水土保持研究2011，Vol.18Issue(3)：182-186,5.
应用保水剂对黄绵土水分特征的影响研究
Investigation on Loess Soil Water Characteristic as Influenced by SAPs
摘要
Abstract
In order to search the rule of SAPs' activity on loess soil, centrifuge method was used to measure soil water characteristic curve on different concentration of SAPs. Influence of soil moisture on different SAPs with various concentrations, influence of soil absorbing capacity and efficiency on different SAPs, and comparison of the SAPs were analyzed systematically. The results show that: (1) Concentration had obvious effects on soil saturation moisture, and 0.75％ was a boundary; (2) Soil moisture rised with the increase of SAPs' concentration, and declined with the increase of soil potential. The effect in low-suction period(0.01～0.8 MPa) was stronger than that of high-suction period (0. 8～1.5 MPa), especially in 0. 01～0. 05 MPa;(3) From the experimental results: STOCKOSORBTM SAP was the best, and AQUASORBTM SAP was the second, and ACRYLATE SAP was the worst. The strongpoint of STOCKOSORBTM SAP was embodied in two aspects: the amount and efficiency of absorbing available water.关键词
土壤含水量/土壤水分特征曲线/土壤有效水/比水容量Key words
soil moisture/ soil water characteristic curve/ soil available water/ specific water capacity分类
农业科技引用本文复制引用
杨浩,王百田,岳征文,王婷,李振..应用保水剂对黄绵土水分特征的影响研究[J].水土保持研究,2011,18(3):182-186,5.基金项目
国家"十一五"科技支撑项目"难立地工程造林新材料、新产品及应用技术"(2006BAD03A0301) （2006BAD03A0301）
