Effect of different interferences on soil characters in saline soil of Hexi Corridor arid zone
河西走廊干旱区盐渍土扰动对土壤性质的影响

The effects of different interferences on saline soil characters are compared in arid area of Hexi Corridor by random investigation.The Ca content reduces and HCO3 content increases in surface layer of soil on the land of planting pear tree,breeding Pyrus betulaefolia Bage,growing wheat,discarded land,and fallow.The reducing ratio of Ca2 content in soil of breeding Pyrus betulaefolia Bage is the biggest.The value of buck density is related with the amount of root,saline soil character and organic matter.The discarded land and fallow will reduce suitable activity of soil for growth.Planting wheat is the best way to improve saline soil in the arid zone.