DBPapers
DOI: 10.5593/sgem2011/s13.118

IDENTIFICATION OF WATERS UNDER NITRATES POLLUTION THREAT USING MODELLING APPROACH IN OPEN-GIS ENVIRONMENT

AUTHOR/S: M. C. TRIFU, et al.
Monday 1 August 2011 by Libadmin2011

11th International Multidisciplinary Scientific GeoConference SGEM2011, www.sgem.org, SGEM2011 Conference Proceedings/ ISSN 1314-2704, June 20-25, 2011, Vol. 2, 895-902 pp

ABSTRACT

The paper present the LIFE09 ENV/RO/000612 - CLEANWATER project, which foresees the development of an integrated approach for the management of nitrogen
pollution, within the river catchments, with emphasis on modelling tools for delimiting
the nutrients vulnerable zones, as well as for analyzing the proper measures from the
environmental and economical point of view.

The Barlad River Basin (surface of 7220 km2, mean altitude 211 m) represents 17% of
the surface of Siret river basin, which is the biggest Romanian river basin, characterized
by a great number of agricultural sources and nitrate vulnerable zones. The effects of
land use planning options, at river basin scale, are analyzed in the framework of the
project, by an entirely computerized system. The system includes several software
modules that calculate the environmental impact of human activities, a GIS platform to
which all the data is sent and serves as common ground for processing and interpret the
results offered.

Evaluation of human impact using GIS environment offers a global view of the pollution problems at the basin scale and will improve the local and central authorities’ analysis in the field of nutrient management, especially the waters polluted or threatened by nitrogen pollution. By choosing a modelling approach combined with
current monitoring, the proposed GIS system could be able to answer different environmental questions such as: the impact of existed pollution sources especially on the phreatic aquifers that assure the drinking water supply, the synergy between maninduced
changes and climatic changes and hydrological related, the contributions of different sources (point and diffuse sources) to the N and P input to the waters quality, making the deference between agricultural source and others sources(e.g. 77% of the
population reject the wastewater directly in the soil).

In spite of others European approaches based on use of descriptive parameters and afferent weight system, the CLEANWATER project integrates a holistic view on the water management, being based on a river basin approach that allows handling in the
most effective way different activities affecting the quality and the quantity of the water.
The proposal allows simulating both surface and groundwater systems and their
interaction, making available conjunctive modelling of surface, soil and groundwater.
Using modelling approach it is possible to separate the various types of pollution
sources (agriculture, industry, localities) in actual and future environmental conditions.

Keywords: modelling, water quality management, nutrients pollution, Nitrates Directive, nitrates vulnerable zone

PAPER 2011/s13.118: IDENTIFICATION OF WATERS UNDER NITRATES POLLUTION THREAT USING MODELLING APPROACH IN OPEN-GIS ENVIRONMENT

30 EURO ADD TO CART


Your cart ( items)

Subtotal:
Tax cost ():
Shipping cost:
Total:
Checkout Empty