Investigating soil and groundwater quality at different scales in a forested catchment : the Waldstein case study

Lischeid, G. and Alewell, C. and Bittersohl, J. and Gottlein, A. and Jungnickel, C. and Lange, H. and Manderscheid, B. and Moritz, K. and Ostendorf, B. and Sager, H.. (1998) Investigating soil and groundwater quality at different scales in a forested catchment : the Waldstein case study. Nutrient cycling in agroecosystems, Vol. 50, H. 1-3. pp. 109-118.

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Official URL: http://edoc.unibas.ch/dok/A5251184

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The impact of anthropogenic depositions on soil and groundwater quality has been the subject of numerous studies in the last two decades. However, the problem of linking results and models at different scales remains to be solved. A case study has been performed in the Fichtelgebirge region in South-East Germany. Data from this case study has been used to analyse scale dependences of spatial variance, autocorrelation lengths, and the interdependence of soil hydrological and soil chemical parameters. For soil suction, spatial variability increases stepwise with scale. Three different sources of variation could be identified, predominating at different ranges of scale, making a deterministic mapping feasible. Local SO4 deposition explained much of the spatial pattern of SO4 concentration in soil solution and in catchment runoff observed at different scales. This is mainly due to the fact that the sorption capacity of the soils in this region has been exceeded. Decreasing SO4 deposition in the long term run is likely to enhance the influence of the soil, and reduces the correlation between deposition and soil solution concentration. NO3 showed minimum variation at the county scale. This seems to be a reasonable representative elementary area for mapping regional NO3 concentration patterns. For protons and Cl, neither observed spatial patterns nor the scale dependence of spatial heterogeneity could be explained adequately.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Geowissenschaften > Umweltgeowissenschaften (Alewell)
UniBasel Contributors:Alewell, Christine
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:28
Deposited On:22 Mar 2012 14:05

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