A catastrophic devastating earthquake that measured at Ms 8.0 and the degree of crack 11 occurred on May 12,2008 in Wenchuan of Sichuan province.It caused thousands of people death and serious harm to forest ecosystems.The physical properties of different depths soil in different site (unmoved,landslide and collapse areas) of non-forest were studied in 2009 and 2010,in Mianyang which located in the fault belt.The indexes included soil bulk density,capillary moisture capacity,capillary porosity and non-capillary porosity.The results were as follows:The influence degree of earthquake was the collapse ＞ landslide ＞ non-moved area of non-forest land.After a year,the bulk density have had not recovered,the capillary moisture capacity,capillary porosity and non-capillary porosity of 0-10 cm depth soil in the non-collapse and landslide site have had effectively improved; 10-20 cm and 20-40 cm depth soil had the same trend,but the change was not significant.The soil structure of collapse site has been serious damaged and recovered slowly.
NETL
NSTL
维普
万方数据
