|Table of Contents|

Nitrogen pollution status and forecast in shallow groundwater in blown-sand region of northern Shaanxi province(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2010年03期
Page:
93-99
Research Field:
Publishing date:
2010-06-20

Info

Title:
Nitrogen pollution status and forecast in shallow groundwater in blown-sand region of northern Shaanxi province
Author(s):
LI Xiao-lian1;  LI Qi2
1. School of City and Environment, Northwest University, Xi'an 710069, Shaanxi, China; 2. School of Environmental Science and Engineering, Chang'an University, Xi'an 710054, Shaanxi, China
Keywords:
shallow groundwater;  nitrogen pollution;  numerical simulation;  prediction;  blown-sand region;  northern Shaanxi province
PACS:
P641.3
DOI:
-
Abstract:
This paper is to assess and simulate the nitrogen pollution in shallow groundwater in the blown-sand region of the northern Shaanxi province by the methods of field sampling, indoor tests analysis, pollution assessment and numerical simulation. The results showed that the groundwater in the study area has been suffering from ammonia, nitrite, nitrate pollution in different degrees. Through the status analysis and numerical simulation, the most groundwater quality in the study areas is in a good condition, contaminated areas are mainly distributed in irrigation areas and densely populated areas where the water table is less than 5m. These areas are susceptible to groundwater pollution in high-risk areas, so enhancing the control of illegitimate human activities and improving the water resource management should be done to effectively protect the groundwater resource against pollution and bring about the sustainable development of economy. This paper established the coupled model of unsaturated zone water and mitrogen migration and transformation to provide early warning platform for groundwater pollution and protection of the region in the future. 1 tab, 8 figs, 17 refs.

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Last Update: 2010-06-20