The seasonal wetting-drying cycles result in a down-slope creeping of the shallow soil layer, leading to progressive slope failure.

季节性干湿循环使得边坡浅层土体逐渐发生向坡下蠕变，以致边坡发生渐进累积破坏。

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In General, the deformation of Unsaturated Soils (loess, expansive Soil et al.) is complicated with 4 essential effects as follows: loading, wetting, temperature and creeping.

膨胀性或湿陷性非饱和土一般存在四种变形效应，即力效应、水效应、温度效应和流变效应。

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Moreover, seasonal freezing and melting and seasonal drying and wetting are the direct factors causing soil to expand and contract.

认为土壤胀缩运动主要决定于土壤粘粒的含量，同时季节性冻融作用与干湿交替作用是导致土壤胀缩运动的直接因素。

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Over a two-year experiment, we saw that there was a change in the soil structure as a result of a wetting and drying of the soil in clay-rich soils, and that can increase the amount of structure and hence storage of water.

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The key additives in Organic Choice soil: chicken manure and yucca plant extract, a wetting agent.

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