土层

Weathered rock is the predecessor of saprolite and is mainly made of corestones surrounded by saprolite crust.

层可贮存上层滞，风化岩带则可赋存潜或承压。

Effect of nutrient management on selected topsoil characteristics of a basalt derived Ferralsol in Dak lak ,Vietnam.

表5 养分管理对达拉克(Daklak)一种玄武岩发铝本些表层性质影响 Table 5.

At harvest,root length density and treflan concentration at different soil layer were evaluated using soil auger method.

冬小麦收获后,采用钻法在滴头附近沿垂直方向分层取样,测定各层根长密度和氟乐灵含量,并统计各小区产量。

However, as the soil conditions mentioned above are changed into the claypan, error of 20% was estimated by numerical results.

但将层状黏简化成单一黏层分析所得之桩极限荷重，其误差可达20%。

A residential buildings with 18 story built on the ground consisting of soft marine clay and the subgrade was treated with vibroflotation.

摘要18层住宅楼建在天然地中含淤泥层上，地采用振冲法处理。

It is concluded that the average degree of radial consolidation for a given soil layer increases with its buried depth since the geostatic pressure increases with the lattar.

结果表明，因自重应力随深度增加，层径向排平均固结度随其埋深而增大。

The nutrient of C, N, P, K in rice straw buried by rotocultivator in deep soil layer released at a high rate and less remain than on surface soil.

运用机械将稻秸秆深施于层内，秸秆中碳、氮、磷、钾养分释放比秸秆面施速率高，残留量少。

Site soils in southern area of Jiangsu province belong to washland sediment or limnetic facies sediment.The components of sediment are very complex and process of sedimentation is in disorder.

苏南地区场地主要为漫滩相、湖沼相或冲湖相新近沉积软弱,结构松散,沉积零乱,成分复杂,饱可液化粉细砂层及粉层较为发,在地震或动力荷载作用下有可能发生软震陷或砂液化。

Or through high ridge in a field, covering terra, increasing the temperature of earth, increasing the thickness of dust and frowst in the day time can all be the methods of toting temperature.

起高垄、覆地膜，提高温，增加热层厚度，白天不通气或尽量少通气方法加温。

The central concept of Inceptisols is that of soils of soills of humid and subhumid regions that have altered horizons that have lost bases or iron and aluminum but retain some weatherable minerals.

始成主要特性在于它分布在湿润半湿润地区，发有丧失盐或铝但保留可风化矿物层。