Roles of different species tree plantation in remidiation of degraded soils on sloping lands I. Physical properties and soil sediments

Abstract

This experiment was a study on changes of some soil physical properties in 2 years old tree plantationson sloping lands for one year. There were found that the tree’s growth increasing in one year period had madedecreases of water run-off on soil surface, amount of soil sediment, soil bulk density and soil aggregate stability,increases of soil mean weight diameter and soil saturated hydraulic conductivity. Tree plantation could reduce thedirect impact force of rainfall on soil surface and produce more organic matter from its litter which together resultedin better soil physical properties in sloping lands.