NDLI: VLDA model and its application in assessing phreatic water vulnerability in arid area

Content Provider	IEEE Xplore Digital Library
Author	Jinlong Zhou Qiao Li Ruiliang Jia
Copyright Year	2011
Description	Author affiliation: College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi, China (Jinlong Zhou; Qiao Li; Ruiliang Jia)
Abstract	Based on GOD method and DRASTIC model for groundwater vulnerability assessment, in this paper, VLDA model for assessing phreatic water vulnerability is proposed, where V is lithology of vadose zone, L is the pattern of land use, D is groundwater depth, A is the aquifer characteristics. As a case study, the paper assesses the vulnerability of phreatic water in Yanji County of Xinjiang by using the VLDA model as the tool and GIS as the platform, and matches the vulnerability with nitrate content of the phreatic water in September 2009. The results indicate that areas with highly vulnerable pore phreatic water account for 40.83% of the total inland area of Yanji County, including most of the northwestern area (such as the groundwater wellfield in Korla City) and Yanji Town. It is also discovered that areas with phreatic water of higher vulnerability essentially coincide with areas with higher nitrate content, indicating the feasibility of using VLDA model to assess groundwater vulnerability.
Starting Page	1399
Ending Page	1405
File Size	457700
Page Count	7
File Format	PDF
ISBN	9781612847719
e-ISBN	9781612847740
DOI	10.1109/ICMT.2011.6002837
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Water Nitrate Content Groundwater Soil Cities and towns Conductivity Yanji County of Xinjiang Water pollution Vulnerability Indexes VLDA model Water resources
Content Type	Text
Resource Type	Article

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