carbonate and silicate minerals) and ion exchange are the most important factors controlling groundwater chemistry. ? 2012 Springer-Verlag Berlin Heidelberg.

Number of references: 39

Main heading: Groundwater Controlled terms: Alkalinity - Ion

exchange - Irrigation - Silicate

minerals - Water quality - Weathering

Uncontrolled terms: Agricultural

irrigation - Comprehensive

evolution - Relative

ratio - Total

assessment - Ground-water qualities - Groundwater chemistry - Hydrogeochemical concentration - Sodium dissolved solids

Classification code: Groundwater - Water Pollution Control - Minerals - ,

adsorption

General - Chemical Reactions - Agricultural Methods

DOI: s9-5 Database: Compendex

Compilation and indexing terms, ? 2014 Elsevier Inc

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Accession number: 20

Title: Study on facility system control of integrated traffic terminal with

public security as priority

Authors: Liang, Tao1

; Zhao, Xi1

Author affiliation: 1 School of Management, Tianjin University, Tianjing 300072, China Corresponding author: Liang, T. ()

Source title: 2010 International Conference on Logistics Systems and Intelligent

Management, ICLSIM 2010

Abbreviated source title: Int. Conf. Logist. Syst. Intelligent Manage., ICLSIM

Volume: 1

Monograph title: 2010 International Conference on Logistics Systems and Intelligent

Management, ICLSIM 2010

Issue date: 2010 Publication year: 2010

Pages: 338-341

Article number: 5461409