Notice of Retraction Changes in Soil Physical Properties of Forest Floors in the Wenchuan Earthquake-Induced Landslides

摘要: A strong earthquake seriously disturbs local soil-forest ecosystems. However, the information is little, especially for how changes in soil physical properties of forest floors induced landslide areas. It useful us to know difficult naturally ecological restoration disaster Thus, an experiment was conducted northern section fault belt formed by Wenchuan Earthquake China. 15 plots with 20 m × size were set up Cupressus funebris and Cryptomeria fortunei plantations located non moved areas near belt. The non-moved almost from each other. Within plots, five points at center four corners determined sampling. Each samples collected 0-10 cm, >;10-20 cm >;20-40 depths all plots. taken June October, 2009. Soil bulk density, total porosity, capillary non-capillary water content, saturated moisture capacity field measured lab. study revealed that density increased decreased soils compared soils. All not different three layers both had higher only lower other than did soil. no seasonal These results indicate structure more damaged areas, became tightening drying, but differed various forests. a weaker ability retention ecosystems species would be variable future.