Relaciones entre la infiltración de agua en el suelo y algunas propiedades físicas en las sabanas de la altillanura colombiana = Relationships between infiltration and some soil physical characteristics in the colombian savannas

By:

Hoyos Garcés, Phanor

Contributor(s):

Material type: Article

ArticleLanguage: Spanish Description: 29(1):55-60Subject(s): LOC classification:

70336

In: Suelos Ecuatoriales (Colombia)Summary: Se concluye que la infiltración de agua en los suelos de sabana está estrechamente asociada con la textura de los mismos. Suelos con menos de 20% de arena tienen infiltraciones lentas, los de 50% tienen infiltración moderadas, los de 65% moderadamente rápidas y los de más de 70% de arena tienen infiltraciones muy rápidas. En términos de sistemas de tierra a través de varios usos, la Altillanura ondulada mostró infiltraciones moderadamente rápidas, mientras las de la Altillanura planta y disectada fueron moderadas. Las infiltraciones variaron notablemente con el uso, siendo rápidas en cultivos permanentes, moderadas en sabanas bajas y altas, apsturas y rotaciones de cultivos con pastos y lentas en monocultivos anuales.Summary: This study had the following objectives: a) to study the relationships between infiltration, texture, resistance to rupture and organic matter in savanna soils; b) to compare infiltration, resistance to rupture, bulk density total porosity, sand content in three landscape: Altillanura plana (Ap), Altillanura ondulacla (Ao), Altillanura disectada (Ad) and soil uses perennial crops, monocrops, improved pastures, agropastoral systems, low (bad drainage) and high (well drainage) native savannas. Infiltration values were positively and highly correlated (P<0.0001) with the percentage of sand (r= 0.63) and negatively with the percentages of silt and clay and with resistance to rupture (r=-0.65). Sand contents higher than 60% gave highest values of infiltration. Values of resistance to rupture higher than 45 Kpa correlated with low values of infiltration, while values of about 30 Kpa showed increase in infiltration. It is concluded-that soils with less than 20% of sand content exhibited low infiltration rates, those with 50% had moderated rates, those with 65% moderated high rates and those with 70% of sand very high rates. Altillanura ondulada had infiltration rates higher than "plana" and "disectada". Infiltration rates varied with soil uses and were higher in perennial crops, moderate in low and high savannas and under pastures and agropastoral systems and low under monocrops systems.

Tags from this library: No tags from this library for this title.

Average rating: 0.0 (0 votes)

Holdings ( 1 )
Title notes ( 2 )

Holdings
Item type	Current library	Collection	Call number	Status	Date due	Barcode	Item holds
Journal Article	CIAT Library Document collection CINFOS	Document Collection CINFOS	70336 (Browse shelf(Opens below))	Not for loan

Total holds: 0

Se concluye que la infiltración de agua en los suelos de sabana está estrechamente asociada con la textura de los mismos. Suelos con menos de 20% de arena tienen infiltraciones lentas, los de 50% tienen infiltración moderadas, los de 65% moderadamente rápidas y los de más de 70% de arena tienen infiltraciones muy rápidas. En términos de sistemas de tierra a través de varios usos, la Altillanura ondulada mostró infiltraciones moderadamente rápidas, mientras las de la Altillanura planta y disectada fueron moderadas. Las infiltraciones variaron notablemente con el uso, siendo rápidas en cultivos permanentes, moderadas en sabanas bajas y altas, apsturas y rotaciones de cultivos con pastos y lentas en monocultivos anuales.

This study had the following objectives: a) to study the relationships between infiltration, texture, resistance to rupture and organic matter in savanna soils; b) to compare infiltration, resistance to rupture, bulk density total porosity, sand content in three landscape: Altillanura plana (Ap), Altillanura ondulacla (Ao), Altillanura disectada (Ad) and soil uses perennial crops, monocrops, improved pastures, agropastoral systems, low (bad drainage) and high (well drainage) native savannas. Infiltration values were positively and highly correlated (P<0.0001) with the percentage of sand (r= 0.63) and negatively with the percentages of silt and clay and with resistance to rupture (r=-0.65). Sand contents higher than 60% gave highest values of infiltration. Values of resistance to rupture higher than 45 Kpa correlated with low values of infiltration, while values of about 30 Kpa showed increase in infiltration. It is concluded-that soils with less than 20% of sand content exhibited low infiltration rates, those with 50% had moderated rates, those with 65% moderated high rates and those with 70% of sand very high rates. Altillanura ondulada had infiltration rates higher than "plana" and "disectada". Infiltration rates varied with soil uses and were higher in perennial crops, moderate in low and high savannas and under pastures and agropastoral systems and low under monocrops systems.