Investigating soil and groundwater quality at different scales in a forested catchment: the Waldstein case study
作者： G. Lischeid , C. Alewell , J. Bittersohl , A. Göttlein , C. Jungnickel
关键词: Common spatial pattern 、 Hydrology (agriculture) 、 Environmental science 、 Scale (ratio) 、 Soil chemistry 、 Spatial ecology 、 Soil water 、 Spatial variability 、 Soil science 、 Hydrology 、 Spatial heterogeneity
摘要: The impact of anthropogenic depositions on soil and groundwater quality has been the subject numerous studies in last two decades. However, problem linking results models at different scales remains to be solved. A case study performed Fichtelgebirge region South-East Germany. Data from this used analyse scale dependences spatial variance, autocorrelation lengths, interdependence hydrological chemical parameters. For suction, variability increases stepwise with scale. Three sources variation could identified, predominating ranges scale, making a deterministic mapping feasible. Local SO4 deposition explained much pattern concentration solution catchment runoff observed scales. This is mainly due fact that sorption capacity soils exceeded. Decreasing long term run likely enhance influence soil, reduces correlation between concentration. NO3 showed minimum county seems reasonable representative elementary area for regional patterns. protons Cl, neither patterns nor dependence heterogeneity adequately.
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