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| Titel |
Hydropedological insights when considering catchment classification |
| VerfasserIn |
J. Bouma, P. Droogers, M. P. W. Sonneveld, C. J. Ritsema, J. E. Hunink, W. W. Immerzeel, S. Kauffman |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 15, no. 6 ; Nr. 15, no. 6 (2011-06-22), S.1909-1919 |
| Datensatznummer |
250012859
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| Publikation (Nr.) |
 copernicus.org/hess-15-1909-2011.pdf |
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| Zusammenfassung |
| Soil classification systems are analysed to explore the potential of
developing classification systems for catchments. Soil classifications are
useful to create systematic order in the overwhelming quantity of different
soils in the world and to extrapolate data available for a given soil type
to soils elsewhere with identical classifications. This principle also
applies to catchments. However, to be useful, soil classifications have to
be based on permanent characteristics as formed by the soil forming factors
over often very long periods of time. When defining permanent catchment
characteristics, discharge data would therefore appear to be less suitable.
But permanent soil characteristics do not necessarily match with
characteristics and parameters needed for functional soil characterization
focusing, for example, on catchment hydrology. Hydropedology has made
contributions towards the required functional characterization of soils as
is illustrated for three recent hydrological catchment studies. However,
much still needs to be learned about the physical behaviour of anisotropic,
heterogeneous soils with varying soil structures during the year and about
spatial and temporal variability. The suggestion is made therefore to first
focus on improving simulation of catchment hydrology, possibly incorporating
hydropedological expertise, before embarking on a catchment classification
effort which involves major input of time and involves the risk of
distraction. In doing so, we suggest to also define other characteristics
for catchment performance than the traditionally measured discharge rates.
Such characteristics may well be derived from societal issues being studied,
as is illustrated for the Green Water Credits program. |
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