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[1]CHEN Zhiqiang,WANG Xuan,BAO Yongxue.Dynamic Variations of Surface Soil Moisture Contents Under Different Slope Protection Measures in Highway[J].Research of Soil and Water Conservation,2017,24(02):77-83.

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Dynamic Variations of Surface Soil Moisture Contents Under Different Slope Protection Measures in Highway

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 24 Number of periods: 2017 02 Page number: 77-83 Column: Public date: 2017-04-28

Title:: Dynamic Variations of Surface Soil Moisture Contents Under Different Slope Protection Measures in Highway

Author(s):: CHEN Zhiqiang, WANG Xuan, BAO Yongxue; College of Water Conservancy, Shenyang Agricultural University, Shenyang 110866, China

Keywords:: side slope protection measure; soil moisture content; water conservation effect; spatiotemporal characteristics

CLC:: S152.7

DOI:: -

Abstract:: Four typical kinds of slope protection measures, including turf (CP), hanging net (GW), hexagon hollow brick (LJ) and rhombus (LX), along the Shenfu Highway, had been taken into account in order to determine the water conservation effects of those measures in highway slopes, and the soil moisture contents of those measures were determined using soil moisture measuring instrument, so as to analyze the spatiotemporal characteristics of surface soil moisture contents in different slope protection procedures. The results showed that in all protection slopes, soil water contents followed the order:lower slope > middle slope > upper slope; On the 13^th day and 14^th day, the mean soil water contents followed the order:CP > GW > LJ > LX, while on the 15^th day and 16^th day, it followed the order:CP > LJ > GW > LX; under the same protection measure, the variation degrees of soil water contents in each slope position increased gradually over time; under the same slope, the variable coefficient (CV) of surface soil moisture content in hexagon hollow brick slope followed the order:upper slope > lower slope > middle slope, while other slopes followed the order:upper slope > middle slope > lower slope; in all protection slopes, the variation degrees of soil water contents followed the order over time:LX(12.5%) > GW(10.6%) > CP(9.2%) > LJ(8.5%), in which the rhombus had a significant difference with other three measures(p < 0.05), and hanging net had a significant difference with hexagon hollow brick (p < 0.05), while the difference between turf and these two measures were insignificant; cooperation of hexagon hollow brick with Amorpha fruticosa L. and Kniphofia uvaria had better water conservation effect.

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