Effect of Wind Power Station on Underlying Surface Soil Bulk Density in Northern China

Abstract

This study sampled and tested the soil samples in wind power station of Huitengxile. Analyze soil bulk density in the different space and time and study the effect of wind power station on soil bulk density in different space and time. Results show that the mean soil bulk density of each year has the tendency of increase with the increase of depth in the range of 0 to 50 centimeters, but the increase extent is not much. The increase of soil bulk density in deep soil layer is the biggest in 1996 and the smallest in 2009 comparing that in the surface soil. The soil bulk density in the range of 0 to 40 centimeters is without obvious change regularity contrasting the control samples. The soil bulk density of control sample is greater than other experiment samples in the range of 40 to 50 centimeters. The change of topsoil soil bulk density is not significant with the increase of wind power station production time in the 10 to 30 centimeters. The change of soil bulk density is significant with the increase of wind power station production time at the depth of 40 to 50 centimeters. The mean soil bulk density takes the trend of decrease with the distance increasing from the wind power station base in different production time. The trend of mean soil bulk density is decreasing more significant in range of 0-60 meters. The change of mean soil bulk density is not big in the range of 80 to 100 meters from the base, and the value of soil bulk density trend to stability. It has not significant change contrasting the mean soil bulk density of different direction. The electricity generated by wind power has not effect on the direction of soil bulk density.