Development of a GIS method to localize critical source areas of diffuse nitrate pollution

被引：6
作者：
Orlikowski, D. [1 ]
Bugey, A. [1 ]
Perillon, C. [1 ]
Julich, S. [2 ]
Guegain, C. [3 ]
Soyeux, E. [4 ]
Matzinger, A. [1 ]
机构：
[1] KWB, D-10709 Berlin, Germany
[2] Univ Giessen, Inst Landscape Ecol & Resources Management ILR, D-35392 Giessen, Germany
[3] SMEGA, F-22590 Pordic, France
[4] VERI, F-92500 Rueil Malmaison, France
来源：
WATER SCIENCE AND TECHNOLOGY | 2011年 / 64卷 / 04期
关键词：
critical source areas; diffuse NO(3)(-) pollution; GIS; NONPOINT-SOURCE POLLUTION; NITROGEN; SCALE; CATCHMENT; SOIL;
D O I：
10.2166/wst.2011.672
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The present study aimed at developing a universal method for the localization of critical source areas (CSAs) of diffuse nitrate (NO(3)(-)) pollution in rural catchments with low data availability. Based on existing methods, land use, soil, slope, riparian buffer strips and distance to surface waters were identified as the most relevant indicator parameters for diffuse agricultural NO(3)(-) pollution. The five parameters were averaged in a GIS-overlay to localize areas with low, medium and high risk of NO(3)(-) pollution. A first application of the GIS approach to the Ic catchment in France, showed that identified CSAs were in good agreement with results from river monitoring and numerical modelling. Additionally, the GIS approach showed low sensitivity to single parameters, which makes it robust to varying data availability. As a result, the tested GIS-approach provides a promising, easy-to-use CSA identification concept, applicable for a wide range of rural catchments.
引用
收藏
页码：892 / 898
页数：7
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