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Spatial variability of soils on national and hillslope scale in Uganda

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Spatial variability of soils on national and hillslope scale in Uganda (Volumen 24) (Tienda española)

Gerd Robert Rücker (Autor)

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Indice, Datei (29 KB)
Lectura de prueba, Datei (38 KB)

ISBN-10 (Impresion) 3865373445
ISBN-13 (Impresion) 9783865373441
ISBN-13 (E-Book) 9783736913448
Idioma Deutsch
Numero de paginas 190
Edicion 1 Aufl.
Serie ZEF Bonn
Volumen 24
Lugar de publicacion Göttingen
Lugar de la disertacion Bonn
Fecha de publicacion 17.01.2005
Clasificacion simple Tesis doctoral
Area Geociencias
Descripcion

Uganda’s soil degradation problems have emerged as a major concern and are threatening the food security of many farmers. In order to tailor site-specific corrective land management, this study investigates the spatial variability of key soil-quality parameters on a national and hillslope scale and assesses the soil redistribution rates on hillslopes in Uganda. Soil and environmental data were collected from 107 villages and 2 hillslopes in Uganda. On a national scale, a GIS-based stratification produced 18 spatial development domains that serve as a pre-classification of soils in Uganda. Within these domains, a zonation algorithm can further delineate hillslopes into landscape elements based on soil variability. This can be done by farmers. The Caesium-137 modeling approach is a suitable technique to estimate soil erosion and sedimentation rates and processes on the hillslopes. These GIS-based maps and hillslope delineation tools can help policy makers and farmers in tailoring appropriate land use systems to their fields and landscapes.