Impact of land use changes on the hydrological properties of volcanic ash soils in South Ecuador.

Principales Conclusiones

The water retention at wilting point diminishes by an average 16%, after two years of cultivation. no recovery of the water retention was observed when fields are changed into pasture; It seems to be an irreversible event. The water retention loss is much larger at 15 cm depth (21%) than the reduction at 40 cm, beneath the plough layer. Organic matter is mainly responsible for the high water retention, forming stable aggregates with clay-sized particles. More than allophane. Loss of litter layer implies 16 mm water retention.

Volumen

18

Número

0

Palabras claves

Orden de Entrada

28

Tipo de Referencia

Articulos en revistas

Año

2002

Lugar de Publicación

Ecuador
Rango de Páginas (texto): 
94-100
Bases de datos sobre conservación

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