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water-stability
    Water-stability aggregate was positive correlated with organic content at r2 =0.9251. By six kind of fertilization treatments with equivalent N content, NO3-N content with only N fertilizer utilization were 2.9, 1.8 and 1.6 times higher than that in N+ organic fertilizer, NPK and NP treatments.
    水稳性团聚体含量与有机质含量呈r2=0.9251的正相关关系。 6个不同施肥处理在施N量相同的条件下,单施N肥土壤的NO3-N含量最高,分别是N+有机肥、NPK、NP处理的2.9倍、1.8倍和1.6倍。
    Enhancing Water-Stability of Asphalt Pavements with Hydrated Lime
    应用消石灰提高沥青路面的水稳性
    3. Fly ash possesses higher strength, but it sensitive to water, so its strength water-stability is slow and after infiltration its strength decline quickly.
    3.粉煤灰土有较高的强度,但对水的敏感性高,水稳性差,饱水后强度急剧降低。
    Based on the analysis of physical and chemical features such as the water content of soil, crumb structure subject to water-stability and organic matter content of soil disturbed or undisturbed through simulated rainfall test, the paper pointed out that the rate of various features varied slightly. Most of them rounded 5%, and almost identified in the shallow layer.
    本文通过人工模拟降雨试验,分析了扰动与未扰动试验区土壤的含水率、水稳性团粒结构、有机质含量等理化特性的差异,指出扰动土经过人为处理后,土壤理化特性与未扰动土误差大多在5%左右,仅个别超过10%,浅层土的理化特性基本一致.
    Increased decomposition and decreased input of organic matter after reclamation were responsible for the decrease in b oth the water-stability of aggregate and the amount of water-stable aggregates in karst soils.
    水稳定性团聚体以及团聚的水稳性均与有机质的含量呈正相关 ,林地、草坡开垦后 ,土壤有机质分解加快或补充减少是土壤团聚体水稳定性下降及数量减少的主要原因。
    Either the water-stability of aggregates (especially >2mm ) or the content of water-stable aggregates is highly correlated with the contents of soil organic matter. This result shows that organic matter is the cementation of soil aggregate structure.
    水稳性团聚体 (尤其是 >2mm的水稳性团聚体 )以及团聚的水稳性主要受有机质的含量影响 ,目前有机质是这一地区土壤结构形成的最为重要的胶结物质 ;
    Increased decomposition and decreased input of organic matter after reclamation of shrub grassland and woodland are responsible for the decrease in both the water-stability of aggregates and the amount of water-stable aggregates in karst soils.
    林地、草坡开垦后 ,土壤有机质分解加快或补充减少是土壤团聚体水稳性下降及数量减少的主要原因。
    In comparison of the tested materials, the highest values in SQ, A% and WMWD associated with M-PAM (polyacrylamide) surface treatment showed that MPAM had the strongest effects on film-formation, erosion-resistance, and aggregate water-stability and can be recommended as practices combined with water-saving irrigation and soil conservation tillage in dryland soil.
    用SQ值、A%、WMWD对不同高分子材料固土性能综合比较,MPAM(M-聚丙烯酰胺)处理的SQ值、WMWD值和A%值均为最大,表明其对表土成膜性、抗破碎性和团粒水稳性影响均最强,可优先推荐配合在节水灌溉和旱地保护性耕作土壤上应用;
    With CLP (crosslinked polyacrylamide) treatment, the higher A%, but the lower SQ and WMWD suggested that CLP had the weaker wet aggregate water-stability and is suitable for water and fertilizer conservation in seasonal drought soils, and especially is applicable for water-saving cultivation management of cash crops.
    CLP(交联性丙烯酰胺)处理的A%值排序靠前,但SQ值和湿筛WMWD排序最后,说明其与土壤的固结力和对土壤团粒水稳性影响相对较弱,适用于季节性干旱地区土壤保水保肥,尤其可作为经济作物的节水栽培管理措施。
    Its intensity and water-stability have to be taken into account for expansive clay embankment given the characteristics of the expansive clay. Based on single compactness index under the current standards (JTJ013-95) in China, saturation degree should be served as an other compaction control index so as to make the compacted embankment more stable.
    膨胀土的强烈亲水性使得其用于路堤填料时要兼顾强度与水稳性的要求,在根据现行规范《公路路基设计规范》(JTJ013-95)用一个压实度指标的基础上,同时考虑饱和度作为压实时的另一控制指标,用这两项指标共同实现路堤压实稳定。
    (2)The CBR swell amount reduces when the initial water content increases. The CBR swell amount is higher as the initial water content is lower,and the roadbed water-stability is worse;
    (2)CBR膨胀量随起始含水量增大而减小,起始含水量越低,CBR膨胀量就越大,路基的水稳性就越差;
 

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