The variation of soil nutrient and microbe on different erosion position of hilly Slope in the latosolic red soil region were studied.The result showed that changes of soil pH

organic matter

total N

alkali-hydrolyzable N

available P and K were very obvious

but total P and K were not significant in different erosion position.With intensifying of soil erosion and vegetation destroyed

soil microbial quantity decreased gradually

and intensity of soil basal respiration(SBR) and substrate induced respiration(SIR) declined significantly.Under no grassland vegetation

artificial Schima superba can not conserved obviously soil and water.Grass vegetation should be very necessary in soil and water conservation.