| Soil water-holding properties of different soil body configuration |
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| DOI：10.7606/j.issn.1000-7601.2016.04.01 |
| Key Words: soil configuration soil saturated hydraulic conductivity field capacity soil water-holding performance |
| Author Name | Affiliation | | CUI Hao-hao | Institute of Hydrogeology and Environmental Geology, Shijiazhuang, Hebei 050061, China | | ZHANG Bing | Institute of Hydrogeology and Environmental Geology, Shijiazhuang, Hebei 050061, China | | FENG Xin | Institute of Hydrogeology and Environmental Geology, Shijiazhuang, Hebei 050061, China | | GAO Ye-xin | Institute of Hydrogeology and Environmental Geology, Shijiazhuang, Hebei 050061, China |
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| Abstract: |
| Through GMS software 3D modeling capabilities, one grape base soil configuration in Ningxia was divided into four categories: loam-sand, sand, loam-sand-clay and loam-clay-sand type. It analyzed the features of field capacity, saturated hydraulic conductivity and bulk density, and studied the soil water-holding performance on different soil body configuration. The results showed that different soil configuration had different bulk density, field capacity and soil saturated hydraulic conductivity. The sand soil configuration had the lowest field capacity (13%) and bulk density (1.5 g·cm-3), but the highest soil saturated hydraulic conductivity (3.2 m·d-1). On the contrary, the loam-clay-sand configuration had the highest field capacity(16.5%) and bulk density(1.63 g·cm-3), but the lowest soil saturated hydraulic conductivity (1.02 m·d-1). Field capacity has negative correlation with soil saturated hydraulic conductivity (-0.92), but it was positively related with bulk density (0.73), among the four soil body configurations, the loam-clay-sand type had the best soil water-holding performance, sand type was the worst, and the other types had the general configuration, which need to be modified in order to improve the soil water-holding performance. |
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