Studies on Soil Water Stable Aggregates in Silver Fir and Spruce Forests Managed under Diffeuent Silvicultural Systems in Himachal Pradesh

A study was carried out in Himachal Pradesh to investigate the water stable aggregate in silver fir and spruce forests under selection, shelterwood systems and clearfelled areas. Macro-aggregate (2-5 mm) and micro (0.10-0.5 mm) aggregates were more pronounced under selection system due to the higher organic matter and clay followed by shelterwood and clearfelled area. Macro-aggregates were higher in top layers while micro-aggregates were higher in lower layers in all sites.