However, since alley cropping syste

However, since alley cropping systems are established
mainly on arable land, on sites with medium or poor soil
quality, the comparison of nutrient exports from alley
cropping with that from conventional agricultural production
schemes seems somewhat more appropriate. Nutrient exports
in agriculture are high due to the intensive management, were
biomass is exported at least once a year and exported
nutrients regularly have to be replaced through fertilization.
Therefore, where annual crops will be substituted by strips of
short rotation coppices, annual nutrient exports from the site
are expected to become lower.