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CIFOR-ICRAF s’attaque aux défis et aux opportunités locales tout en apportant des solutions aux problèmes mondiaux concernant les forêts, les paysages, les populations et la planète.

Nous fournissons des preuves et des solutions concrètes pour transformer l’utilisation des terres et la production alimentaire : conserver et restaurer les écosystèmes, répondre aux crises mondiales du climat, de la malnutrition, de la biodiversité et de la désertification. En bref, nous améliorons la vie des populations.

CIFOR–ICRAF publishes over 750 publications every year on agroforestry, forests and climate change, landscape restoration, rights, forest policy and much more – in multiple languages.

CIFOR–ICRAF addresses local challenges and opportunities while providing solutions to global problems for forests, landscapes, people and the planet.

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Using pore sizes as described in soil profile descriptions to estimate infiltration rate and saturated hydraulic conductivity

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This study tests relationships between, on the one hand, field-saturated infiltration rate into the uppermost sloping soil layer (Kfsi) and field-saturated hydraulic conductivity in soil horizons (Kfsi) and, on the other hand, in situ determined macropore sizes in soil profile descriptions. It was carried out at six locations along a transect on'a slope with loamy soils. The macropores were classified into representative size indices based on pore diameters (Ptd) and pore areas (Pta). A strong relationship was found between (Kfsh) and (Ptd )and between Kfsh and Ptd. The approach is promising and the methodology could be further developed with the aim of generalizing the functional relationships, so that (Kfs), can be estimated in areas where soil sur- vey databases contain information on pore size abundance but lack Kfs values.

DOI:
https://doi.org/10.1111/j.1475-2743.2005.tb00399.x
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